./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--infiniband--ulp--isert--ib_isert.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 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--infiniband--ulp--isert--ib_isert.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 d57db9f03a5170fd6970a4ac4989029ee35a0e85ad6a1c5337395bb7ff185d1b --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 01:17:14,083 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 01:17:14,086 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 01:17:14,123 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 01:17:14,124 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 01:17:14,125 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 01:17:14,126 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 01:17:14,128 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 01:17:14,130 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 01:17:14,134 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 01:17:14,134 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 01:17:14,136 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 01:17:14,136 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 01:17:14,138 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 01:17:14,139 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 01:17:14,141 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 01:17:14,142 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 01:17:14,143 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 01:17:14,144 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 01:17:14,148 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 01:17:14,150 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 01:17:14,151 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 01:17:14,151 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 01:17:14,152 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 01:17:14,153 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 01:17:14,159 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 01:17:14,159 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 01:17:14,160 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 01:17:14,161 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 01:17:14,161 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 01:17:14,162 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 01:17:14,162 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 01:17:14,163 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 01:17:14,164 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 01:17:14,164 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 01:17:14,165 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 01:17:14,165 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 01:17:14,166 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 01:17:14,166 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 01:17:14,166 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 01:17:14,167 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 01:17:14,169 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 01:17:14,170 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-14 01:17:14,195 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 01:17:14,195 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 01:17:14,196 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 01:17:14,196 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 01:17:14,196 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 01:17:14,197 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 01:17:14,197 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 01:17:14,197 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 01:17:14,197 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 01:17:14,198 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 01:17:14,198 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 01:17:14,198 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 01:17:14,198 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 01:17:14,199 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 01:17:14,199 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 01:17:14,199 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 01:17:14,199 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 01:17:14,199 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 01:17:14,199 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 01:17:14,200 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 01:17:14,200 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 01:17:14,200 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 01:17:14,200 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 01:17:14,200 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 01:17:14,200 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 01:17:14,201 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 01:17:14,201 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 01:17:14,201 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 01:17:14,201 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 01:17:14,201 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 01:17:14,201 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d57db9f03a5170fd6970a4ac4989029ee35a0e85ad6a1c5337395bb7ff185d1b [2022-07-14 01:17:14,414 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 01:17:14,436 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 01:17:14,438 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 01:17:14,439 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 01:17:14,439 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 01:17:14,440 INFO L432 ainManager$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--infiniband--ulp--isert--ib_isert.ko-entry_point.cil.out.i [2022-07-14 01:17:14,493 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bddfe9f4b/cc1a386f56464b63b551d6728f27315a/FLAG8acf09376 [2022-07-14 01:17:15,163 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 01:17:15,163 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--infiniband--ulp--isert--ib_isert.ko-entry_point.cil.out.i [2022-07-14 01:17:15,198 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bddfe9f4b/cc1a386f56464b63b551d6728f27315a/FLAG8acf09376 [2022-07-14 01:17:15,513 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bddfe9f4b/cc1a386f56464b63b551d6728f27315a [2022-07-14 01:17:15,514 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 01:17:15,515 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 01:17:15,517 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 01:17:15,517 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 01:17:15,523 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 01:17:15,523 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 01:17:15" (1/1) ... [2022-07-14 01:17:15,524 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3734194b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:17:15, skipping insertion in model container [2022-07-14 01:17:15,524 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 01:17:15" (1/1) ... [2022-07-14 01:17:15,529 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 01:17:15,647 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 01:17:18,344 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--infiniband--ulp--isert--ib_isert.ko-entry_point.cil.out.i[477998,478011] [2022-07-14 01:17:18,694 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 01:17:18,719 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 01:17:19,268 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--infiniband--ulp--isert--ib_isert.ko-entry_point.cil.out.i[477998,478011] [2022-07-14 01:17:19,283 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 01:17:19,372 INFO L208 MainTranslator]: Completed translation [2022-07-14 01:17:19,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:17:19 WrapperNode [2022-07-14 01:17:19,374 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 01:17:19,375 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 01:17:19,375 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 01:17:19,375 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 01:17:19,380 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:17:19" (1/1) ... [2022-07-14 01:17:19,482 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:17:19" (1/1) ... [2022-07-14 01:17:19,692 INFO L137 Inliner]: procedures = 483, calls = 2853, calls flagged for inlining = 237, calls inlined = 184, statements flattened = 6966 [2022-07-14 01:17:19,693 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 01:17:19,694 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 01:17:19,694 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 01:17:19,695 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 01:17:19,701 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:17:19" (1/1) ... [2022-07-14 01:17:19,701 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:17:19" (1/1) ... [2022-07-14 01:17:19,749 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:17:19" (1/1) ... [2022-07-14 01:17:19,750 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:17:19" (1/1) ... [2022-07-14 01:17:19,866 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:17:19" (1/1) ... [2022-07-14 01:17:19,888 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:17:19" (1/1) ... [2022-07-14 01:17:19,919 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:17:19" (1/1) ... [2022-07-14 01:17:19,958 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 01:17:19,959 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 01:17:19,959 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 01:17:19,959 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 01:17:19,963 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:17:19" (1/1) ... [2022-07-14 01:17:19,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 01:17:19,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 01:17:19,992 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) [2022-07-14 01:17:19,997 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 [2022-07-14 01:17:20,016 INFO L130 BoogieDeclarations]: Found specification of procedure ib_wc_status_msg [2022-07-14 01:17:20,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_wc_status_msg [2022-07-14 01:17:20,017 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-14 01:17:20,017 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-14 01:17:20,017 INFO L130 BoogieDeclarations]: Found specification of procedure isert_setup_id [2022-07-14 01:17:20,017 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_setup_id [2022-07-14 01:17:20,017 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-14 01:17:20,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-14 01:17:20,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_isert_conn [2022-07-14 01:17:20,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_isert_conn [2022-07-14 01:17:20,018 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2022-07-14 01:17:20,018 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2022-07-14 01:17:20,018 INFO L130 BoogieDeclarations]: Found specification of procedure dump_stack [2022-07-14 01:17:20,018 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_stack [2022-07-14 01:17:20,018 INFO L130 BoogieDeclarations]: Found specification of procedure iscsit_stop_dataout_timer [2022-07-14 01:17:20,018 INFO L138 BoogieDeclarations]: Found implementation of procedure iscsit_stop_dataout_timer [2022-07-14 01:17:20,018 INFO L130 BoogieDeclarations]: Found specification of procedure rdma_destroy_id [2022-07-14 01:17:20,019 INFO L138 BoogieDeclarations]: Found implementation of procedure rdma_destroy_id [2022-07-14 01:17:20,019 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2022-07-14 01:17:20,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2022-07-14 01:17:20,019 INFO L130 BoogieDeclarations]: Found specification of procedure isert_cq_work [2022-07-14 01:17:20,019 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_cq_work [2022-07-14 01:17:20,019 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-14 01:17:20,019 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-14 01:17:20,019 INFO L130 BoogieDeclarations]: Found specification of procedure ib_post_recv [2022-07-14 01:17:20,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_post_recv [2022-07-14 01:17:20,020 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_sync_single_for_device [2022-07-14 01:17:20,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_sync_single_for_device [2022-07-14 01:17:20,020 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-14 01:17:20,020 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-14 01:17:20,020 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_isert_conn [2022-07-14 01:17:20,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_isert_conn [2022-07-14 01:17:20,020 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_unmap_single [2022-07-14 01:17:20,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_unmap_single [2022-07-14 01:17:20,021 INFO L130 BoogieDeclarations]: Found specification of procedure isert_init_send_wr [2022-07-14 01:17:20,021 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_init_send_wr [2022-07-14 