./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 791161d1 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-?-791161d [2022-07-23 00:52:47,526 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 00:52:47,528 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 00:52:47,573 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 00:52:47,574 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 00:52:47,575 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 00:52:47,577 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 00:52:47,581 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 00:52:47,583 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 00:52:47,587 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 00:52:47,588 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 00:52:47,590 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 00:52:47,591 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 00:52:47,593 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 00:52:47,594 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 00:52:47,597 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 00:52:47,598 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 00:52:47,600 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 00:52:47,608 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 00:52:47,613 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 00:52:47,615 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 00:52:47,616 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 00:52:47,617 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 00:52:47,618 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 00:52:47,619 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 00:52:47,625 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 00:52:47,626 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 00:52:47,626 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 00:52:47,627 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 00:52:47,627 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 00:52:47,628 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 00:52:47,629 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 00:52:47,631 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 00:52:47,631 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 00:52:47,632 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 00:52:47,637 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 00:52:47,637 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 00:52:47,638 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 00:52:47,638 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 00:52:47,638 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 00:52:47,639 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 00:52:47,640 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 00:52:47,642 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-23 00:52:47,669 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 00:52:47,670 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 00:52:47,670 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 00:52:47,670 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 00:52:47,671 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 00:52:47,671 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 00:52:47,672 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 00:52:47,672 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 00:52:47,672 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 00:52:47,673 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 00:52:47,673 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 00:52:47,673 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 00:52:47,673 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 00:52:47,674 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 00:52:47,674 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 00:52:47,674 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 00:52:47,674 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 00:52:47,674 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 00:52:47,674 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 00:52:47,675 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 00:52:47,675 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 00:52:47,676 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 00:52:47,676 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 00:52:47,676 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 00:52:47,676 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 00:52:47,677 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 00:52:47,677 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-23 00:52:47,677 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-23 00:52:47,677 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-23 00:52:47,677 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 00:52:47,678 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d57db9f03a5170fd6970a4ac4989029ee35a0e85ad6a1c5337395bb7ff185d1b [2022-07-23 00:52:47,905 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 00:52:47,928 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 00:52:47,930 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 00:52:47,931 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 00:52:47,932 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 00:52:47,933 INFO L432 ainManager$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 [2022-07-23 00:52:47,992 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c749f4e68/47923eb26ea64008979506d3ab16ebc8/FLAG73580f182 [2022-07-23 00:52:48,835 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 00:52:48,836 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 [2022-07-23 00:52:48,902 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c749f4e68/47923eb26ea64008979506d3ab16ebc8/FLAG73580f182 [2022-07-23 00:52:49,327 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c749f4e68/47923eb26ea64008979506d3ab16ebc8 [2022-07-23 00:52:49,329 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 00:52:49,330 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 00:52:49,332 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 00:52:49,332 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 00:52:49,335 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 00:52:49,336 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 12:52:49" (1/1) ... [2022-07-23 00:52:49,336 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@91b8749 