./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 35987657 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-?-3598765 [2022-07-21 12:09:44,003 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 12:09:44,006 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 12:09:44,040 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 12:09:44,041 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 12:09:44,042 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 12:09:44,045 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 12:09:44,047 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 12:09:44,048 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 12:09:44,052 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 12:09:44,052 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 12:09:44,056 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 12:09:44,056 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 12:09:44,058 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 12:09:44,058 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 12:09:44,061 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 12:09:44,061 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 12:09:44,062 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 12:09:44,064 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 12:09:44,068 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 12:09:44,069 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 12:09:44,070 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 12:09:44,071 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 12:09:44,071 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 12:09:44,072 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 12:09:44,077 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 12:09:44,078 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 12:09:44,078 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 12:09:44,079 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 12:09:44,079 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 12:09:44,079 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 12:09:44,080 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 12:09:44,081 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 12:09:44,082 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 12:09:44,083 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 12:09:44,083 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 12:09:44,083 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 12:09:44,084 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 12:09:44,084 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 12:09:44,084 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 12:09:44,085 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 12:09:44,086 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 12:09:44,090 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 12:09:44,115 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 12:09:44,115 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 12:09:44,116 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 12:09:44,116 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 12:09:44,117 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 12:09:44,117 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 12:09:44,117 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 12:09:44,117 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 12:09:44,118 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 12:09:44,136 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 12:09:44,136 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 12:09:44,136 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 12:09:44,137 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 12:09:44,137 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 12:09:44,137 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 12:09:44,137 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 12:09:44,137 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 12:09:44,137 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 12:09:44,138 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 12:09:44,138 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 12:09:44,138 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 12:09:44,138 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 12:09:44,138 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 12:09:44,138 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 12:09:44,138 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 12:09:44,139 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 12:09:44,139 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 12:09:44,139 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 12:09:44,139 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 12:09:44,139 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 12:09:44,139 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d57db9f03a5170fd6970a4ac4989029ee35a0e85ad6a1c5337395bb7ff185d1b [2022-07-21 12:09:44,409 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 12:09:44,427 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 12:09:44,429 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 12:09:44,429 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 12:09:44,430 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 12:09:44,431 INFO L432 ainManager$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 [2022-07-21 12:09:44,492 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d0d6b6c2/a8abfed1ce8f4bac8fe59393bf6f8b9c/FLAGcd69f66f0 [2022-07-21 12:09:45,281 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 12:09:45,281 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 [2022-07-21 12:09:45,332 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d0d6b6c2/a8abfed1ce8f4bac8fe59393bf6f8b9c/FLAGcd69f66f0 [2022-07-21 12:09:45,770 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d0d6b6c2/a8abfed1ce8f4bac8fe59393bf6f8b9c [2022-07-21 12:09:45,772 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 12:09:45,773 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 12:09:45,775 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 12:09:45,776 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 12:09:45,778 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 12:09:45,778 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:09:45" (1/1) ... [2022-07-21 12:09:45,779 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bdf510c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:09:45, skipping insertion in model container [2022-07-21 12:09:45,779 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:09:45" (1/1) ... [2022-07-21 12:09:45,784 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 12:09:45,918 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 12:09:48,582 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] [2022-07-21 12:09:48,821 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 12:09:48,890 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 12:09:49,638 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] [2022-07-21 12:09:49,652 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 12:09:49,767 INFO L208 MainTranslator]: Completed translation [2022-07-21 12:09:49,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:09:49 WrapperNode [2022-07-21 12:09:49,767 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 12:09:49,768 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 12:09:49,768 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 12:09:49,769 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 12:09:49,774 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:09:49" (1/1) ... [2022-07-21 12:09:49,843 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:09:49" (1/1) ... [2022-07-21 12:09:49,990 INFO L137 Inliner]: procedures = 483, calls = 2853, calls flagged for inlining = 237, calls inlined = 184, statements flattened = 6966 [2022-07-21 12:09:49,990 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 12:09:49,991 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 12:09:49,992 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 12:09:49,992 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 12:09:49,998 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:09:49" (1/1) ... [2022-07-21 12:09:49,998 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:09:49" (1/1) ... [2022-07-21 12:09:50,040 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:09:49" (1/1) ... [2022-07-21 12:09:50,041 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:09:49" (1/1) ... [2022-07-21 12:09:50,147 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:09:49" (1/1) ... [2022-07-21 12:09:50,252 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:09:49" (1/1) ... [2022-07-21 12:09:50,296 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:09:49" (1/1) ... [2022-07-21 12:09:50,325 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 12:09:50,326 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 12:09:50,326 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 12:09:50,326 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 12:09:50,327 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:09:49" (1/1) ... [2022-07-21 12:09:50,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 12:09:50,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 12:09:50,349 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) [2022-07-21 12:09:50,366 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 [2022-07-21 12:09:50,392 INFO L130 BoogieDeclarations]: Found specification of procedure ib_wc_status_msg [2022-07-21 12:09:50,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_wc_status_msg [2022-07-21 12:09:50,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-21 12:09:50,393 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-21 12:09:50,393 INFO L130 BoogieDeclarations]: Found specification of procedure isert_setup_id [2022-07-21 12:09:50,393 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_setup_id [2022-07-21 12:09:50,393 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 12:09:50,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 12:09:50,394 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_isert_conn [2022-07-21 12:09:50,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_isert_conn [2022-07-21 12:09:50,394 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2022-07-21 12:09:50,394 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2022-07-21 12:09:50,394 INFO L130 BoogieDeclarations]: Found specification of procedure dump_stack [2022-07-21 12:09:50,394 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_stack [2022-07-21 12:09:50,394 INFO L130 BoogieDeclarations]: Found specification of procedure iscsit_stop_dataout_timer [2022-07-21 12:09:50,394 INFO L138 BoogieDeclarations]: Found implementation of procedure iscsit_stop_dataout_timer [2022-07-21 12:09:50,395 INFO L130 BoogieDeclarations]: Found specification of procedure rdma_destroy_id [2022-07-21 12:09:50,395 INFO L138 BoogieDeclarations]: Found implementation of procedure rdma_destroy_id [2022-07-21 12:09:50,395 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2022-07-21 12:09:50,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2022-07-21 12:09:50,395 INFO L130 BoogieDeclarations]: Found specification of procedure isert_cq_work [2022-07-21 12:09:50,395 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_cq_work [2022-07-21 12:09:50,395 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-21 12:09:50,395 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-21 12:09:50,395 INFO L130 BoogieDeclarations]: Found specification of procedure ib_post_recv [2022-07-21 12:09:50,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_post_recv [2022-07-21 12:09:50,396 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_sync_single_for_device [2022-07-21 12:09:50,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_sync_single_for_device [2022-07-21 12:09:50,396 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-21 12:09:50,396 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-21 12:09:50,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_isert_conn [2022-07-21 12:09:50,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_isert_conn [2022-07-21 12:09:50,396 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_unmap_single [2022-07-21 