01:17:20,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_np_accept_mutex_of_isert_np [2022-07-14 01:17:20,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_np_accept_mutex_of_isert_np [2022-07-14 01:17:20,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-14 01:17:20,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-14 01:17:20,021 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-14 01:17:20,021 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-14 01:17:20,022 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_np_accept_mutex_of_isert_np [2022-07-14 01:17:20,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_np_accept_mutex_of_isert_np [2022-07-14 01:17:20,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 01:17:20,022 INFO L130 BoogieDeclarations]: Found specification of procedure ib_sg_dma_address [2022-07-14 01:17:20,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_sg_dma_address [2022-07-14 01:17:20,022 INFO L130 BoogieDeclarations]: Found specification of procedure isert_wait_conn [2022-07-14 01:17:20,022 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_wait_conn [2022-07-14 01:17:20,022 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u64~0~X~int~X~int~TO~VOID [2022-07-14 01:17:20,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u64~0~X~int~X~int~TO~VOID [2022-07-14 01:17:20,023 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-07-14 01:17:20,023 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-07-14 01:17:20,023 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-07-14 01:17:20,023 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-07-14 01:17:20,023 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_map_single [2022-07-14 01:17:20,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_map_single [2022-07-14 01:17:20,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-14 01:17:20,023 INFO L130 BoogieDeclarations]: Found specification of procedure isert_conn_terminate [2022-07-14 01:17:20,024 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_conn_terminate [2022-07-14 01:17:20,024 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-14 01:17:20,024 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-14 01:17:20,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-14 01:17:20,024 INFO L130 BoogieDeclarations]: Found specification of procedure isert_prot_cmd [2022-07-14 01:17:20,024 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_prot_cmd [2022-07-14 01:17:20,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-14 01:17:20,024 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-14 01:17:20,024 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-14 01:17:20,025 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_interruptible [2022-07-14 01:17:20,025 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_interruptible [2022-07-14 01:17:20,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-14 01:17:20,025 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-14 01:17:20,025 INFO L130 BoogieDeclarations]: Found specification of procedure isert_release_work [2022-07-14 01:17:20,025 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_release_work [2022-07-14 01:17:20,025 INFO L130 BoogieDeclarations]: Found specification of procedure isert_free_np [2022-07-14 01:17:20,025 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_free_np [2022-07-14 01:17:20,025 INFO L130 BoogieDeclarations]: Found specification of procedure isert_comp_put [2022-07-14 01:17:20,026 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_comp_put [2022-07-14 01:17:20,026 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-07-14 01:17:20,026 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-07-14 01:17:20,026 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2022-07-14 01:17:20,026 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2022-07-14 01:17:20,026 INFO L130 BoogieDeclarations]: Found specification of procedure sg_next [2022-07-14 01:17:20,026 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_next [2022-07-14 01:17:20,026 INFO L130 BoogieDeclarations]: Found specification of procedure sg_copy_from_buffer [2022-07-14 01:17:20,026 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_copy_from_buffer [2022-07-14 01:17:20,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-14 01:17:20,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-14 01:17:20,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-14 01:17:20,027 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2022-07-14 01:17:20,027 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2022-07-14 01:17:20,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 01:17:20,027 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2022-07-14 01:17:20,027 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2022-07-14 01:17:20,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-14 01:17:20,028 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-14 01:17:20,028 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-14 01:17:20,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-14 01:17:20,028 INFO L130 BoogieDeclarations]: Found specification of procedure isert_completion_put [2022-07-14 01:17:20,028 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_completion_put [2022-07-14 01:17:20,028 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-07-14 01:17:20,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-07-14 01:17:20,028 INFO L130 BoogieDeclarations]: Found specification of procedure isert_unmap_data_buf [2022-07-14 01:17:20,029 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_unmap_data_buf [2022-07-14 01:17:20,029 INFO L130 BoogieDeclarations]: Found specification of procedure isert_inv_rkey [2022-07-14 01:17:20,029 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_inv_rkey [2022-07-14 01:17:20,029 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-07-14 01:17:20,029 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-07-14 01:17:20,029 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_sync_single_for_cpu [2022-07-14 01:17:20,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_sync_single_for_cpu [2022-07-14 01:17:20,029 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-14 01:17:20,029 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-14 01:17:20,030 INFO L130 BoogieDeclarations]: Found specification of procedure isert_allocate_cmd [2022-07-14 01:17:20,030 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_allocate_cmd [2022-07-14 01:17:20,030 INFO L130 BoogieDeclarations]: Found specification of procedure isert_do_control_comp [2022-07-14 01:17:20,030 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_do_control_comp [2022-07-14 01:17:20,030 INFO L130 BoogieDeclarations]: Found specification of procedure isert_put_conn [2022-07-14 01:17:20,030 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_put_conn [2022-07-14 01:17:20,030 INFO L130 BoogieDeclarations]: Found specification of procedure isert_connect_release [2022-07-14 01:17:20,030 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_connect_release [2022-07-14 01:17:20,030 INFO L130 BoogieDeclarations]: Found specification of procedure isert_free_comps [2022-07-14 01:17:20,031 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_free_comps [2022-07-14 01:17:20,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 01:17:20,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 01:17:20,031 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-07-14 01:17:20,031 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-07-14 01:17:20,031 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-14 01:17:20,031 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-14 01:17:20,031 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-07-14 01:17:20,032 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-07-14 01:17:20,032 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2022-07-14 01:17:20,032 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2022-07-14 01:17:20,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-14 01:17:20,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-14 01:17:20,032 INFO L130 BoogieDeclarations]: Found specification of procedure isert_device_put [2022-07-14 01:17:20,032 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_device_put [2022-07-14 01:17:20,032 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-14 01:17:20,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-14 01:17:20,032 INFO L130 BoogieDeclarations]: Found specification of procedure isert_map_data_buf [2022-07-14 01:17:20,033 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_map_data_buf [2022-07-14 01:17:20,033 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-14 01:17:20,033 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-14 01:17:20,033 INFO L130 BoogieDeclarations]: Found specification of procedure isert_free_conn [2022-07-14 01:17:20,033 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_free_conn [2022-07-14 01:17:20,033 INFO L130 BoogieDeclarations]: Found specification of procedure ib_post_send [2022-07-14 01:17:20,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_post_send [2022-07-14 01:17:20,033 INFO L130 BoogieDeclarations]: Found specification of procedure isert_init_tx_hdrs [2022-07-14 01:17:20,033 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_init_tx_hdrs [2022-07-14 01:17:20,034 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2022-07-14 01:17:20,034 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2022-07-14 01:17:20,034 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-07-14 01:17:20,034 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-07-14 01:17:20,034 INFO L130 BoogieDeclarations]: Found specification of procedure ib_free_fast_reg_page_list [2022-07-14 01:17:20,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_free_fast_reg_page_list [2022-07-14 01:17:20,034 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-07-14 01:17:20,034 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-07-14 01:17:20,034 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-14 01:17:20,034 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-14 01:17:20,035 INFO L130 BoogieDeclarations]: Found specification of procedure isert_aborted_task [2022-07-14 01:17:20,035 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_aborted_task [2022-07-14 01:17:20,035 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-14 01:17:20,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-14 01:17:20,035 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2022-07-14 01:17:20,035 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2022-07-14 01:17:20,035 INFO L130 BoogieDeclarations]: Found specification of procedure isert_put_response [2022-07-14 01:17:20,035 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_put_response [2022-07-14 01:17:20,035 INFO L130 BoogieDeclarations]: Found specification of procedure isert_wait4flush [2022-07-14 01:17:20,036 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_wait4flush [2022-07-14 01:17:20,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-14 01:17:20,036 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-14 01:17:20,036 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-14 01:17:20,036 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-14 01:17:20,036 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-07-14 01:17:20,036 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-07-14 01:17:20,036 INFO L130 BoogieDeclarations]: Found specification of procedure isert_free_login_buf [2022-07-14 01:17:20,036 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_free_login_buf [2022-07-14 01:17:20,036 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-07-14 01:17:20,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-07-14 01:17:20,037 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-07-14 01:17:20,037 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-07-14 01:17:20,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 01:17:20,037 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-14 01:17:20,037 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-14 01:17:20,037 INFO L130 BoogieDeclarations]: Found specification of procedure iscsit_priv_cmd [2022-07-14 01:17:20,037 INFO L138 BoogieDeclarations]: Found implementation of procedure iscsit_priv_cmd [2022-07-14 01:17:20,037 INFO L130 BoogieDeclarations]: Found specification of procedure isert_put_nopin [2022-07-14 01:17:20,038 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_put_nopin [2022-07-14 01:17:20,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-14 01:17:20,038 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2022-07-14 01:17:20,038 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2022-07-14 01:17:20,038 INFO L130 BoogieDeclarations]: Found specification of procedure isert_reg_rdma [2022-07-14 01:17:20,038 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_reg_rdma [2022-07-14 01:17:20,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-14 01:17:20,038 INFO L130 BoogieDeclarations]: Found specification of procedure isert_post_recv [2022-07-14 01:17:20,038 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_post_recv [2022-07-14 01:17:20,039 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-07-14 01:17:20,039 