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:52:49, skipping insertion in model container [2022-07-23 00:52:49,337 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 12:52:49" (1/1) ... [2022-07-23 00:52:49,342 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 00:52:49,512 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 00:52:52,754 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] [2022-07-23 00:52:53,133 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 00:52:53,157 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 00:52:53,819 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] [2022-07-23 00:52:53,835 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 00:52:53,953 INFO L208 MainTranslator]: Completed translation [2022-07-23 00:52:53,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:52:53 WrapperNode [2022-07-23 00:52:53,956 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 00:52:53,957 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 00:52:53,957 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 00:52:53,957 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 00:52:53,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:52:53" (1/1) ... [2022-07-23 00:52:54,059 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:52:53" (1/1) ... [2022-07-23 00:52:54,247 INFO L137 Inliner]: procedures = 483, calls = 2853, calls flagged for inlining = 237, calls inlined = 184, statements flattened = 6966 [2022-07-23 00:52:54,248 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 00:52:54,249 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 00:52:54,249 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 00:52:54,249 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 00:52:54,257 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:52:53" (1/1) ... [2022-07-23 00:52:54,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:52:53" (1/1) ... [2022-07-23 00:52:54,368 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:52:53" (1/1) ... [2022-07-23 00:52:54,369 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:52:53" (1/1) ... [2022-07-23 00:52:54,474 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:52:53" (1/1) ... [2022-07-23 00:52:54,498 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:52:53" (1/1) ... [2022-07-23 00:52:54,532 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:52:53" (1/1) ... [2022-07-23 00:52:54,565 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 00:52:54,567 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 00:52:54,567 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 00:52:54,567 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 00:52:54,568 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:52:53" (1/1) ... [2022-07-23 00:52:54,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 00:52:54,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 00:52:54,601 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) [2022-07-23 00:52:54,618 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 [2022-07-23 00:52:54,645 INFO L130 BoogieDeclarations]: Found specification of procedure ib_wc_status_msg [2022-07-23 00:52:54,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_wc_status_msg [2022-07-23 00:52:54,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-23 00:52:54,646 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-23 00:52:54,646 INFO L130 BoogieDeclarations]: Found specification of procedure isert_setup_id [2022-07-23 00:52:54,646 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_setup_id [2022-07-23 00:52:54,646 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-23 00:52:54,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-23 00:52:54,646 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_isert_conn [2022-07-23 00:52:54,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_isert_conn [2022-07-23 00:52:54,647 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2022-07-23 00:52:54,647 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2022-07-23 00:52:54,647 INFO L130 BoogieDeclarations]: Found specification of procedure dump_stack [2022-07-23 00:52:54,647 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_stack [2022-07-23 00:52:54,647 INFO L130 BoogieDeclarations]: Found specification of procedure iscsit_stop_dataout_timer [2022-07-23 00:52:54,647 INFO L138 BoogieDeclarations]: Found implementation of procedure iscsit_stop_dataout_timer [2022-07-23 00:52:54,648 INFO L130 BoogieDeclarations]: Found specification of procedure rdma_destroy_id [2022-07-23 00:52:54,648 INFO L138 BoogieDeclarations]: Found implementation of procedure rdma_destroy_id [2022-07-23 00:52:54,648 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2022-07-23 00:52:54,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2022-07-23 00:52:54,648 INFO L130 BoogieDeclarations]: Found specification of procedure isert_cq_work [2022-07-23 00:52:54,648 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_cq_work [2022-07-23 00:52:54,648 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-23 00:52:54,648 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-23 00:52:54,649 INFO L130 BoogieDeclarations]: Found specification of procedure ib_post_recv [2022-07-23 00:52:54,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_post_recv [2022-07-23 00:52:54,649 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_sync_single_for_device [2022-07-23 00:52:54,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_sync_single_for_device [2022-07-23 00:52:54,649 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-23 00:52:54,649 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-23 00:52:54,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_isert_conn [2022-07-23 00:52:54,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_isert_conn [2022-07-23 00:52:54,650 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_unmap_single [2022-07-23 00:52:54,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_unmap_single [2022-07-23 00:52:54,650 INFO L130 BoogieDeclarations]: Found specification of procedure isert_init_send_wr [2022-07-23 00:52:54,650 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_init_send_wr [2022-07-23 00:52:54,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_np_accept_mutex_of_isert_np [2022-07-23 00:52:54,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_np_accept_mutex_of_isert_np [2022-07-23 00:52:54,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-23 00:52:54,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-23 00:52:54,651 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-23 