12:09:50,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_unmap_single [2022-07-21 12:09:50,397 INFO L130 BoogieDeclarations]: Found specification of procedure isert_init_send_wr [2022-07-21 12:09:50,397 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_init_send_wr [2022-07-21 12:09:50,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_np_accept_mutex_of_isert_np [2022-07-21 12:09:50,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_np_accept_mutex_of_isert_np [2022-07-21 12:09:50,398 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-21 12:09:50,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-21 12:09:50,398 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-21 12:09:50,398 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-21 12:09:50,398 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_np_accept_mutex_of_isert_np [2022-07-21 12:09:50,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_np_accept_mutex_of_isert_np [2022-07-21 12:09:50,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 12:09:50,399 INFO L130 BoogieDeclarations]: Found specification of procedure ib_sg_dma_address [2022-07-21 12:09:50,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_sg_dma_address [2022-07-21 12:09:50,399 INFO L130 BoogieDeclarations]: Found specification of procedure isert_wait_conn [2022-07-21 12:09:50,399 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_wait_conn [2022-07-21 12:09:50,399 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u64~0~X~int~X~int~TO~VOID [2022-07-21 12:09:50,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u64~0~X~int~X~int~TO~VOID [2022-07-21 12:09:50,399 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-07-21 12:09:50,400 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-07-21 12:09:50,400 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-07-21 12:09:50,400 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-07-21 12:09:50,400 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_map_single [2022-07-21 12:09:50,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_map_single [2022-07-21 12:09:50,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-21 12:09:50,401 INFO L130 BoogieDeclarations]: Found specification of procedure isert_conn_terminate [2022-07-21 12:09:50,402 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_conn_terminate [2022-07-21 12:09:50,402 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-21 12:09:50,402 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-21 12:09:50,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-21 12:09:50,402 INFO L130 BoogieDeclarations]: Found specification of procedure isert_prot_cmd [2022-07-21 12:09:50,402 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_prot_cmd [2022-07-21 12:09:50,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-21 12:09:50,402 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-21 12:09:50,403 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-21 12:09:50,403 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_interruptible [2022-07-21 12:09:50,403 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_interruptible [2022-07-21 12:09:50,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-21 12:09:50,403 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-21 12:09:50,403 INFO L130 BoogieDeclarations]: Found specification of procedure isert_release_work [2022-07-21 12:09:50,404 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_release_work [2022-07-21 12:09:50,404 INFO L130 BoogieDeclarations]: Found specification of procedure isert_free_np [2022-07-21 12:09:50,404 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_free_np [2022-07-21 12:09:50,404 INFO L130 BoogieDeclarations]: Found specification of procedure isert_comp_put [2022-07-21 12:09:50,404 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_comp_put [2022-07-21 12:09:50,404 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-07-21 12:09:50,404 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-07-21 12:09:50,405 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2022-07-21 12:09:50,405 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2022-07-21 12:09:50,405 INFO L130 BoogieDeclarations]: Found specification of procedure sg_next [2022-07-21 12:09:50,405 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_next [2022-07-21 12:09:50,405 INFO L130 BoogieDeclarations]: Found specification of procedure sg_copy_from_buffer [2022-07-21 12:09:50,405 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_copy_from_buffer [2022-07-21 12:09:50,405 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-21 12:09:50,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-21 12:09:50,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 12:09:50,406 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2022-07-21 12:09:50,406 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2022-07-21 12:09:50,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 12:09:50,406 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2022-07-21 12:09:50,406 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2022-07-21 12:09:50,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 12:09:50,407 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-21 12:09:50,407 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 12:09:50,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 12:09:50,408 INFO L130 BoogieDeclarations]: Found specification of procedure isert_completion_put [2022-07-21 12:09:50,408 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_completion_put [2022-07-21 12:09:50,408 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-07-21 12:09:50,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-07-21 12:09:50,409 INFO L130 BoogieDeclarations]: Found specification of procedure isert_unmap_data_buf [2022-07-21 12:09:50,409 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_unmap_data_buf [2022-07-21 12:09:50,409 INFO L130 BoogieDeclarations]: Found specification of procedure isert_inv_rkey [2022-07-21 12:09:50,409 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_inv_rkey [2022-07-21 12:09:50,409 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-07-21 12:09:50,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-07-21 12:09:50,409 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_sync_single_for_cpu [2022-07-21 12:09:50,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_sync_single_for_cpu [2022-07-21 12:09:50,410 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-21 12:09:50,410 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-21 12:09:50,410 INFO L130 BoogieDeclarations]: Found specification of procedure isert_allocate_cmd [2022-07-21 12:09:50,410 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_allocate_cmd [2022-07-21 12:09:50,410 INFO L130 BoogieDeclarations]: Found specification of procedure isert_do_control_comp [2022-07-21 12:09:50,410 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_do_control_comp [2022-07-21 12:09:50,410 INFO L130 BoogieDeclarations]: Found specification of procedure isert_put_conn [2022-07-21 12:09:50,411 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_put_conn [2022-07-21 12:09:50,411 INFO L130 BoogieDeclarations]: Found specification of procedure isert_connect_release [2022-07-21 12:09:50,413 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_connect_release [2022-07-21 12:09:50,413 INFO L130 BoogieDeclarations]: Found specification of procedure isert_free_comps [2022-07-21 12:09:50,413 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_free_comps [2022-07-21 12:09:50,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 12:09:50,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 12:09:50,415 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-07-21 12:09:50,415 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-07-21 12:09:50,415 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-21 12:09:50,415 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-21 12:09:50,419 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-07-21 12:09:50,420 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-07-21 12:09:50,420 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2022-07-21 12:09:50,420 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2022-07-21 12:09:50,420 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-21 12:09:50,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-21 12:09:50,420 INFO L130 BoogieDeclarations]: Found specification of procedure isert_device_put [2022-07-21 12:09:50,420 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_device_put [2022-07-21 12:09:50,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-21 12:09:50,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-21 12:09:50,421 INFO L130 BoogieDeclarations]: Found specification of procedure isert_map_data_buf [2022-07-21 12:09:50,421 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_map_data_buf [2022-07-21 12:09:50,421 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-21 12:09:50,421 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-21 12:09:50,421 INFO L130 BoogieDeclarations]: Found specification of procedure isert_free_conn [2022-07-21 12:09:50,421 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_free_conn [2022-07-21 12:09:50,421 INFO L130 BoogieDeclarations]: Found specification of procedure ib_post_send [2022-07-21 12:09:50,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_post_send [2022-07-21 12:09:50,422 INFO L130 BoogieDeclarations]: Found specification of procedure isert_init_tx_hdrs [2022-07-21 12:09:50,422 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_init_tx_hdrs [2022-07-21 12:09:50,422 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2022-07-21 12:09:50,422 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2022-07-21 12:09:50,422 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-07-21 12:09:50,422 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-07-21 12:09:50,422 INFO L130 BoogieDeclarations]: Found specification of procedure ib_free_fast_reg_page_list [2022-07-21 12:09:50,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_free_fast_reg_page_list [2022-07-21 12:09:50,423 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-07-21 12:09:50,423 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-07-21 12:09:50,423 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-21 12:09:50,423 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-21 12:09:50,423 INFO L130 BoogieDeclarations]: Found specification of procedure isert_aborted_task [2022-07-21 12:09:50,423 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_aborted_task [2022-07-21 12:09:50,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-21 12:09:50,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-21 12:09:50,424 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2022-07-21 12:09:50,424 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2022-07-21 12:09:50,424 INFO L130 BoogieDeclarations]: Found specification of procedure isert_put_response [2022-07-21 12:09:50,424 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_put_response [2022-07-21 12:09:50,424 INFO L130 BoogieDeclarations]: Found specification of procedure isert_wait4flush [2022-07-21 12:09:50,424 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_wait4flush [2022-07-21 12:09:50,424 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-21 12:09:50,424 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-21 12:09:50,425 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-21 12:09:50,425 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-21 12:09:50,425 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-07-21 12:09:50,425 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-07-21 12:09:50,425 INFO L130 BoogieDeclarations]: Found specification of procedure isert_free_login_buf [2022-07-21 12:09:50,425 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_free_login_buf [2022-07-21 12:09:50,425 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-07-21 12:09:50,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-07-21 12:09:50,426 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-07-21 12:09:50,426 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-07-21 12:09:50,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 12:09:50,426 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-21 12:09:50,426 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-21 12:09:50,426 INFO L130 