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-07-14 01:17:20,039 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-14 01:17:20,039 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-14 01:17:20,039 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-07-14 01:17:20,039 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-07-14 01:17:20,039 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-07-14 01:17:20,039 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-07-14 01:17:20,039 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-14 01:17:20,040 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-14 01:17:20,040 INFO L130 BoogieDeclarations]: Found specification of procedure isert_rdma_post_recvl [2022-07-14 01:17:20,040 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_rdma_post_recvl [2022-07-14 01:17:20,040 INFO L130 BoogieDeclarations]: Found specification of procedure isert_conn_free_fastreg_pool [2022-07-14 01:17:20,040 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_conn_free_fastreg_pool [2022-07-14 01:17:20,040 INFO L130 BoogieDeclarations]: Found specification of procedure transport_send_check_condition_and_sense [2022-07-14 01:17:20,040 INFO L138 BoogieDeclarations]: Found implementation of procedure transport_send_check_condition_and_sense [2022-07-14 01:17:20,040 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-07-14 01:17:20,040 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-07-14 01:17:20,041 INFO L130 BoogieDeclarations]: Found specification of procedure isert_reg_sig_mr [2022-07-14 01:17:20,041 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_reg_sig_mr [2022-07-14 01:17:20,041 INFO L130 BoogieDeclarations]: Found specification of procedure transport_generic_free_cmd [2022-07-14 01:17:20,041 INFO L138 BoogieDeclarations]: Found implementation of procedure transport_generic_free_cmd [2022-07-14 01:17:20,041 INFO L130 BoogieDeclarations]: Found specification of procedure isert_unmap_tx_desc [2022-07-14 01:17:20,041 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_unmap_tx_desc [2022-07-14 01:17:20,041 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-07-14 01:17:20,041 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-07-14 01:17:20,041 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_device_list_mutex [2022-07-14 01:17:20,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_device_list_mutex [2022-07-14 01:17:20,042 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_device_list_mutex [2022-07-14 01:17:20,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_device_list_mutex [2022-07-14 01:17:20,042 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_weight [2022-07-14 01:17:20,082 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_weight [2022-07-14 01:17:20,082 INFO L130 BoogieDeclarations]: Found specification of procedure isert_handle_prot_cmd [2022-07-14 01:17:20,082 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_handle_prot_cmd [2022-07-14 01:17:20,082 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dereg_mr [2022-07-14 01:17:20,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dereg_mr [2022-07-14 01:17:20,082 INFO L130 BoogieDeclarations]: Found specification of procedure ib_req_notify_cq [2022-07-14 01:17:20,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_req_notify_cq [2022-07-14 01:17:20,082 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-14 01:17:20,082 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-14 01:17:20,082 INFO L130 BoogieDeclarations]: Found specification of procedure isert_check_pi_status [2022-07-14 01:17:20,082 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_check_pi_status [2022-07-14 01:17:20,083 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2022-07-14 01:17:20,083 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2022-07-14 01:17:20,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-14 01:17:20,083 INFO L130 BoogieDeclarations]: Found specification of procedure isert_create_send_desc [2022-07-14 01:17:20,083 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_create_send_desc [2022-07-14 01:17:20,083 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-14 01:17:20,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-14 01:17:20,083 INFO L130 BoogieDeclarations]: Found specification of procedure ib_sg_dma_len [2022-07-14 01:17:20,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_sg_dma_len [2022-07-14 01:17:20,083 INFO L130 BoogieDeclarations]: Found specification of procedure isert_fast_reg_mr [2022-07-14 01:17:20,083 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_fast_reg_mr [2022-07-14 01:17:20,083 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-14 01:17:20,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-14 01:17:20,083 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2022-07-14 01:17:20,083 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2022-07-14 01:17:20,083 INFO L130 BoogieDeclarations]: Found specification of procedure isert_post_response [2022-07-14 01:17:20,083 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_post_response [2022-07-14 01:17:20,083 INFO L130 BoogieDeclarations]: Found specification of procedure ib_alloc_fast_reg_mr [2022-07-14 01:17:20,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_alloc_fast_reg_mr [2022-07-14 01:17:20,083 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-07-14 01:17:20,084 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-07-14 01:17:20,084 INFO L130 BoogieDeclarations]: Found specification of procedure isert_rx_login_req [2022-07-14 01:17:20,084 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_rx_login_req [2022-07-14 01:17:20,084 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2022-07-14 01:17:20,084 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2022-07-14 01:17:20,084 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_mapping_error [2022-07-14 01:17:20,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_mapping_error [2022-07-14 01:17:20,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 01:17:20,084 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-07-14 01:17:20,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-07-14 01:17:20,084 INFO L130 BoogieDeclarations]: Found specification of procedure target_put_sess_cmd [2022-07-14 01:17:20,084 INFO L138 BoogieDeclarations]: Found implementation of procedure target_put_sess_cmd [2022-07-14 01:17:20,084 INFO L130 BoogieDeclarations]: Found specification of procedure isert_set_dif_domain [2022-07-14 01:17:20,084 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_set_dif_domain [2022-07-14 01:17:20,084 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2022-07-14 01:17:20,084 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2022-07-14 01:17:20,084 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dealloc_pd [2022-07-14 01:17:20,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dealloc_pd [2022-07-14 01:17:20,084 INFO L130 BoogieDeclarations]: Found specification of procedure ib_alloc_fast_reg_page_list [2022-07-14 01:17:20,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_alloc_fast_reg_page_list [2022-07-14 01:17:20,084 INFO L130 BoogieDeclarations]: Found specification of procedure iscsit_build_rsp_pdu [2022-07-14 01:17:20,084 INFO L138 BoogieDeclarations]: Found implementation of procedure iscsit_build_rsp_pdu [2022-07-14 01:17:20,920 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 01:17:20,923 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 01:17:21,079 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-14 01:17:26,359 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 01:17:26,382 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 01:17:26,382 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-14 01:17:26,386 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 01:17:26 BoogieIcfgContainer [2022-07-14 01:17:26,386 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 01:17:26,388 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 01:17:26,388 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 01:17:26,391 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 01:17:26,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 01:17:15" (1/3) ... [2022-07-14 01:17:26,392 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@225b10d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 01:17:26, skipping insertion in model container [2022-07-14 01:17:26,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:17:19" (2/3) ... [2022-07-14 01:17:26,393 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@225b10d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 01:17:26, skipping insertion in model container [2022-07-14 01:17:26,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 01:17:26" (3/3) ... [2022-07-14 01:17:26,394 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--infiniband--ulp--isert--ib_isert.ko-entry_point.cil.out.i [2022-07-14 01:17:26,404 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 01:17:26,404 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-14 01:17:26,481 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 01:17:26,486 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@c4ae7b4, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@efa71b8 [2022-07-14 01:17:26,486 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-14 01:17:26,496 INFO L276 IsEmpty]: Start isEmpty. Operand has 2358 states, 1636 states have (on average 1.3361858190709046) internal successors, (2186), 1696 states have internal predecessors, (2186), 590 states have call successors, (590), 131 states have call predecessors, (590), 130 states have return successors, (584), 573 states have call predecessors, (584), 584 states have call successors, (584) [2022-07-14 01:17:26,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-07-14 01:17:26,509 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:17:26,510 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:17:26,510 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:17:26,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:17:26,516 INFO L85 PathProgramCache]: Analyzing trace with hash 926087783, now seen corresponding path program 1 times [2022-07-14 01:17:26,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:17:26,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103188730] [2022-07-14 01:17:26,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:17:26,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:17:26,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:17:26,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:17:26,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:17:27,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:17:27,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:17:27,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:17:27,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:17:27,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 01:17:27,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:17:27,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:17:27,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:17:27,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-14 01:17:27,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:17:27,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:17:27,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:17:27,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-14 01:17:27,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:17:27,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:17:27,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:17:27,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-14 01:17:27,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:17:27,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:17:27,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:17:27,222 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-07-14 01:17:27,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:17:27,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103188730] [2022-07-14 01:17:27,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103188730] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:17:27,223 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:17:27,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 01:17:27,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889234188] [2022-07-14 01:17:27,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:17:27,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 01:17:27,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:17:27,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 01:17:27,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 01:17:27,260 INFO L87 Difference]: Start difference. First operand has 2358 states, 1636 states have (on average 1.3361858190709046) internal successors, (2186), 1696 states have internal predecessors, (2186), 590 states have call successors, (590), 131 states have call predecessors, (590), 130 states have return successors, (584), 573 states have call predecessors, (584), 584 states have call successors, (584) Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-14 01:17:29,725 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:17:31,750 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:17:35,864 