00:52:54,651 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-23 00:52:54,652 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_np_accept_mutex_of_isert_np [2022-07-23 00:52:54,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_np_accept_mutex_of_isert_np [2022-07-23 00:52:54,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-23 00:52:54,652 INFO L130 BoogieDeclarations]: Found specification of procedure ib_sg_dma_address [2022-07-23 00:52:54,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_sg_dma_address [2022-07-23 00:52:54,652 INFO L130 BoogieDeclarations]: Found specification of procedure isert_wait_conn [2022-07-23 00:52:54,653 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_wait_conn [2022-07-23 00:52:54,653 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u64~0~X~int~X~int~TO~VOID [2022-07-23 00:52:54,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u64~0~X~int~X~int~TO~VOID [2022-07-23 00:52:54,653 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-07-23 00:52:54,653 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-07-23 00:52:54,654 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-07-23 00:52:54,654 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-07-23 00:52:54,654 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_map_single [2022-07-23 00:52:54,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_map_single [2022-07-23 00:52:54,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-23 00:52:54,655 INFO L130 BoogieDeclarations]: Found specification of procedure isert_conn_terminate [2022-07-23 00:52:54,656 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_conn_terminate [2022-07-23 00:52:54,656 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-23 00:52:54,656 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-23 00:52:54,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-23 00:52:54,656 INFO L130 BoogieDeclarations]: Found specification of procedure isert_prot_cmd [2022-07-23 00:52:54,656 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_prot_cmd [2022-07-23 00:52:54,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-23 00:52:54,657 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-23 00:52:54,657 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-23 00:52:54,657 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_interruptible [2022-07-23 00:52:54,657 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_interruptible [2022-07-23 00:52:54,657 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-23 00:52:54,658 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-23 00:52:54,658 INFO L130 BoogieDeclarations]: Found specification of procedure isert_release_work [2022-07-23 00:52:54,658 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_release_work [2022-07-23 00:52:54,658 INFO L130 BoogieDeclarations]: Found specification of procedure isert_free_np [2022-07-23 00:52:54,658 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_free_np [2022-07-23 00:52:54,658 INFO L130 BoogieDeclarations]: Found specification of procedure isert_comp_put [2022-07-23 00:52:54,659 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_comp_put [2022-07-23 00:52:54,659 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-07-23 00:52:54,659 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-07-23 00:52:54,659 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2022-07-23 00:52:54,659 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2022-07-23 00:52:54,659 INFO L130 BoogieDeclarations]: Found specification of procedure sg_next [2022-07-23 00:52:54,659 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_next [2022-07-23 00:52:54,660 INFO L130 BoogieDeclarations]: Found specification of procedure sg_copy_from_buffer [2022-07-23 00:52:54,660 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_copy_from_buffer [2022-07-23 00:52:54,660 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-23 00:52:54,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-23 00:52:54,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-23 00:52:54,661 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2022-07-23 00:52:54,661 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2022-07-23 00:52:54,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-23 00:52:54,661 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2022-07-23 00:52:54,662 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2022-07-23 00:52:54,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-23 00:52:54,662 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-23 00:52:54,662 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-23 00:52:54,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-23 00:52:54,663 INFO L130 BoogieDeclarations]: Found specification of procedure isert_completion_put [2022-07-23 00:52:54,663 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_completion_put [2022-07-23 00:52:54,663 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-07-23 00:52:54,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-07-23 00:52:54,664 INFO L130 BoogieDeclarations]: Found specification of procedure isert_unmap_data_buf [2022-07-23 00:52:54,664 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_unmap_data_buf [2022-07-23 00:52:54,664 INFO L130 BoogieDeclarations]: Found specification of procedure isert_inv_rkey [2022-07-23 00:52:54,664 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_inv_rkey [2022-07-23 00:52:54,664 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-07-23 00:52:54,665 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-07-23 00:52:54,665 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_sync_single_for_cpu [2022-07-23 00:52:54,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_sync_single_for_cpu [2022-07-23 00:52:54,665 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-23 00:52:54,665 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-23 00:52:54,665 INFO L130 BoogieDeclarations]: Found specification of procedure isert_allocate_cmd [2022-07-23 00:52:54,666 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_allocate_cmd [2022-07-23 00:52:54,666 INFO L130 BoogieDeclarations]: Found specification of procedure isert_do_control_comp [2022-07-23 00:52:54,666 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_do_control_comp [2022-07-23 00:52:54,666 INFO L130 BoogieDeclarations]: Found specification of procedure isert_put_conn [2022-07-23 00:52:54,667 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_put_conn [2022-07-23 00:52:54,667 INFO L130 BoogieDeclarations]: Found specification