BoogieDeclarations]: Found specification of procedure iscsit_priv_cmd [2022-07-21 12:09:50,426 INFO L138 BoogieDeclarations]: Found implementation of procedure iscsit_priv_cmd [2022-07-21 12:09:50,426 INFO L130 BoogieDeclarations]: Found specification of procedure isert_put_nopin [2022-07-21 12:09:50,427 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_put_nopin [2022-07-21 12:09:50,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 12:09:50,427 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2022-07-21 12:09:50,431 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2022-07-21 12:09:50,431 INFO L130 BoogieDeclarations]: Found specification of procedure isert_reg_rdma [2022-07-21 12:09:50,431 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_reg_rdma [2022-07-21 12:09:50,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 12:09:50,431 INFO L130 BoogieDeclarations]: Found specification of procedure isert_post_recv [2022-07-21 12:09:50,431 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_post_recv [2022-07-21 12:09:50,431 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-07-21 12:09:50,431 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-07-21 12:09:50,431 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-21 12:09:50,431 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-21 12:09:50,431 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-07-21 12:09:50,431 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-07-21 12:09:50,431 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-07-21 12:09:50,431 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-07-21 12:09:50,432 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-21 12:09:50,432 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-21 12:09:50,432 INFO L130 BoogieDeclarations]: Found specification of procedure isert_rdma_post_recvl [2022-07-21 12:09:50,432 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_rdma_post_recvl [2022-07-21 12:09:50,432 INFO L130 BoogieDeclarations]: Found specification of procedure isert_conn_free_fastreg_pool [2022-07-21 12:09:50,432 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_conn_free_fastreg_pool [2022-07-21 12:09:50,432 INFO L130 BoogieDeclarations]: Found specification of procedure transport_send_check_condition_and_sense [2022-07-21 12:09:50,432 INFO L138 BoogieDeclarations]: Found implementation of procedure transport_send_check_condition_and_sense [2022-07-21 12:09:50,432 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-07-21 12:09:50,432 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-07-21 12:09:50,432 INFO L130 BoogieDeclarations]: Found specification of procedure isert_reg_sig_mr [2022-07-21 12:09:50,432 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_reg_sig_mr [2022-07-21 12:09:50,432 INFO L130 BoogieDeclarations]: Found specification of procedure transport_generic_free_cmd [2022-07-21 12:09:50,432 INFO L138 BoogieDeclarations]: Found implementation of procedure transport_generic_free_cmd [2022-07-21 12:09:50,432 INFO L130 BoogieDeclarations]: Found specification of procedure isert_unmap_tx_desc [2022-07-21 12:09:50,432 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_unmap_tx_desc [2022-07-21 12:09:50,432 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-07-21 12:09:50,432 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-07-21 12:09:50,432 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_device_list_mutex [2022-07-21 12:09:50,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_device_list_mutex [2022-07-21 12:09:50,432 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_device_list_mutex [2022-07-21 12:09:50,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_device_list_mutex [2022-07-21 12:09:50,433 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_weight [2022-07-21 12:09:50,433 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_weight [2022-07-21 12:09:50,433 INFO L130 BoogieDeclarations]: Found specification of procedure isert_handle_prot_cmd [2022-07-21 12:09:50,433 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_handle_prot_cmd [2022-07-21 12:09:50,433 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dereg_mr [2022-07-21 12:09:50,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dereg_mr [2022-07-21 12:09:50,433 INFO L130 BoogieDeclarations]: Found specification of procedure ib_req_notify_cq [2022-07-21 12:09:50,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_req_notify_cq [2022-07-21 12:09:50,433 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-21 12:09:50,433 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-21 12:09:50,433 INFO L130 BoogieDeclarations]: Found specification of procedure isert_check_pi_status [2022-07-21 12:09:50,433 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_check_pi_status [2022-07-21 12:09:50,433 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2022-07-21 12:09:50,433 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2022-07-21 12:09:50,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-21 12:09:50,433 INFO L130 BoogieDeclarations]: Found specification of procedure isert_create_send_desc [2022-07-21 12:09:50,433 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_create_send_desc [2022-07-21 12:09:50,433 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-21 12:09:50,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-21 12:09:50,433 INFO L130 BoogieDeclarations]: Found specification of procedure ib_sg_dma_len [2022-07-21 12:09:50,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_sg_dma_len [2022-07-21 12:09:50,433 INFO L130 BoogieDeclarations]: Found specification of procedure isert_fast_reg_mr [2022-07-21 12:09:50,434 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_fast_reg_mr [2022-07-21 12:09:50,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-21 12:09:50,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-21 12:09:50,434 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2022-07-21 12:09:50,434 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2022-07-21 12:09:50,434 INFO L130 BoogieDeclarations]: Found specification of procedure isert_post_response [2022-07-21 12:09:50,434 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_post_response [2022-07-21 12:09:50,434 INFO L130 BoogieDeclarations]: Found specification of procedure ib_alloc_fast_reg_mr [2022-07-21 12:09:50,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_alloc_fast_reg_mr [2022-07-21 12:09:50,434 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-07-21 12:09:50,434 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-07-21 12:09:50,434 INFO L130 BoogieDeclarations]: Found specification of procedure isert_rx_login_req [2022-07-21 12:09:50,434 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_rx_login_req [2022-07-21 12:09:50,434 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2022-07-21 12:09:50,434 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2022-07-21 12:09:50,434 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_mapping_error [2022-07-21 12:09:50,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_mapping_error [2022-07-21 12:09:50,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 12:09:50,434 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-07-21 12:09:50,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-07-21 12:09:50,434 INFO L130 BoogieDeclarations]: Found specification of procedure target_put_sess_cmd [2022-07-21 12:09:50,434 INFO L138 BoogieDeclarations]: Found implementation of procedure target_put_sess_cmd [2022-07-21 12:09:50,434 INFO L130 BoogieDeclarations]: Found specification of procedure isert_set_dif_domain [2022-07-21 12:09:50,434 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_set_dif_domain [2022-07-21 12:09:50,434 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2022-07-21 12:09:50,435 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2022-07-21 12:09:50,435 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dealloc_pd [2022-07-21 12:09:50,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dealloc_pd [2022-07-21 12:09:50,435 INFO L130 BoogieDeclarations]: Found specification of procedure ib_alloc_fast_reg_page_list [2022-07-21 12:09:50,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_alloc_fast_reg_page_list [2022-07-21 12:09:50,435 INFO L130 BoogieDeclarations]: Found specification of procedure iscsit_build_rsp_pdu [2022-07-21 12:09:50,435 INFO L138 BoogieDeclarations]: Found implementation of procedure iscsit_build_rsp_pdu [2022-07-21 12:09:51,454 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 12:09:51,459 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 12:09:51,656 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-21 12:09:56,945 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 12:09:56,972 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 12:09:56,972 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 12:09:56,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:09:56 BoogieIcfgContainer [2022-07-21 12:09:56,976 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 12:09:56,977 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 12:09:56,977 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 12:09:56,979 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 12:09:56,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 12:09:45" (1/3) ... [2022-07-21 12:09:56,980 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3595da7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:09:56, skipping insertion in model container [2022-07-21 12:09:56,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:09:49" (2/3) ... [2022-07-21 12:09:56,980 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3595da7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:09:56, skipping insertion in model container [2022-07-21 12:09:56,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:09:56" (3/3) ... [2022-07-21 12:09:56,981 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 [2022-07-21 12:09:56,990 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 12:09:56,990 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 12:09:57,064 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 12:09:57,069 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@384ce6af, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1d0a6697 [2022-07-21 12:09:57,070 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 12:09:57,080 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) [2022-07-21 12:09:57,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-07-21 12:09:57,093 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:09:57,093 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] [2022-07-21 12:09:57,094 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:09:57,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:09:57,097 INFO L85 PathProgramCache]: Analyzing trace with hash 926087783, now seen corresponding path program 1 times [2022-07-21 12:09:57,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:09:57,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408204532] [2022-07-21 12:09:57,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:09:57,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:09:57,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:09:57,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:09:57,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:09:57,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:09:57,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:09:57,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:09:57,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:09:57,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 12:09:57,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:09:57,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:09:57,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:09:57,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 12:09:57,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:09:57,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:09:57,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:09:57,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 12:09:57,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:09:57,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:09:57,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:09:57,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 