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:17:37,939 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:17:42,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:17:42,412 INFO L93 Difference]: Finished difference Result 5481 states and 8253 transitions. [2022-07-14 01:17:42,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 01:17:42,414 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 82 [2022-07-14 01:17:42,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:17:42,465 INFO L225 Difference]: With dead ends: 5481 [2022-07-14 01:17:42,466 INFO L226 Difference]: Without dead ends: 3105 [2022-07-14 01:17:42,484 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-07-14 01:17:42,486 INFO L413 NwaCegarLoop]: 3002 mSDtfsCounter, 2714 mSDsluCounter, 2728 mSDsCounter, 0 mSdLazyCounter, 2286 mSolverCounterSat, 2125 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2781 SdHoareTripleChecker+Valid, 5730 SdHoareTripleChecker+Invalid, 4415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2125 IncrementalHoareTripleChecker+Valid, 2286 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.7s IncrementalHoareTripleChecker+Time [2022-07-14 01:17:42,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2781 Valid, 5730 Invalid, 4415 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2125 Valid, 2286 Invalid, 4 Unknown, 0 Unchecked, 14.7s Time] [2022-07-14 01:17:42,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3105 states. [2022-07-14 01:17:42,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3105 to 2335. [2022-07-14 01:17:42,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2335 states, 1621 states have (on average 1.3183220234423196) internal successors, (2137), 1673 states have internal predecessors, (2137), 584 states have call successors, (584), 130 states have call predecessors, (584), 129 states have return successors, (572), 561 states have call predecessors, (572), 572 states have call successors, (572) [2022-07-14 01:17:42,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2335 states to 2335 states and 3293 transitions. [2022-07-14 01:17:42,624 INFO L78 Accepts]: Start accepts. Automaton has 2335 states and 3293 transitions. Word has length 82 [2022-07-14 01:17:42,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:17:42,624 INFO L495 AbstractCegarLoop]: Abstraction has 2335 states and 3293 transitions. [2022-07-14 01:17:42,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-14 01:17:42,624 INFO L276 IsEmpty]: Start isEmpty. Operand 2335 states and 3293 transitions. [2022-07-14 01:17:42,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-07-14 01:17:42,628 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:17:42,628 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:17:42,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-14 01:17:42,628 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:17:42,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:17:42,629 INFO L85 PathProgramCache]: Analyzing trace with hash -41262871, now seen corresponding path program 1 times [2022-07-14 01:17:42,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:17:42,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080490406] [2022-07-14 01:17:42,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:17:42,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:17:42,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:17:42,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:17:42,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:17:42,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:17:42,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:17:42,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:17:42,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:17:42,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 01:17:42,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:17:42,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:17:42,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:17:42,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-14 01:17:42,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:17:43,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:17:43,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:17:43,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-14 01:17:43,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:17:43,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:17:43,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:17:43,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-14 01:17:43,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:17:43,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:17:43,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:17:43,063 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-07-14 01:17:43,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:17:43,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080490406] [2022-07-14 01:17:43,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080490406] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:17:43,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:17:43,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 01:17:43,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347165761] [2022-07-14 01:17:43,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:17:43,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 01:17:43,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:17:43,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 01:17:43,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-14 01:17:43,066 INFO L87 Difference]: Start difference. First operand 2335 states and 3293 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, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-14 01:17:45,373 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:17:47,404 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:17:55,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:17:55,672 INFO L93 Difference]: Finished difference Result 3124 states and 4643 transitions. [2022-07-14 01:17:55,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 01:17:55,672 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, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 82 [2022-07-14 01:17:55,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:17:55,689 INFO L225 Difference]: With dead ends: 3124 [2022-07-14 01:17:55,690 INFO L226 Difference]: Without dead ends: 3120 [2022-07-14 01:17:55,692 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-14 01:17:55,692 INFO L413 NwaCegarLoop]: 2943 mSDtfsCounter, 5460 mSDsluCounter, 3943 mSDsCounter, 0 mSdLazyCounter, 3133 mSolverCounterSat, 2705 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5799 SdHoareTripleChecker+Valid, 6886 SdHoareTripleChecker+Invalid, 5840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2705 IncrementalHoareTripleChecker+Valid, 3133 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2022-07-14 01:17:55,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5799 Valid, 6886 Invalid, 5840 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2705 Valid, 3133 Invalid, 2 Unknown, 0 Unchecked, 12.3s Time] [2022-07-14 01:17:55,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3120 states. [2022-07-14 01:17:55,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3120 to 2348. [2022-07-14 01:17:55,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2348 states, 1631 states have (on average 1.3151440833844268) internal successors, (2145), 1681 states have internal predecessors, (2145), 582 states have call successors, (582), 135 states have call predecessors, (582), 134 states have return successors, (572), 561 states have call predecessors, (572), 572 states have call successors, (572) [2022-07-14 01:17:55,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2348 states to 2348 states and 3299 transitions. [2022-07-14 01:17:55,800 INFO L78 Accepts]: Start accepts. Automaton has 2348 states and 3299 transitions. Word has length 82 [2022-07-14 01:17:55,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:17:55,802 INFO L495 AbstractCegarLoop]: Abstraction has 2348 states and 3299 transitions. [2022-07-14 01:17:55,802 INFO L496 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, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-14 01:17:55,803 INFO L276 IsEmpty]: Start isEmpty. Operand 2348 states and 3299 transitions. [2022-07-14 01:17:55,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-07-14 01:17:55,807 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:17:55,807 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:17:55,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-14 01:17:55,807 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:17:55,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:17:55,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1280119528, now seen corresponding path program 1 times [2022-07-14 01:17:55,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:17:55,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922837887] [2022-07-14 01:17:55,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:17:55,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:17:55,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:17:56,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:17:56,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:17:56,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:17:56,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:17:56,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:17:56,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:17:56,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 01:17:56,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:17:56,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:17:56,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:17:56,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-14 01:17:56,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:17:56,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:17:56,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:17:56,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-14 01:17:56,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:17:56,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:17:56,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:17:56,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-14 01:17:56,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:17:56,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:17:56,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:17:56,243 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-07-14 01:17:56,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:17:56,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922837887] [2022-07-14 01:17:56,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922837887] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:17:56,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:17:56,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 01:17:56,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263496294] [2022-07-14 01:17:56,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:17:56,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 01:17:56,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:17:56,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 01:17:56,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-14 01:17:56,247 INFO L87 Difference]: Start difference. First operand 2348 states and 3299 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-14 01:17:58,517 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:18:00,552 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:18:04,555 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:18:06,651 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:18:10,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:18:10,935 INFO L93 Difference]: Finished difference Result 3120 states and 4638 transitions. [2022-07-14 01:18:10,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 01:18:10,936 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 83 [2022-07-14 01:18:10,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:18:10,949 INFO L225 Difference]: With dead ends: 3120 [2022-07-14 01:18:10,950 INFO L226 Difference]: Without dead ends: 3117 [2022-07-14 01:18:10,952 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-07-14 01:18:10,952 INFO L413 NwaCegarLoop]: 2919 mSDtfsCounter, 5513 mSDsluCounter, 2826 mSDsCounter, 0 mSdLazyCounter, 2334 mSolverCounterSat, 2711 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5856 SdHoareTripleChecker+Valid, 5745 SdHoareTripleChecker+Invalid, 5049 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2711 IncrementalHoareTripleChecker+Valid, 2334 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.4s IncrementalHoareTripleChecker+Time [2022-07-14 01:18:10,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5856 Valid, 5745 Invalid, 5049 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2711 Valid, 2334 Invalid, 4 Unknown, 0 Unchecked, 14.4s Time] [2022-07-14 01:18:10,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3117 states. [2022-07-14 01:18:11,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3117 to 2347. [2022-07-14 