of procedure isert_connect_release [2022-07-23 00:52:54,669 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_connect_release [2022-07-23 00:52:54,669 INFO L130 BoogieDeclarations]: Found specification of procedure isert_free_comps [2022-07-23 00:52:54,669 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_free_comps [2022-07-23 00:52:54,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 00:52:54,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 00:52:54,671 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-07-23 00:52:54,671 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-07-23 00:52:54,671 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-23 00:52:54,671 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-23 00:52:54,671 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-07-23 00:52:54,671 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-07-23 00:52:54,672 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2022-07-23 00:52:54,672 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2022-07-23 00:52:54,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-23 00:52:54,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-23 00:52:54,672 INFO L130 BoogieDeclarations]: Found specification of procedure isert_device_put [2022-07-23 00:52:54,672 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_device_put [2022-07-23 00:52:54,672 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-23 00:52:54,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-23 00:52:54,673 INFO L130 BoogieDeclarations]: Found specification of procedure isert_map_data_buf [2022-07-23 00:52:54,673 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_map_data_buf [2022-07-23 00:52:54,673 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-23 00:52:54,673 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-23 00:52:54,673 INFO L130 BoogieDeclarations]: Found specification of procedure isert_free_conn [2022-07-23 00:52:54,673 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_free_conn [2022-07-23 00:52:54,673 INFO L130 BoogieDeclarations]: Found specification of procedure ib_post_send [2022-07-23 00:52:54,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_post_send [2022-07-23 00:52:54,674 INFO L130 BoogieDeclarations]: Found specification of procedure isert_init_tx_hdrs [2022-07-23 00:52:54,674 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_init_tx_hdrs [2022-07-23 00:52:54,674 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2022-07-23 00:52:54,674 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2022-07-23 00:52:54,674 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-07-23 00:52:54,674 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-07-23 00:52:54,674 INFO L130 BoogieDeclarations]: Found specification of procedure ib_free_fast_reg_page_list [2022-07-23 00:52:54,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_free_fast_reg_page_list [2022-07-23 00:52:54,675 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-07-23 00:52:54,675 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-07-23 00:52:54,675 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-23 00:52:54,675 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-23 00:52:54,675 INFO L130 BoogieDeclarations]: Found specification of procedure isert_aborted_task [2022-07-23 00:52:54,675 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_aborted_task [2022-07-23 00:52:54,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-23 00:52:54,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-23 00:52:54,676 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2022-07-23 00:52:54,676 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2022-07-23 00:52:54,676 INFO L130 BoogieDeclarations]: Found specification of procedure isert_put_response [2022-07-23 00:52:54,676 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_put_response [2022-07-23 00:52:54,676 INFO L130 BoogieDeclarations]: Found specification of procedure isert_wait4flush [2022-07-23 00:52:54,676 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_wait4flush [2022-07-23 00:52:54,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-23 00:52:54,676 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-23 00:52:54,677 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-23 00:52:54,677 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-23 00:52:54,677 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-07-23 00:52:54,677 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-07-23 00:52:54,677 INFO L130 BoogieDeclarations]: Found specification of procedure isert_free_login_buf [2022-07-23 00:52:54,677 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_free_login_buf [2022-07-23 00:52:54,677 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-07-23 00:52:54,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-07-23 00:52:54,678 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-07-23 00:52:54,678 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-07-23 00:52:54,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-23 00:52:54,678 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-23 00:52:54,678 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-23 00:52:54,678 INFO L130 BoogieDeclarations]: Found specification of procedure iscsit_priv_cmd [2022-07-23 00:52:54,678 INFO L138 BoogieDeclarations]: Found implementation of procedure iscsit_priv_cmd [2022-07-23 00:52:54,678 INFO L130 BoogieDeclarations]: Found specification of procedure isert_put_nopin [2022-07-23 00:52:54,679 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_put_nopin [2022-07-23 00:52:54,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-23 00:52:54,679 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2022-07-23 00:52:54,679 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2022-07-23 00:52:54,679 INFO L130 BoogieDeclarations]: Found specification of procedure isert_reg_rdma [2022-07-23 00:52:54,679 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_reg_rdma [2022-07-23 00:52:54,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-23 00:52:54,679 INFO L130 BoogieDeclarations]: Found specification of procedure isert_post_recv [2022-07-23 00:52:54,680 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_post_recv [2022-07-23 00:52:54,680 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-07-23 00:52:54,680 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-07-23 00:52:54,680 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-23 00:52:54,680 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-23 00:52:54,680 