12:09:57,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:09:57,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:09:57,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:09:57,802 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-07-21 12:09:57,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:09:57,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408204532] [2022-07-21 12:09:57,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408204532] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:09:57,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:09:57,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 12:09:57,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868485685] [2022-07-21 12:09:57,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:09:57,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 12:09:57,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:09:57,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 12:09:57,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 12:09:57,838 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) [2022-07-21 12:10:00,337 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 [] [2022-07-21 12:10:02,358 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:10:06,456 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:10:08,520 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:10:13,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:10:13,269 INFO L93 Difference]: Finished difference Result 5481 states and 8253 transitions. [2022-07-21 12:10:13,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 12:10:13,271 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 [2022-07-21 12:10:13,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:10:13,315 INFO L225 Difference]: With dead ends: 5481 [2022-07-21 12:10:13,316 INFO L226 Difference]: Without dead ends: 3105 [2022-07-21 12:10:13,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-07-21 12:10:13,337 INFO L413 NwaCegarLoop]: 2998 mSDtfsCounter, 2717 mSDsluCounter, 2726 mSDsCounter, 0 mSdLazyCounter, 2298 mSolverCounterSat, 2112 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2786 SdHoareTripleChecker+Valid, 5724 SdHoareTripleChecker+Invalid, 4414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2112 IncrementalHoareTripleChecker+Valid, 2298 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.0s IncrementalHoareTripleChecker+Time [2022-07-21 12:10:13,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2786 Valid, 5724 Invalid, 4414 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2112 Valid, 2298 Invalid, 4 Unknown, 0 Unchecked, 15.0s Time] [2022-07-21 12:10:13,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3105 states. [2022-07-21 12:10:13,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3105 to 2335. [2022-07-21 12:10:13,510 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) [2022-07-21 12:10:13,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2335 states to 2335 states and 3293 transitions. [2022-07-21 12:10:13,529 INFO L78 Accepts]: Start accepts. Automaton has 2335 states and 3293 transitions. Word has length 82 [2022-07-21 12:10:13,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:10:13,530 INFO L495 AbstractCegarLoop]: Abstraction has 2335 states and 3293 transitions. [2022-07-21 12:10:13,532 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) [2022-07-21 12:10:13,532 INFO L276 IsEmpty]: Start isEmpty. Operand 2335 states and 3293 transitions. [2022-07-21 12:10:13,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-07-21 12:10:13,541 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:10:13,542 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] [2022-07-21 12:10:13,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 12:10:13,543 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:10:13,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:10:13,545 INFO L85 PathProgramCache]: Analyzing trace with hash -41262871, now seen corresponding path program 1 times [2022-07-21 12:10:13,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:10:13,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465333166] [2022-07-21 12:10:13,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:10:13,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:10:13,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:10:13,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:10:13,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:10:13,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:10:13,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:10:13,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:10:13,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:10:13,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 12:10:13,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:10:13,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:10:13,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:10:13,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 12:10:13,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:10:13,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:10:13,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:10:13,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 12:10:13,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:10:13,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:10:13,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:10:13,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 12:10:13,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:10:13,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:10:13,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:10:13,974 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-07-21 12:10:13,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:10:13,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465333166] [2022-07-21 12:10:13,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465333166] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:10:13,975 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:10:13,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 12:10:13,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467569769] [2022-07-21 12:10:13,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:10:13,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 12:10:13,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:10:13,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 12:10:13,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 12:10:13,978 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) [2022-07-21 12:10:16,282 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 [] [2022-07-21 12:10:18,322 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 [] [2022-07-21 12:10:27,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:10:27,298 INFO L93 Difference]: Finished difference Result 3124 states and 4643 transitions. [2022-07-21 12:10:27,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 12:10:27,299 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 [2022-07-21 12:10:27,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:10:27,313 INFO L225 Difference]: With dead ends: 3124 [2022-07-21 12:10:27,313 INFO L226 Difference]: Without dead ends: 3120 [2022-07-21 12:10:27,315 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 [2022-07-21 12:10:27,316 INFO L413 NwaCegarLoop]: 2944 mSDtfsCounter, 5460 mSDsluCounter, 3940 mSDsCounter, 0 mSdLazyCounter, 3141 mSolverCounterSat, 2703 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5800 SdHoareTripleChecker+Valid, 6884 SdHoareTripleChecker+Invalid, 5846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2703 IncrementalHoareTripleChecker+Valid, 3141 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.0s IncrementalHoareTripleChecker+Time [2022-07-21 12:10:27,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5800 Valid, 6884 Invalid, 5846 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2703 Valid, 3141 Invalid, 2 Unknown, 0 Unchecked, 13.0s Time] [2022-07-21 12:10:27,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3120 states. [2022-07-21 12:10:27,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3120 to 2348. [2022-07-21 12:10:27,391 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) [2022-07-21 12:10:27,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2348 states to 2348 states and 3299 transitions. [2022-07-21 12:10:27,402 INFO L78 Accepts]: Start accepts. Automaton has 2348 states and 3299 transitions. Word has length 82 [2022-07-21 12:10:27,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:10:27,403 INFO L495 AbstractCegarLoop]: Abstraction has 2348 states and 3299 transitions. [2022-07-21 12:10:27,403 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) [2022-07-21 12:10:27,403 INFO L276 IsEmpty]: Start isEmpty. Operand 2348 states and 3299 transitions. [2022-07-21 12:10:27,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-07-21 12:10:27,404 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:10:27,405 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] [2022-07-21 12:10:27,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 12:10:27,405 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:10:27,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:10:27,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1280119528, now seen corresponding path program 1 times [2022-07-21 12:10:27,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:10:27,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194877651] [2022-07-21 12:10:27,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:10:27,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:10:27,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:10:27,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:10:27,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:10:27,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:10:27,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:10:27,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:10:27,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:10:27,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 12:10:27,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:10:27,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:10:27,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:10:27,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 12:10:27,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:10:27,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:10:27,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:10:27,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 12:10:27,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:10:27,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:10:27,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:10:27,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 12:10:27,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:10:27,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:10:27,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:10:27,738 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-07-21 12:10:27,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:10:27,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194877651] [2022-07-21 12:10:27,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194877651] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:10:27,739 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:10:27,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 12:10:27,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500603953] [2022-07-21 12:10:27,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:10:27,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 12:10:27,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:10:27,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 12:10:27,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 12:10:27,742 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) [2022-07-21 12:10:30,049 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:10:32,084 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 [] [2022-07-21 12:10:38,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:10:38,397 INFO L93 Difference]: Finished difference Result 3120 states and 4638 transitions. [2022-07-21 12:10:38,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 12:10:38,397 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 [2022-07-21 12:10:38,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:10:38,414 