01:18:11,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2347 states, 1631 states have (on average 1.3145309625996322) internal successors, (2144), 1680 states have internal predecessors, (2144), 581 states have call successors, (581), 135 states have call predecessors, (581), 134 states have return successors, (572), 561 states have call predecessors, (572), 572 states have call successors, (572) [2022-07-14 01:18:11,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2347 states to 2347 states and 3297 transitions. [2022-07-14 01:18:11,038 INFO L78 Accepts]: Start accepts. Automaton has 2347 states and 3297 transitions. Word has length 83 [2022-07-14 01:18:11,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:18:11,038 INFO L495 AbstractCegarLoop]: Abstraction has 2347 states and 3297 transitions. [2022-07-14 01:18:11,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-14 01:18:11,039 INFO L276 IsEmpty]: Start isEmpty. Operand 2347 states and 3297 transitions. [2022-07-14 01:18:11,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-07-14 01:18:11,040 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:18:11,040 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:18:11,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-14 01:18:11,041 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:18:11,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:18:11,041 INFO L85 PathProgramCache]: Analyzing trace with hash -1029965364, now seen corresponding path program 1 times [2022-07-14 01:18:11,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:18:11,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922048648] [2022-07-14 01:18:11,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:18:11,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:18:11,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:18:11,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:18:11,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:18:11,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:18:11,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:18:11,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:18:11,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:18:11,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 01:18:11,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:18:11,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:18:11,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:18:11,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-14 01:18:11,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:18:11,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:18:11,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:18:11,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-14 01:18:11,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:18:11,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:18:11,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:18:11,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-14 01:18:11,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:18:11,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:18:11,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:18:11,310 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-07-14 01:18:11,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:18:11,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922048648] [2022-07-14 01:18:11,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922048648] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:18:11,311 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:18:11,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 01:18:11,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549958565] [2022-07-14 01:18:11,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:18:11,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 01:18:11,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:18:11,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 01:18:11,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-14 01:18:11,314 INFO L87 Difference]: Start difference. First operand 2347 states and 3297 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-14 01:18:13,585 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:18:15,617 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:18:22,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:18:22,615 INFO L93 Difference]: Finished difference Result 3119 states and 4636 transitions. [2022-07-14 01:18:22,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 01:18:22,615 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 84 [2022-07-14 01:18:22,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:18:22,631 INFO L225 Difference]: With dead ends: 3119 [2022-07-14 01:18:22,631 INFO L226 Difference]: Without dead ends: 3116 [2022-07-14 01:18:22,634 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-07-14 01:18:22,635 INFO L413 NwaCegarLoop]: 2920 mSDtfsCounter, 5916 mSDsluCounter, 2691 mSDsCounter, 0 mSdLazyCounter, 2332 mSolverCounterSat, 2872 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6257 SdHoareTripleChecker+Valid, 5611 SdHoareTripleChecker+Invalid, 5206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2872 IncrementalHoareTripleChecker+Valid, 2332 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2022-07-14 01:18:22,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6257 Valid, 5611 Invalid, 5206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2872 Valid, 2332 Invalid, 2 Unknown, 0 Unchecked, 11.1s Time] [2022-07-14 01:18:22,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3116 states. [2022-07-14 01:18:22,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3116 to 2346. [2022-07-14 01:18:22,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2346 states, 1631 states have (on average 1.3139178418148376) internal successors, (2143), 1679 states have internal predecessors, (2143), 580 states have call successors, (580), 135 states have call predecessors, (580), 134 states have return successors, (572), 561 states have call predecessors, (572), 572 states have call successors, (572) [2022-07-14 01:18:22,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2346 states to 2346 states and 3295 transitions. [2022-07-14 01:18:22,729 INFO L78 Accepts]: Start accepts. Automaton has 2346 states and 3295 transitions. Word has length 84 [2022-07-14 01:18:22,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:18:22,729 INFO L495 AbstractCegarLoop]: Abstraction has 2346 states and 3295 transitions. [2022-07-14 01:18:22,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-14 01:18:22,730 INFO L276 IsEmpty]: Start isEmpty. Operand 2346 states and 3295 transitions. [2022-07-14 01:18:22,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-07-14 01:18:22,731 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:18:22,731 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:18:22,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-14 01:18:22,732 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:18:22,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:18:22,732 INFO L85 PathProgramCache]: Analyzing trace with hash 81815386, now seen corresponding path program 1 times [2022-07-14 01:18:22,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:18:22,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567065057] [2022-07-14 01:18:22,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:18:22,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:18:22,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:18:22,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:18:22,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:18:22,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:18:22,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:18:22,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:18:22,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:18:22,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 01:18:22,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:18:23,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:18:23,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:18:23,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-14 01:18:23,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:18:23,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:18:23,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:18:23,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-14 01:18:23,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:18:23,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:18:23,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:18:23,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-14 01:18:23,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:18:23,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:18:23,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:18:23,095 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-07-14 01:18:23,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:18:23,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567065057] [2022-07-14 01:18:23,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567065057] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:18:23,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:18:23,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 01:18:23,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697947194] [2022-07-14 01:18:23,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:18:23,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 01:18:23,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:18:23,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 01:18:23,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-14 01:18:23,099 INFO L87 Difference]: Start difference. First operand 2346 states and 3295 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-07-14 01:18:26,393 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:18:29,761 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:18:31,790 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:18:39,579 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:18:42,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:18:42,906 INFO L93 Difference]: Finished difference Result 8053 states and 11743 transitions. [2022-07-14 01:18:42,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 01:18:42,906 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 86 [2022-07-14 01:18:42,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:18:42,928 INFO L225 Difference]: With dead ends: 8053 [2022-07-14 01:18:42,928 INFO L226 Difference]: Without dead ends: 5728 [2022-07-14 01:18:42,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-14 01:18:42,939 INFO L413 NwaCegarLoop]: 3296 mSDtfsCounter, 6981 mSDsluCounter, 5005 mSDsCounter, 0 mSdLazyCounter, 4916 mSolverCounterSat, 4225 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7297 SdHoareTripleChecker+Valid, 8301 SdHoareTripleChecker+Invalid, 9145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4225 IncrementalHoareTripleChecker+Valid, 4916 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.3s IncrementalHoareTripleChecker+Time [2022-07-14 01:18:42,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7297 Valid, 8301 Invalid, 9145 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4225 Valid, 4916 Invalid, 4 Unknown, 0 Unchecked, 19.3s Time] [2022-07-14 01:18:42,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5728 states. [2022-07-14 01:18:43,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5728 to 4194. [2022-07-14 01:18:43,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4194 states, 2930 states have (on average 1.3112627986348122) internal successors, (3842), 3018 states have internal predecessors, (3842), 1002 states have call successors, (1002), 262 states have call predecessors, (1002), 261 states have return successors, (994), 971 states have call predecessors, (994), 994 states have call successors, (994) [2022-07-14 01:18:43,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4194 states to 4194 states and 5838 transitions. [2022-07-14 01:18:43,123 INFO L78 Accepts]: Start accepts. Automaton has 4194 states and 5838 transitions. Word has length 86 [2022-07-14 01:18:43,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:18:43,124 INFO L495 AbstractCegarLoop]: Abstraction has 4194 states and 5838 transitions. [2022-07-14 01:18:43,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-07-14 01:18:43,125 INFO L276 IsEmpty]: Start isEmpty. Operand 4194 states and 5838 transitions. [2022-07-14 01:18:43,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-07-14 01:18:43,126 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:18:43,126 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:18:43,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-14 01:18:43,126 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:18:43,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:18:43,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1865116005, now seen corresponding path program 1 times [2022-07-14 01:18:43,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:18:43,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763566501] [2022-07-14 