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-07-23 00:52:54,680 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-07-23 00:52:54,680 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-07-23 00:52:54,681 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-07-23 00:52:54,681 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-23 00:52:54,681 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-23 00:52:54,681 INFO L130 BoogieDeclarations]: Found specification of procedure isert_rdma_post_recvl [2022-07-23 00:52:54,681 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_rdma_post_recvl [2022-07-23 00:52:54,681 INFO L130 BoogieDeclarations]: Found specification of procedure isert_conn_free_fastreg_pool [2022-07-23 00:52:54,681 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_conn_free_fastreg_pool [2022-07-23 00:52:54,681 INFO L130 BoogieDeclarations]: Found specification of procedure transport_send_check_condition_and_sense [2022-07-23 00:52:54,682 INFO L138 BoogieDeclarations]: Found implementation of procedure transport_send_check_condition_and_sense [2022-07-23 00:52:54,682 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-07-23 00:52:54,682 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-07-23 00:52:54,682 INFO L130 BoogieDeclarations]: Found specification of procedure isert_reg_sig_mr [2022-07-23 00:52:54,682 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_reg_sig_mr [2022-07-23 00:52:54,682 INFO L130 BoogieDeclarations]: Found specification of procedure transport_generic_free_cmd [2022-07-23 00:52:54,682 INFO L138 BoogieDeclarations]: Found implementation of procedure transport_generic_free_cmd [2022-07-23 00:52:54,682 INFO L130 BoogieDeclarations]: Found specification of procedure isert_unmap_tx_desc [2022-07-23 00:52:54,683 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_unmap_tx_desc [2022-07-23 00:52:54,683 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-07-23 00:52:54,683 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-07-23 00:52:54,683 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_device_list_mutex [2022-07-23 00:52:54,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_device_list_mutex [2022-07-23 00:52:54,683 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_device_list_mutex [2022-07-23 00:52:54,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_device_list_mutex [2022-07-23 00:52:54,683 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_weight [2022-07-23 00:52:54,684 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_weight [2022-07-23 00:52:54,684 INFO L130 BoogieDeclarations]: Found specification of procedure isert_handle_prot_cmd [2022-07-23 00:52:54,684 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_handle_prot_cmd [2022-07-23 00:52:54,684 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dereg_mr [2022-07-23 00:52:54,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dereg_mr [2022-07-23 00:52:54,684 INFO L130 BoogieDeclarations]: Found specification of procedure ib_req_notify_cq [2022-07-23 00:52:54,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_req_notify_cq [2022-07-23 00:52:54,684 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-23 00:52:54,685 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-23 00:52:54,685 INFO L130 BoogieDeclarations]: Found specification of procedure isert_check_pi_status [2022-07-23 00:52:54,685 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_check_pi_status [2022-07-23 00:52:54,685 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2022-07-23 00:52:54,685 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2022-07-23 00:52:54,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-23 00:52:54,685 INFO L130 BoogieDeclarations]: Found specification of procedure isert_create_send_desc [2022-07-23 00:52:54,685 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_create_send_desc [2022-07-23 00:52:54,686 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-23 00:52:54,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-23 00:52:54,686 INFO L130 BoogieDeclarations]: Found specification of procedure ib_sg_dma_len [2022-07-23 00:52:54,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_sg_dma_len [2022-07-23 00:52:54,686 INFO L130 BoogieDeclarations]: Found specification of procedure isert_fast_reg_mr [2022-07-23 00:52:54,686 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_fast_reg_mr [2022-07-23 00:52:54,686 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-23 00:52:54,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-23 00:52:54,687 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2022-07-23 00:52:54,687 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2022-07-23 00:52:54,687 INFO L130 BoogieDeclarations]: Found specification of procedure isert_post_response [2022-07-23 00:52:54,687 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_post_response [2022-07-23 00:52:54,687 INFO L130 BoogieDeclarations]: Found specification of procedure ib_alloc_fast_reg_mr [2022-07-23 00:52:54,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_alloc_fast_reg_mr [2022-07-23 00:52:54,687 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-07-23 00:52:54,688 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-07-23 00:52:54,688 INFO L130 BoogieDeclarations]: Found specification of procedure isert_rx_login_req [2022-07-23 00:52:54,688 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_rx_login_req [2022-07-23 00:52:54,688 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2022-07-23 00:52:54,688 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2022-07-23 00:52:54,688 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_mapping_error [2022-07-23 00:52:54,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_mapping_error [2022-07-23 00:52:54,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-23 00:52:54,689 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-07-23 00:52:54,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-07-23 00:52:54,689 INFO L130 BoogieDeclarations]: Found specification of procedure target_put_sess_cmd [2022-07-23 00:52:54,689 INFO L138 BoogieDeclarations]: Found implementation of procedure target_put_sess_cmd [2022-07-23 00:52:54,689 INFO L130 BoogieDeclarations]: Found specification of procedure isert_set_dif_domain [2022-07-23 00:52:54,689 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_set_dif_domain [2022-07-23 00:52:54,689 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2022-07-23 00:52:54,689 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2022-07-23 00:52:54,690 