INFO L225 Difference]: With dead ends: 3120 [2022-07-21 12:10:38,414 INFO L226 Difference]: Without dead ends: 3117 [2022-07-21 12:10:38,416 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 [2022-07-21 12:10:38,419 INFO L413 NwaCegarLoop]: 2916 mSDtfsCounter, 5519 mSDsluCounter, 2824 mSDsCounter, 0 mSdLazyCounter, 2331 mSolverCounterSat, 2719 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5862 SdHoareTripleChecker+Valid, 5740 SdHoareTripleChecker+Invalid, 5052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2719 IncrementalHoareTripleChecker+Valid, 2331 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2022-07-21 12:10:38,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5862 Valid, 5740 Invalid, 5052 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2719 Valid, 2331 Invalid, 2 Unknown, 0 Unchecked, 10.4s Time] [2022-07-21 12:10:38,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3117 states. [2022-07-21 12:10:38,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3117 to 2347. [2022-07-21 12:10:38,502 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) [2022-07-21 12:10:38,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2347 states to 2347 states and 3297 transitions. [2022-07-21 12:10:38,512 INFO L78 Accepts]: Start accepts. Automaton has 2347 states and 3297 transitions. Word has length 83 [2022-07-21 12:10:38,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:10:38,512 INFO L495 AbstractCegarLoop]: Abstraction has 2347 states and 3297 transitions. [2022-07-21 12:10:38,513 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) [2022-07-21 12:10:38,513 INFO L276 IsEmpty]: Start isEmpty. Operand 2347 states and 3297 transitions. [2022-07-21 12:10:38,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-07-21 12:10:38,515 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:10:38,516 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] [2022-07-21 12:10:38,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 12:10:38,516 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:10:38,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:10:38,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1029965364, now seen corresponding path program 1 times [2022-07-21 12:10:38,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:10:38,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214356435] [2022-07-21 12:10:38,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:10:38,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:10:38,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:10:38,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:10:38,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:10:38,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:10:38,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:10:38,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:10:38,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:10:38,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 12:10:38,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:10:38,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:10:38,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:10:38,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 12:10:38,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:10:38,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:10:38,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:10:38,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 12:10:38,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:10:38,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:10:38,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:10:38,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 12:10:38,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:10:38,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:10:38,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:10:38,814 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-07-21 12:10:38,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:10:38,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214356435] [2022-07-21 12:10:38,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214356435] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:10:38,814 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:10:38,815 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 12:10:38,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363281807] [2022-07-21 12:10:38,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:10:38,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 12:10:38,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:10:38,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 12:10:38,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 12:10:38,817 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) [2022-07-21 12:10:41,108 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 [] [2022-07-21 12:10:43,131 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 [] [2022-07-21 12:10:49,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:10:49,473 INFO L93 Difference]: Finished difference Result 3119 states and 4636 transitions. [2022-07-21 12:10:49,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 12:10:49,474 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 [2022-07-21 12:10:49,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:10:49,489 INFO L225 Difference]: With dead ends: 3119 [2022-07-21 12:10:49,489 INFO L226 Difference]: Without dead ends: 3116 [2022-07-21 12:10:49,491 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 [2022-07-21 12:10:49,493 INFO L413 NwaCegarLoop]: 2906 mSDtfsCounter, 5922 mSDsluCounter, 2685 mSDsCounter, 0 mSdLazyCounter, 2317 mSolverCounterSat, 2873 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6269 SdHoareTripleChecker+Valid, 5591 SdHoareTripleChecker+Invalid, 5192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2873 IncrementalHoareTripleChecker+Valid, 2317 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2022-07-21 12:10:49,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6269 Valid, 5591 Invalid, 5192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2873 Valid, 2317 Invalid, 2 Unknown, 0 Unchecked, 10.4s Time] [2022-07-21 12:10:49,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3116 states. [2022-07-21 12:10:49,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3116 to 2346. [2022-07-21 12:10:49,581 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) [2022-07-21 12:10:49,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2346 states to 2346 states and 3295 transitions. [2022-07-21 12:10:49,588 INFO L78 Accepts]: Start accepts. Automaton has 2346 states and 3295 transitions. Word has length 84 [2022-07-21 12:10:49,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:10:49,589 INFO L495 AbstractCegarLoop]: Abstraction has 2346 states and 3295 transitions. [2022-07-21 12:10:49,589 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) [2022-07-21 12:10:49,589 INFO L276 IsEmpty]: Start isEmpty. Operand 2346 states and 3295 transitions. [2022-07-21 12:10:49,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-07-21 12:10:49,592 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:10:49,592 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] [2022-07-21 12:10:49,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 12:10:49,592 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:10:49,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:10:49,593 INFO L85 PathProgramCache]: Analyzing trace with hash 81815386, now seen corresponding path program 1 times [2022-07-21 12:10:49,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:10:49,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123914441] [2022-07-21 12:10:49,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:10:49,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:10:49,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:10:49,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:10:49,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:10:49,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:10:49,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:10:49,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:10:49,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:10:49,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 12:10:49,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:10:49,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:10:49,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:10:49,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 12:10:49,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:10:49,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:10:49,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:10:49,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 12:10:49,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:10:49,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:10:49,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:10:49,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 12:10:49,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:10:49,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:10:49,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:10:49,836 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-07-21 12:10:49,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:10:49,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123914441] [2022-07-21 12:10:49,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123914441] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:10:49,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:10:49,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 12:10:49,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028731975] [2022-07-21 12:10:49,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:10:49,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 12:10:49,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:10:49,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 12:10:49,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 12:10:49,839 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) [2022-07-21 12:10:54,494 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 [] [2022-07-21 12:10:56,525 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 [] [2022-07-21 12:11:05,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:11:05,641 INFO L93 Difference]: Finished difference Result 8053 states and 11743 transitions. [2022-07-21 12:11:05,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 12:11:05,641 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 [2022-07-21 12:11:05,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:11:05,667 INFO L225 Difference]: With dead ends: 8053 [2022-07-21 12:11:05,668 INFO L226 Difference]: Without dead ends: 5728 [2022-07-21 12:11:05,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-21 12:11:05,677 INFO L413 NwaCegarLoop]: 3303 mSDtfsCounter, 6984 mSDsluCounter, 5017 mSDsCounter, 0 mSdLazyCounter, 4885 mSolverCounterSat, 4239 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7300 SdHoareTripleChecker+Valid, 8320 SdHoareTripleChecker+Invalid, 9126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4239 IncrementalHoareTripleChecker+Valid, 4885 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2022-07-21 12:11:05,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7300 Valid, 8320 Invalid, 9126 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4239 Valid, 4885 Invalid, 2 Unknown, 0 Unchecked, 15.3s Time] [2022-07-21 12:11:05,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5728 states. [2022-07-21 12:11:05,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5728 to 4194. [2022-07-21 12:11:05,854 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) [2022-07-21 12:11:05,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4194 states to 4194 states and 5838 transitions. [2022-07-21 12:11:05,869 INFO L78 Accepts]: Start accepts. Automaton has 4194 states and 5838 transitions. Word has length 86 [2022-07-21 12:11:05,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:11:05,869 INFO L495 AbstractCegarLoop]: Abstraction has 4194 states and 5838 transitions. [2022-07-21 12:11:05,870 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) [2022-07-21 12:11:05,870 INFO L276 IsEmpty]: Start isEmpty. Operand 4194 states and 5838 transitions. [2022-07-21 12:11:05,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-07-21 