01:18:43,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:18:43,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:18:43,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:18:43,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:18:43,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:18:43,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:18:43,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:18:43,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:18:43,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:18:43,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 01:18:43,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:18:43,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:18:43,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:18:43,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-14 01:18:43,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:18:43,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:18:43,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:18:43,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-14 01:18:43,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:18:43,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:18:43,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:18:43,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-14 01:18:43,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:18:43,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:18:43,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:18:43,421 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-07-14 01:18:43,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:18:43,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763566501] [2022-07-14 01:18:43,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763566501] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:18:43,422 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:18:43,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 01:18:43,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751838249] [2022-07-14 01:18:43,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:18:43,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 01:18:43,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:18:43,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 01:18:43,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-14 01:18:43,424 INFO L87 Difference]: Start difference. First operand 4194 states and 5838 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-14 01:18:47,595 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:18:49,630 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:18:54,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:18:54,235 INFO L93 Difference]: Finished difference Result 5710 states and 8452 transitions. [2022-07-14 01:18:54,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 01:18:54,236 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 85 [2022-07-14 01:18:54,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:18:54,256 INFO L225 Difference]: With dead ends: 5710 [2022-07-14 01:18:54,256 INFO L226 Difference]: Without dead ends: 5707 [2022-07-14 01:18:54,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-07-14 01:18:54,259 INFO L413 NwaCegarLoop]: 2928 mSDtfsCounter, 5878 mSDsluCounter, 2709 mSDsCounter, 0 mSdLazyCounter, 2339 mSolverCounterSat, 2846 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6219 SdHoareTripleChecker+Valid, 5637 SdHoareTripleChecker+Invalid, 5187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2846 IncrementalHoareTripleChecker+Valid, 2339 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2022-07-14 01:18:54,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6219 Valid, 5637 Invalid, 5187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2846 Valid, 2339 Invalid, 2 Unknown, 0 Unchecked, 10.5s Time] [2022-07-14 01:18:54,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5707 states. [2022-07-14 01:18:54,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5707 to 4193. [2022-07-14 01:18:54,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4193 states, 2930 states have (on average 1.3109215017064846) internal successors, (3841), 3017 states have internal predecessors, (3841), 1001 states have call successors, (1001), 262 states have call predecessors, (1001), 261 states have return successors, (994), 971 states have call predecessors, (994), 994 states have call successors, (994) [2022-07-14 01:18:54,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4193 states to 4193 states and 5836 transitions. [2022-07-14 01:18:54,430 INFO L78 Accepts]: Start accepts. Automaton has 4193 states and 5836 transitions. Word has length 85 [2022-07-14 01:18:54,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:18:54,432 INFO L495 AbstractCegarLoop]: Abstraction has 4193 states and 5836 transitions. [2022-07-14 01:18:54,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-14 01:18:54,432 INFO L276 IsEmpty]: Start isEmpty. Operand 4193 states and 5836 transitions. [2022-07-14 01:18:54,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-07-14 01:18:54,433 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:18:54,433 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:18:54,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-14 01:18:54,433 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:18:54,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:18:54,434 INFO L85 PathProgramCache]: Analyzing trace with hash -1984977233, now seen corresponding path program 1 times [2022-07-14 01:18:54,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:18:54,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876211594] [2022-07-14 01:18:54,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:18:54,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:18:54,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:18:54,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:18:54,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:18:54,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:18:54,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:18:54,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:18:54,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:18:54,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 01:18:54,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:18:54,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:18:54,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:18:54,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-14 01:18:54,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:18:54,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:18:54,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:18:54,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-14 01:18:54,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:18:54,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:18:54,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:18:54,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-14 01:18:54,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:18:54,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:18:54,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:18:54,693 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-07-14 01:18:54,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:18:54,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876211594] [2022-07-14 01:18:54,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876211594] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:18:54,694 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:18:54,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 01:18:54,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876778907] [2022-07-14 01:18:54,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:18:54,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 01:18:54,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:18:54,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 01:18:54,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-14 01:18:54,696 INFO L87 Difference]: Start difference. First operand 4193 states and 5836 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-14 01:18:57,927 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:18:59,612 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:19:02,806 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:19:04,832 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:19:10,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:19:10,843 INFO L93 Difference]: Finished difference Result 5729 states and 8463 transitions. [2022-07-14 01:19:10,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 01:19:10,843 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 86 [2022-07-14 01:19:10,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:19:10,869 INFO L225 Difference]: With dead ends: 5729 [2022-07-14 01:19:10,869 INFO L226 Difference]: Without dead ends: 5725 [2022-07-14 01:19:10,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-14 01:19:10,871 INFO L413 NwaCegarLoop]: 2924 mSDtfsCounter, 5427 mSDsluCounter, 3952 mSDsCounter, 0 mSdLazyCounter, 3147 mSolverCounterSat, 2689 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5751 SdHoareTripleChecker+Valid, 6876 SdHoareTripleChecker+Invalid, 5839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2689 IncrementalHoareTripleChecker+Valid, 3147 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.8s IncrementalHoareTripleChecker+Time [2022-07-14 01:19:10,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5751 Valid, 6876 Invalid, 5839 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2689 Valid, 3147 Invalid, 3 Unknown, 0 Unchecked, 15.8s Time] [2022-07-14 01:19:10,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5725 states. [2022-07-14 01:19:11,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5725 to 4209. [2022-07-14 01:19:11,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4209 states, 2942 states have (on average 1.308633582596873) internal successors, (3850), 3027 states have internal predecessors, (3850), 999 states have call successors, (999), 268 states have call predecessors, (999), 267 states have return successors, (994), 971 states have call predecessors, (994), 994 states have call successors, (994) [2022-07-14 01:19:11,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4209 states to 4209 states and 5843 transitions. [2022-07-14 01:19:11,040 INFO L78 Accepts]: Start accepts. Automaton has 4209 states and 5843 transitions. Word has length 86 [2022-07-14 01:19:11,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:19:11,040 INFO L495 AbstractCegarLoop]: Abstraction has 4209 states and 5843 transitions. [2022-07-14 01:19:11,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-14 01:19:11,041 INFO L276 IsEmpty]: Start isEmpty. Operand 4209 states and 5843 transitions. [2022-07-14 01:19:11,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-07-14 01:19:11,042 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:19:11,042 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:19:11,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-14 01:19:11,043 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:19:11,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:19:11,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1405703138, now seen corresponding path program 1 times [2022-07-14 01:19:11,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:19:11,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401118265] [2022-07-14 01:19:11,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:19:11,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:19:11,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:19:11,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:19:11,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:19:11,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:19:11,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:19:11,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:19:11,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:19:11,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 01:19:11,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:19:11,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:19:11,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:19:11,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-14 01:19:11,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:19:11,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:19:11,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:19:11,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-14 01:19:11,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:19:11,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:19:11,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:19:11,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-14 01:19:11,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:19:11,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:19:11,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:19:11,268 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-07-14 01:19:11,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:19:11,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401118265] [2022-07-14 01:19:11,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401118265] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:19:11,268 