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dealloc_pd [2022-07-23 00:52:54,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dealloc_pd [2022-07-23 00:52:54,690 INFO L130 BoogieDeclarations]: Found specification of procedure ib_alloc_fast_reg_page_list [2022-07-23 00:52:54,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_alloc_fast_reg_page_list [2022-07-23 00:52:54,690 INFO L130 BoogieDeclarations]: Found specification of procedure iscsit_build_rsp_pdu [2022-07-23 00:52:54,690 INFO L138 BoogieDeclarations]: Found implementation of procedure iscsit_build_rsp_pdu [2022-07-23 00:52:55,792 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 00:52:55,796 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 00:52:55,946 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-23 00:53:02,112 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 00:53:02,137 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 00:53:02,138 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-23 00:53:02,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 12:53:02 BoogieIcfgContainer [2022-07-23 00:53:02,143 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 00:53:02,145 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-23 00:53:02,145 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-23 00:53:02,149 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-23 00:53:02,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 12:52:49" (1/3) ... [2022-07-23 00:53:02,150 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37cfe993 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 12:53:02, skipping insertion in model container [2022-07-23 00:53:02,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:52:53" (2/3) ... [2022-07-23 00:53:02,150 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37cfe993 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 12:53:02, skipping insertion in model container [2022-07-23 00:53:02,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 12:53:02" (3/3) ... [2022-07-23 00:53:02,152 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 [2022-07-23 00:53:02,165 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-23 00:53:02,165 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-23 00:53:02,280 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-23 00:53:02,286 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@65c1381a, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7c8d4902 [2022-07-23 00:53:02,286 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-23 00:53:02,298 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) [2022-07-23 00:53:02,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-07-23 00:53:02,325 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:53:02,326 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] [2022-07-23 00:53:02,326 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:53:02,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:53:02,332 INFO L85 PathProgramCache]: Analyzing trace with hash 926087783, now seen corresponding path program 1 times [2022-07-23 00:53:02,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:53:02,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085811995] [2022-07-23 00:53:02,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:53:02,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:53:02,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:02,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:53:02,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:02,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:02,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:02,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:53:02,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:03,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-23 00:53:03,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:03,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:03,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:03,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-23 00:53:03,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:03,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:03,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:03,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-23 00:53:03,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:03,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:03,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:03,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-23 00:53:03,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:03,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:03,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:03,276 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-07-23 00:53:03,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:53:03,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085811995] [2022-07-23 00:53:03,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085811995] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:53:03,277 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:53:03,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-23 00:53:03,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058572589] [2022-07-23 00:53:03,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:53:03,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 00:53:03,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:53:03,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 00:53:03,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-23 00:53:03,311 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) [2022-07-23 00:53:05,724 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 [] [2022-07-23 00:53:07,744 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 [] [2022-07-23 00:53:14,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:53:14,666 INFO L93 Difference]: Finished difference Result 5481 states and 8253 transitions. [2022-07-23 00:53:14,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-23 00:53:14,670 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 [2022-07-23 00:53:14,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:53:14,726 INFO L225 Difference]: With dead ends: 5481 [2022-07-23 00:53:14,727 INFO L226 Difference]: Without dead ends: 3105 [2022-07-23 00:53:14,751 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 [2022-07-23 00:53:14,755 INFO L413 NwaCegarLoop]: 3004 mSDtfsCounter, 2717 mSDsluCounter, 2734 mSDsCounter, 0 mSdLazyCounter, 2297 mSolverCounterSat, 2119 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2785 