12:11:05,871 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:11:05,871 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] [2022-07-21 12:11:05,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-21 12:11:05,871 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:11:05,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:11:05,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1865116005, now seen corresponding path program 1 times [2022-07-21 12:11:05,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:11:05,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659704671] [2022-07-21 12:11:05,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:11:05,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:11:05,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:06,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:11:06,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:06,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:06,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:06,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:06,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:06,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 12:11:06,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:06,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:06,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:06,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 12:11:06,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:06,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:06,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:06,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 12:11:06,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:06,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:06,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:06,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 12:11:06,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:06,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:06,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:06,166 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-07-21 12:11:06,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:11:06,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659704671] [2022-07-21 12:11:06,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659704671] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:11:06,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:11:06,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 12:11:06,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871534115] [2022-07-21 12:11:06,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:11:06,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 12:11:06,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:11:06,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 12:11:06,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 12:11:06,168 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) [2022-07-21 12:11:10,583 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 [] [2022-07-21 12:11:12,625 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 [] [2022-07-21 12:11:18,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:11:18,760 INFO L93 Difference]: Finished difference Result 5710 states and 8452 transitions. [2022-07-21 12:11:18,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 12:11:18,760 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 [2022-07-21 12:11:18,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:11:18,799 INFO L225 Difference]: With dead ends: 5710 [2022-07-21 12:11:18,799 INFO L226 Difference]: Without dead ends: 5707 [2022-07-21 12:11:18,806 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 [2022-07-21 12:11:18,807 INFO L413 NwaCegarLoop]: 2922 mSDtfsCounter, 5878 mSDsluCounter, 2699 mSDsCounter, 0 mSdLazyCounter, 2328 mSolverCounterSat, 2849 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6225 SdHoareTripleChecker+Valid, 5621 SdHoareTripleChecker+Invalid, 5179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2849 IncrementalHoareTripleChecker+Valid, 2328 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2022-07-21 12:11:18,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6225 Valid, 5621 Invalid, 5179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2849 Valid, 2328 Invalid, 2 Unknown, 0 Unchecked, 12.2s Time] [2022-07-21 12:11:18,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5707 states. [2022-07-21 12:11:19,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5707 to 4193. [2022-07-21 12:11:19,083 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) [2022-07-21 12:11:19,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4193 states to 4193 states and 5836 transitions. [2022-07-21 12:11:19,106 INFO L78 Accepts]: Start accepts. Automaton has 4193 states and 5836 transitions. Word has length 85 [2022-07-21 12:11:19,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:11:19,107 INFO L495 AbstractCegarLoop]: Abstraction has 4193 states and 5836 transitions. [2022-07-21 12:11:19,108 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) [2022-07-21 12:11:19,108 INFO L276 IsEmpty]: Start isEmpty. Operand 4193 states and 5836 transitions. [2022-07-21 12:11:19,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-07-21 12:11:19,110 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:11:19,110 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] [2022-07-21 12:11:19,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-21 12:11:19,110 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:11:19,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:11:19,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1984977233, now seen corresponding path program 1 times [2022-07-21 12:11:19,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:11:19,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410411060] [2022-07-21 12:11:19,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:11:19,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:11:19,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:19,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:11:19,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:19,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:19,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:19,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:19,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:19,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 12:11:19,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:19,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:19,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:19,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 12:11:19,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:19,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:19,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:19,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 12:11:19,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:19,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:19,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:19,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 12:11:19,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:19,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:19,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:19,539 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-07-21 12:11:19,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:11:19,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410411060] [2022-07-21 12:11:19,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410411060] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:11:19,540 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:11:19,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 12:11:19,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652222040] [2022-07-21 12:11:19,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:11:19,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 12:11:19,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:11:19,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 12:11:19,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 12:11:19,542 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) [2022-07-21 12:11:24,999 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 [] [2022-07-21 12:11:27,034 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 [] [2022-07-21 12:11:35,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:11:35,521 INFO L93 Difference]: Finished difference Result 5729 states and 8463 transitions. [2022-07-21 12:11:35,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 12:11:35,521 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 [2022-07-21 12:11:35,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:11:35,553 INFO L225 Difference]: With dead ends: 5729 [2022-07-21 12:11:35,553 INFO L226 Difference]: Without dead ends: 5725 [2022-07-21 12:11:35,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-21 12:11:35,558 INFO L413 NwaCegarLoop]: 2923 mSDtfsCounter, 5427 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 3141 mSolverCounterSat, 2693 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5751 SdHoareTripleChecker+Valid, 6881 SdHoareTripleChecker+Invalid, 5836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2693 IncrementalHoareTripleChecker+Valid, 3141 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.4s IncrementalHoareTripleChecker+Time [2022-07-21 12:11:35,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5751 Valid, 6881 Invalid, 5836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2693 Valid, 3141 Invalid, 2 Unknown, 0 Unchecked, 15.4s Time] [2022-07-21 12:11:35,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5725 states. [2022-07-21 12:11:35,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5725 to 4209. [2022-07-21 12:11:35,804 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) [2022-07-21 12:11:35,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4209 states to 4209 states and 5843 transitions. [2022-07-21 12:11:35,824 INFO L78 Accepts]: Start accepts. Automaton has 4209 states and 5843 transitions. Word has length 86 [2022-07-21 12:11:35,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:11:35,825 INFO L495 AbstractCegarLoop]: Abstraction has 4209 states and 5843 transitions. [2022-07-21 12:11:35,825 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) [2022-07-21 12:11:35,825 INFO L276 IsEmpty]: Start isEmpty. Operand 4209 states and 5843 transitions. [2022-07-21 12:11:35,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-07-21 12:11:35,828 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:11:35,828 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] [2022-07-21 12:11:35,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-21 12:11:35,829 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:11:35,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:11:35,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1405703138, now seen corresponding path program 1 times [2022-07-21 12:11:35,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:11:35,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658732723] [2022-07-21 12:11:35,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:11:35,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:11:35,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:36,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:11:36,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:36,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:36,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:36,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:36,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:36,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 12:11:36,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:36,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:36,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:36,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 12:11:36,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:36,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:36,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:36,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 12:11:36,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:36,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:36,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:36,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 