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:19:11,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 01:19:11,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596707460] [2022-07-14 01:19:11,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:19:11,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 01:19:11,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:19:11,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 01:19:11,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-14 01:19:11,270 INFO L87 Difference]: Start difference. First operand 4209 states and 5843 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-14 01:19:15,421 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:19:17,464 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:19:22,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:19:22,128 INFO L93 Difference]: Finished difference Result 6256 states and 9136 transitions. [2022-07-14 01:19:22,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 01:19:22,128 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 87 [2022-07-14 01:19:22,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:19:22,151 INFO L225 Difference]: With dead ends: 6256 [2022-07-14 01:19:22,152 INFO L226 Difference]: Without dead ends: 6236 [2022-07-14 01:19:22,157 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-14 01:19:22,158 INFO L413 NwaCegarLoop]: 2963 mSDtfsCounter, 6074 mSDsluCounter, 2772 mSDsCounter, 0 mSdLazyCounter, 2749 mSolverCounterSat, 2990 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6421 SdHoareTripleChecker+Valid, 5735 SdHoareTripleChecker+Invalid, 5741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2990 IncrementalHoareTripleChecker+Valid, 2749 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2022-07-14 01:19:22,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6421 Valid, 5735 Invalid, 5741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2990 Valid, 2749 Invalid, 2 Unknown, 0 Unchecked, 10.5s Time] [2022-07-14 01:19:22,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6236 states. [2022-07-14 01:19:22,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6236 to 4619. [2022-07-14 01:19:22,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4619 states, 3213 states have (on average 1.2978524743230626) internal successors, (4170), 3303 states have internal predecessors, (4170), 1084 states have call successors, (1084), 322 states have call predecessors, (1084), 321 states have return successors, (1079), 1057 states have call predecessors, (1079), 1079 states have call successors, (1079) [2022-07-14 01:19:22,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4619 states to 4619 states and 6333 transitions. [2022-07-14 01:19:22,402 INFO L78 Accepts]: Start accepts. Automaton has 4619 states and 6333 transitions. Word has length 87 [2022-07-14 01:19:22,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:19:22,403 INFO L495 AbstractCegarLoop]: Abstraction has 4619 states and 6333 transitions. [2022-07-14 01:19:22,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-14 01:19:22,403 INFO L276 IsEmpty]: Start isEmpty. Operand 4619 states and 6333 transitions. [2022-07-14 01:19:22,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-07-14 01:19:22,407 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:19:22,407 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:19:22,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-14 01:19:22,407 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:19:22,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:19:22,408 INFO L85 PathProgramCache]: Analyzing trace with hash 244158121, now seen corresponding path program 1 times [2022-07-14 01:19:22,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:19:22,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580064100] [2022-07-14 01:19:22,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:19:22,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:19:22,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:19:22,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:19:22,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:19:22,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:19:22,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:19:22,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:19:22,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:19:22,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 01:19:22,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:19:22,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:19:22,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:19:22,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-14 01:19:22,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:19:22,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:19:22,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:19:22,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-14 01:19:22,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:19:22,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:19:22,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:19:22,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-14 01:19:22,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:19:22,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:19:22,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:19:22,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-14 01:19:22,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:19:22,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-14 01:19:22,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:19:22,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-14 01:19:22,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:19:22,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-14 01:19:22,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:19:22,712 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-07-14 01:19:22,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:19:22,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580064100] [2022-07-14 01:19:22,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580064100] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:19:22,713 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:19:22,713 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 01:19:22,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199088122] [2022-07-14 01:19:22,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:19:22,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 01:19:22,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:19:22,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 01:19:22,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 01:19:22,715 INFO L87 Difference]: Start difference. First operand 4619 states and 6333 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (15), 7 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-14 01:19:27,679 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:19:33,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:19:33,028 INFO L93 Difference]: Finished difference Result 6881 states and 10204 transitions. [2022-07-14 01:19:33,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-14 01:19:33,029 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (15), 7 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 106 [2022-07-14 01:19:33,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:19:33,084 INFO L225 Difference]: With dead ends: 6881 [2022-07-14 01:19:33,085 INFO L226 Difference]: Without dead ends: 6860 [2022-07-14 01:19:33,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-07-14 01:19:33,088 INFO L413 NwaCegarLoop]: 2718 mSDtfsCounter, 5712 mSDsluCounter, 2817 mSDsCounter, 0 mSdLazyCounter, 5335 mSolverCounterSat, 4556 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5993 SdHoareTripleChecker+Valid, 5535 SdHoareTripleChecker+Invalid, 9892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4556 IncrementalHoareTripleChecker+Valid, 5335 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2022-07-14 01:19:33,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5993 Valid, 5535 Invalid, 9892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4556 Valid, 5335 Invalid, 1 Unknown, 0 Unchecked, 9.9s Time] [2022-07-14 01:19:33,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6860 states. [2022-07-14 01:19:33,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6860 to 4600. [2022-07-14 01:19:33,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4600 states, 3205 states have (on average 1.2973478939157566) internal successors, (4158), 3292 states have internal predecessors, (4158), 1073 states have call successors, (1073), 322 states have call predecessors, (1073), 321 states have return successors, (1071), 1049 states have call predecessors, (1071), 1071 states have call successors, (1071) [2022-07-14 01:19:33,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4600 states to 4600 states and 6302 transitions. [2022-07-14 01:19:33,294 INFO L78 Accepts]: Start accepts. Automaton has 4600 states and 6302 transitions. Word has length 106 [2022-07-14 01:19:33,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:19:33,294 INFO L495 AbstractCegarLoop]: Abstraction has 4600 states and 6302 transitions. [2022-07-14 01:19:33,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (15), 7 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-14 01:19:33,295 INFO L276 IsEmpty]: Start isEmpty. Operand 4600 states and 6302 transitions. [2022-07-14 01:19:33,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-07-14 01:19:33,303 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:19:33,303 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:19:33,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-14 01:19:33,303 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:19:33,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:19:33,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1315434094, now seen corresponding path program 1 times [2022-07-14 01:19:33,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:19:33,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524161540] [2022-07-14 01:19:33,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:19:33,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:19:33,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:19:33,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:19:33,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:19:33,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:19:33,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:19:33,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:19:33,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:19:33,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 01:19:33,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:19:33,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:19:33,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:19:33,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-14 01:19:33,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:19:33,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:19:33,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:19:33,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-14 01:19:33,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:19:33,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:19:33,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:19:33,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-14 01:19:33,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:19:33,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:19:33,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:19:33,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-14 01:19:33,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:19:33,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-14 01:19:33,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:19:33,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-14 01:19:33,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:19:33,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-14 01:19:33,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:19:33,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-14 01:19:33,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:19:33,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-14 01:19:33,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:19:33,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-14 01:19:33,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:19:33,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-14 01:19:33,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:19:33,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-14 01:19:33,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:19:33,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-14 01:19:33,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:19:33,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-14 01:19:33,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:19:33,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-14 01:19:33,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:19:33,755 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-07-14 