12:11:36,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:36,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:36,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:36,234 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-07-21 12:11:36,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:11:36,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658732723] [2022-07-21 12:11:36,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658732723] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:11:36,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:11:36,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 12:11:36,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656095876] [2022-07-21 12:11:36,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:11:36,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 12:11:36,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:11:36,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 12:11:36,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 12:11:36,237 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) [2022-07-21 12:11:39,995 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 [] [2022-07-21 12:11:42,101 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:11:45,899 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:11:47,939 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 [] [2022-07-21 12:11:52,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:11:52,983 INFO L93 Difference]: Finished difference Result 6256 states and 9136 transitions. [2022-07-21 12:11:52,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 12:11:52,984 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 [2022-07-21 12:11:52,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:11:53,018 INFO L225 Difference]: With dead ends: 6256 [2022-07-21 12:11:53,019 INFO L226 Difference]: Without dead ends: 6236 [2022-07-21 12:11:53,027 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 [2022-07-21 12:11:53,028 INFO L413 NwaCegarLoop]: 2968 mSDtfsCounter, 6074 mSDsluCounter, 2778 mSDsCounter, 0 mSdLazyCounter, 2765 mSolverCounterSat, 2975 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6418 SdHoareTripleChecker+Valid, 5746 SdHoareTripleChecker+Invalid, 5744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2975 IncrementalHoareTripleChecker+Valid, 2765 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.3s IncrementalHoareTripleChecker+Time [2022-07-21 12:11:53,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6418 Valid, 5746 Invalid, 5744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2975 Valid, 2765 Invalid, 4 Unknown, 0 Unchecked, 16.3s Time] [2022-07-21 12:11:53,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6236 states. [2022-07-21 12:11:53,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6236 to 4619. [2022-07-21 12:11:53,358 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) [2022-07-21 12:11:53,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4619 states to 4619 states and 6333 transitions. [2022-07-21 12:11:53,382 INFO L78 Accepts]: Start accepts. Automaton has 4619 states and 6333 transitions. Word has length 87 [2022-07-21 12:11:53,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:11:53,382 INFO L495 AbstractCegarLoop]: Abstraction has 4619 states and 6333 transitions. [2022-07-21 12:11:53,383 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) [2022-07-21 12:11:53,383 INFO L276 IsEmpty]: Start isEmpty. Operand 4619 states and 6333 transitions. [2022-07-21 12:11:53,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-07-21 12:11:53,385 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:11:53,386 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] [2022-07-21 12:11:53,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-21 12:11:53,386 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:11:53,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:11:53,387 INFO L85 PathProgramCache]: Analyzing trace with hash 244158121, now seen corresponding path program 1 times [2022-07-21 12:11:53,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:11:53,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825769780] [2022-07-21 12:11:53,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:11:53,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:11:53,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:53,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:11:53,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:53,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:53,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:53,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:11:53,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:53,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 12:11:53,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:53,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:53,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:53,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 12:11:53,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:53,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:53,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:53,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 12:11:53,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:53,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:53,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:53,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 12:11:53,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:53,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:11:53,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:53,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-21 12:11:53,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:53,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-21 12:11:53,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:53,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 12:11:53,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:53,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-21 12:11:53,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:11:53,892 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-07-21 12:11:53,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:11:53,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825769780] [2022-07-21 12:11:53,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825769780] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:11:53,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:11:53,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 12:11:53,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184418923] [2022-07-21 12:11:53,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:11:53,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 12:11:53,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:11:53,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 12:11:53,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 12:11:53,895 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) [2022-07-21 12:12:00,246 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 [] [2022-07-21 12:12:03,872 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:12:09,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:12:09,348 INFO L93 Difference]: Finished difference Result 6881 states and 10204 transitions. [2022-07-21 12:12:09,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-21 12:12:09,351 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 [2022-07-21 12:12:09,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:12:09,398 INFO L225 Difference]: With dead ends: 6881 [2022-07-21 12:12:09,398 INFO L226 Difference]: Without dead ends: 6860 [2022-07-21 12:12:09,410 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 [2022-07-21 12:12:09,411 INFO L413 NwaCegarLoop]: 2716 mSDtfsCounter, 5712 mSDsluCounter, 2820 mSDsCounter, 0 mSdLazyCounter, 5336 mSolverCounterSat, 4547 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5996 SdHoareTripleChecker+Valid, 5536 SdHoareTripleChecker+Invalid, 9884 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4547 IncrementalHoareTripleChecker+Valid, 5336 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.7s IncrementalHoareTripleChecker+Time [2022-07-21 12:12:09,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5996 Valid, 5536 Invalid, 9884 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4547 Valid, 5336 Invalid, 1 Unknown, 0 Unchecked, 14.7s Time] [2022-07-21 12:12:09,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6860 states. [2022-07-21 12:12:09,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6860 to 4600. [2022-07-21 12:12:09,719 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) [2022-07-21 12:12:09,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4600 states to 4600 states and 6302 transitions. [2022-07-21 12:12:09,739 INFO L78 Accepts]: Start accepts. Automaton has 4600 states and 6302 transitions. Word has length 106 [2022-07-21 12:12:09,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:12:09,740 INFO L495 AbstractCegarLoop]: Abstraction has 4600 states and 6302 transitions. [2022-07-21 12:12:09,740 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) [2022-07-21 12:12:09,740 INFO L276 IsEmpty]: Start isEmpty. Operand 4600 states and 6302 transitions. [2022-07-21 12:12:09,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-07-21 12:12:09,755 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:12:09,755 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] [2022-07-21 12:12:09,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-21 12:12:09,756 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:12:09,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:12:09,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1315434094, now seen corresponding path program 1 times [2022-07-21 12:12:09,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:12:09,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98852892] [2022-07-21 12:12:09,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:12:09,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:12:09,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:12:09,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:12:09,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:12:09,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:12:09,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:12:10,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:12:10,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:12:10,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 12:12:10,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:12:10,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:12:10,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:12:10,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 12:12:10,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:12:10,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:12:10,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:12:10,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 12:12:10,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:12:10,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:12:10,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:12:10,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 12:12:10,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:12:10,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:12:10,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:12:10,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-21 12:12:10,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:12:10,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-21 12:12:10,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:12:10,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 12:12:10,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:12:10,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-21 12:12:10,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:12:10,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-21 12:12:10,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:12:10,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-21 12:12:10,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:12:10,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-21 12:12:10,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:12:10,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-21 