01:19:33,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:19:33,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524161540] [2022-07-14 01:19:33,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524161540] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:19:33,756 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:19:33,756 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-14 01:19:33,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430023184] [2022-07-14 01:19:33,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:19:33,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-14 01:19:33,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:19:33,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 01:19:33,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-14 01:19:33,758 INFO L87 Difference]: Start difference. First operand 4600 states and 6302 transitions. Second operand has 8 states, 8 states have (on average 11.125) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (28), 8 states have call predecessors, (28), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-14 01:19:38,060 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:19:40,128 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:19:42,206 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:19:46,260 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:19:55,777 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:19:57,852 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:19:59,929 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:20:00,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:20:00,479 INFO L93 Difference]: Finished difference Result 6921 states and 10233 transitions. [2022-07-14 01:20:00,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-14 01:20:00,479 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (28), 8 states have call predecessors, (28), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 169 [2022-07-14 01:20:00,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:20:00,506 INFO L225 Difference]: With dead ends: 6921 [2022-07-14 01:20:00,506 INFO L226 Difference]: Without dead ends: 6918 [2022-07-14 01:20:00,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 49 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2022-07-14 01:20:00,512 INFO L413 NwaCegarLoop]: 2764 mSDtfsCounter, 7490 mSDsluCounter, 2630 mSDsCounter, 0 mSdLazyCounter, 8494 mSolverCounterSat, 5777 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7606 SdHoareTripleChecker+Valid, 5394 SdHoareTripleChecker+Invalid, 14277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5777 IncrementalHoareTripleChecker+Valid, 8494 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.1s IncrementalHoareTripleChecker+Time [2022-07-14 01:20:00,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7606 Valid, 5394 Invalid, 14277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5777 Valid, 8494 Invalid, 6 Unknown, 0 Unchecked, 26.1s Time] [2022-07-14 01:20:00,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6918 states. [2022-07-14 01:20:00,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6918 to 4599. [2022-07-14 01:20:00,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4599 states, 3205 states have (on average 1.2967238689547582) internal successors, (4156), 3291 states have internal predecessors, (4156), 1072 states have call successors, (1072), 322 states have call predecessors, (1072), 321 states have return successors, (1071), 1049 states have call predecessors, (1071), 1071 states have call successors, (1071) [2022-07-14 01:20:00,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4599 states to 4599 states and 6299 transitions. [2022-07-14 01:20:00,762 INFO L78 Accepts]: Start accepts. Automaton has 4599 states and 6299 transitions. Word has length 169 [2022-07-14 01:20:00,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:20:00,763 INFO L495 AbstractCegarLoop]: Abstraction has 4599 states and 6299 transitions. [2022-07-14 01:20:00,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (28), 8 states have call predecessors, (28), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-14 01:20:00,763 INFO L276 IsEmpty]: Start isEmpty. Operand 4599 states and 6299 transitions. [2022-07-14 01:20:00,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-14 01:20:00,775 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:20:00,775 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:20:00,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-14 01:20:00,776 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:20:00,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:20:00,776 INFO L85 PathProgramCache]: Analyzing trace with hash 402287534, now seen corresponding path program 1 times [2022-07-14 01:20:00,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:20:00,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366944474] [2022-07-14 01:20:00,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:20:00,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:20:00,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:00,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:20:00,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:01,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:01,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:01,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:20:01,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:01,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 01:20:01,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:01,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:01,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:01,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-14 01:20:01,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:01,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:01,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:01,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-14 01:20:01,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:01,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:01,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:01,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-14 01:20:01,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:01,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:20:01,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:01,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-14 01:20:01,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:01,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-14 01:20:01,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:01,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-14 01:20:01,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:01,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-14 01:20:01,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:01,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-14 01:20:01,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:01,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-14 01:20:01,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:01,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-14 01:20:01,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:01,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-14 01:20:01,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:01,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-14 01:20:01,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:01,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-14 01:20:01,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:01,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-14 01:20:01,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:01,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-14 01:20:01,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:01,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-14 01:20:01,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:01,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-14 01:20:01,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:01,284 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-07-14 01:20:01,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:20:01,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366944474] [2022-07-14 01:20:01,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366944474] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 01:20:01,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [630864179] [2022-07-14 01:20:01,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:20:01,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 01:20:01,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 01:20:01,287 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 01:20:01,303 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-14 01:20:02,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:20:02,225 INFO L263 TraceCheckSpWp]: Trace formula consists of 3297 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-14 01:20:02,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 01:20:02,335 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2022-07-14 01:20:02,335 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 01:20:02,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [630864179] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:20:02,335 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 01:20:02,335 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [13] total 14 [2022-07-14 01:20:02,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509355816] [2022-07-14 01:20:02,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:20:02,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 01:20:02,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:20:02,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 01:20:02,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-07-14 01:20:02,337 INFO L87 Difference]: Start difference. First operand 4599 states and 6299 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-14 01:20:02,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:20:02,512 INFO L93 Difference]: Finished difference Result 4599 states and 6299 transitions. [2022-07-14 01:20:02,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 01:20:02,513 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 189 [2022-07-14 01:20:02,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:20:02,515 INFO L225 Difference]: With dead ends: 4599 [2022-07-14 01:20:02,515 INFO L226 Difference]: Without dead ends: 0 [2022-07-14 01:20:02,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-07-14 01:20:02,530 INFO L413 NwaCegarLoop]: 3247 mSDtfsCounter, 68 mSDsluCounter, 3167 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 6414 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 01:20:02,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 6414 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 01:20:02,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-14 01:20:02,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-14 01:20:02,531 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) [2022-07-14 01:20:02,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-14 01:20:02,532 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 189 [2022-07-14 01:20:02,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:20:02,532 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-14 01:20:02,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-14 01:20:02,532 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-14 01:20:02,532 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-14 01:20:02,536 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-14 01:20:02,564 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-14 01:20:02,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-07-14 01:20:02,749 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-14 01:20:13,318 WARN L233 SmtUtils]: Spent 10.55s on a formula simplification. DAG size of input: 71 DAG size of output: 68 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-07-14 01:20:23,519 WARN L233 SmtUtils]: Spent 10.20s on a formula simplification. DAG size of input: 71 DAG size of output: 68 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-07-14 01:20:33,689 WARN L233 SmtUtils]: Spent 10.17s on a formula simplification. DAG size of input: 71 DAG size of output: 68 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-07-14 01:20:44,369 WARN L233 SmtUtils]: Spent 10.68s on a formula simplification. DAG size of input: 67 DAG size of output: 64 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-07-14 01:20:54,924 WARN L233 SmtUtils]: Spent 10.55s on a formula simplification. DAG size of input: 67 DAG size of output: 64 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-07-14 01:21:05,027 WARN L233 SmtUtils]: Spent 10.10s on a formula simplification. DAG size of input: 71 DAG size of output: 68 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-07-14 01:21:15,664 WARN L233 SmtUtils]: Spent 10.64s on a formula simplification. DAG size of input: 67 DAG size of output: 64 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-07-14 01:21:25,868 WARN L233 SmtUtils]: Spent 10.20s on a formula simplification. DAG size of input: 71 DAG size of output: 68 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or)