12:12:10,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:12:10,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-21 12:12:10,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:12:10,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-21 12:12:10,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:12:10,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-21 12:12:10,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:12:10,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-21 12:12:10,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:12:10,351 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-07-21 12:12:10,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:12:10,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98852892] [2022-07-21 12:12:10,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98852892] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:12:10,352 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:12:10,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 12:12:10,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077509493] [2022-07-21 12:12:10,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:12:10,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 12:12:10,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:12:10,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 12:12:10,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-21 12:12:10,354 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) [2022-07-21 12:12:15,495 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 [] [2022-07-21 12:12:18,076 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.58s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:12:22,984 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:12:25,919 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:12:33,939 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:12:36,060 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:12:38,143 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:12:38,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:12:38,773 INFO L93 Difference]: Finished difference Result 6921 states and 10233 transitions. [2022-07-21 12:12:38,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 12:12:38,774 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 [2022-07-21 12:12:38,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:12:38,821 INFO L225 Difference]: With dead ends: 6921 [2022-07-21 12:12:38,822 INFO L226 Difference]: Without dead ends: 6918 [2022-07-21 12:12:38,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 49 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2022-07-21 12:12:38,832 INFO L413 NwaCegarLoop]: 2766 mSDtfsCounter, 7489 mSDsluCounter, 2633 mSDsCounter, 0 mSdLazyCounter, 8489 mSolverCounterSat, 5790 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7602 SdHoareTripleChecker+Valid, 5399 SdHoareTripleChecker+Invalid, 14285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5790 IncrementalHoareTripleChecker+Valid, 8489 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.6s IncrementalHoareTripleChecker+Time [2022-07-21 12:12:38,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7602 Valid, 5399 Invalid, 14285 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5790 Valid, 8489 Invalid, 6 Unknown, 0 Unchecked, 27.6s Time] [2022-07-21 12:12:38,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6918 states. [2022-07-21 12:12:39,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6918 to 4599. [2022-07-21 12:12:39,126 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) [2022-07-21 12:12:39,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4599 states to 4599 states and 6299 transitions. [2022-07-21 12:12:39,145 INFO L78 Accepts]: Start accepts. Automaton has 4599 states and 6299 transitions. Word has length 169 [2022-07-21 12:12:39,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:12:39,146 INFO L495 AbstractCegarLoop]: Abstraction has 4599 states and 6299 transitions. [2022-07-21 12:12:39,146 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) [2022-07-21 12:12:39,146 INFO L276 IsEmpty]: Start isEmpty. Operand 4599 states and 6299 transitions. [2022-07-21 12:12:39,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-21 12:12:39,163 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:12:39,163 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] [2022-07-21 12:12:39,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-21 12:12:39,164 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:12:39,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:12:39,164 INFO L85 PathProgramCache]: Analyzing trace with hash 402287534, now seen corresponding path program 1 times [2022-07-21 12:12:39,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:12:39,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755703704] [2022-07-21 12:12:39,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:12:39,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:12:39,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:12:39,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:12:39,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:12:39,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:12:39,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:12:39,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:12:39,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:12:39,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 12:12:39,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:12:39,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:12:39,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:12:39,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 12:12:39,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:12:39,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:12:39,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:12:39,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 12:12:39,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:12:39,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:12:39,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:12:39,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 12:12:39,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:12:39,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:12:39,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:12:39,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-21 12:12:39,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:12:39,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-21 12:12:39,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:12:39,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 12:12:39,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:12:39,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-21 12:12:39,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:12:39,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-21 12:12:39,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:12:39,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-21 12:12:39,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:12:39,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-21 12:12:39,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:12:39,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-21 12:12:39,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:12:39,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-21 12:12:39,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:12:39,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-21 12:12:39,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:12:39,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-21 12:12:39,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:12:39,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-21 12:12:39,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:12:39,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-21 12:12:39,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:12:39,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-21 12:12:39,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:12:40,003 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-07-21 12:12:40,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:12:40,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755703704] [2022-07-21 12:12:40,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755703704] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 12:12:40,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [751928348] [2022-07-21 12:12:40,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:12:40,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 12:12:40,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 12:12:40,021 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) [2022-07-21 12:12:40,053 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-21 12:12:41,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:12:41,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 3297 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-21 12:12:41,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 12:12:41,262 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2022-07-21 12:12:41,262 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 12:12:41,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [751928348] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:12:41,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 12:12:41,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [13] total 14 [2022-07-21 12:12:41,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617746201] [2022-07-21 12:12:41,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:12:41,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 12:12:41,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:12:41,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 12:12:41,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-07-21 12:12:41,265 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) [2022-07-21 12:12:41,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:12:41,564 INFO L93 Difference]: Finished difference Result 4599 states and 6299 transitions. [2022-07-21 12:12:41,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 12:12:41,565 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 [2022-07-21 12:12:41,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:12:41,569 INFO L225 Difference]: With dead ends: 4599 [2022-07-21 12:12:41,569 INFO L226 Difference]: Without dead ends: 0 [2022-07-21 12:12:41,589 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 [2022-07-21 12:12:41,590 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 [2022-07-21 12:12:41,590 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] [2022-07-21 12:12:41,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-21 12:12:41,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-21 12:12:41,591 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) [2022-07-21 12:12:41,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-21 12:12:41,592 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 189 [2022-07-21 12:12:41,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:12:41,593 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-21 12:12:41,593 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) [2022-07-21 12:12:41,593 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-21 12:12:41,593 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-21 12:12:41,596 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-21 12:12:41,637 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-21 12:12:41,822 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 [2022-07-21 12:12:41,825 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-21 12:12:53,896 WARN L233 SmtUtils]: Spent 12.05s 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) [2022-07-21 12:13:05,472 WARN L233 SmtUtils]: Spent 11.57s 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) [2022-07-21 12:13:17,936 WARN L233 SmtUtils]: Spent 12.46s 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) [2022-07-21 12:13:30,636 WARN L233 SmtUtils]: Spent 12.70s 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) [2022-07-21 12:13:42,605 WARN L233 SmtUtils]: Spent 11.97s 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) [2022-07-21 12:13:57,414 WARN L233 SmtUtils]: Spent 14.81s 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)