SdHoareTripleChecker+Valid, 5738 SdHoareTripleChecker+Invalid, 4418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2119 IncrementalHoareTripleChecker+Valid, 2297 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2022-07-23 00:53:14,756 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2785 Valid, 5738 Invalid, 4418 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2119 Valid, 2297 Invalid, 2 Unknown, 0 Unchecked, 10.9s Time] [2022-07-23 00:53:14,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3105 states. [2022-07-23 00:53:14,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3105 to 2335. [2022-07-23 00:53:14,985 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) [2022-07-23 00:53:15,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2335 states to 2335 states and 3293 transitions. [2022-07-23 00:53:15,012 INFO L78 Accepts]: Start accepts. Automaton has 2335 states and 3293 transitions. Word has length 82 [2022-07-23 00:53:15,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:53:15,012 INFO L495 AbstractCegarLoop]: Abstraction has 2335 states and 3293 transitions. [2022-07-23 00:53:15,013 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) [2022-07-23 00:53:15,013 INFO L276 IsEmpty]: Start isEmpty. Operand 2335 states and 3293 transitions. [2022-07-23 00:53:15,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-07-23 00:53:15,020 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:53:15,020 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] [2022-07-23 00:53:15,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-23 00:53:15,021 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:53:15,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:53:15,022 INFO L85 PathProgramCache]: Analyzing trace with hash -41262871, now seen corresponding path program 1 times [2022-07-23 00:53:15,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:53:15,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472007095] [2022-07-23 00:53:15,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:53:15,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:53:15,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:15,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:53:15,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:15,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:15,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:15,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:53:15,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:15,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-23 00:53:15,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:15,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:15,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:15,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-23 00:53:15,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:15,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:15,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:15,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-23 00:53:15,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:15,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:15,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:15,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-23 00:53:15,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:15,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:15,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:15,510 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-07-23 00:53:15,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:53:15,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472007095] [2022-07-23 00:53:15,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472007095] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:53:15,512 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:53:15,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-23 00:53:15,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425537327] [2022-07-23 00:53:15,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:53:15,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 00:53:15,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:53:15,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 00:53:15,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-23 00:53:15,514 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) [2022-07-23 00:53:17,963 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 [] [2022-07-23 00:53:19,985 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:53:24,855 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:53:26,926 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:53:33,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:53:33,871 INFO L93 Difference]: Finished difference Result 3124 states and 4643 transitions. [2022-07-23 00:53:33,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-23 00:53:33,871 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 [2022-07-23 00:53:33,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:53:33,891 INFO L225 Difference]: With dead ends: 3124 [2022-07-23 00:53:33,892 INFO L226 Difference]: Without dead ends: 3120 [2022-07-23 00:53:33,894 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 [2022-07-23 00:53:33,895 INFO L413 NwaCegarLoop]: 2946 mSDtfsCounter, 5460 mSDsluCounter, 3937 mSDsCounter, 0 mSdLazyCounter, 3166 mSolverCounterSat, 2686 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5798 SdHoareTripleChecker+Valid, 6883 SdHoareTripleChecker+Invalid, 5856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2686 IncrementalHoareTripleChecker+Valid, 3166 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.0s IncrementalHoareTripleChecker+Time [2022-07-23 00:53:33,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5798 Valid, 6883 Invalid, 5856 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2686 Valid, 3166 Invalid, 4 Unknown, 0 Unchecked, 18.0s Time] [2022-07-23 00:53:33,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3120 states. [2022-07-23 00:53:34,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3120 to 2348. [2022-07-23 00:53:34,016 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) [2022-07-23 00:53:34,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2348 states to 2348 states and 3299 transitions. [2022-07-23 00:53:34,031 INFO L78 Accepts]: Start accepts. Automaton has 2348 states and 3299 transitions. Word has length 82 [2022-07-23 00:53:34,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:53:34,034 INFO L495 AbstractCegarLoop]: Abstraction has 2348 states and 3299 transitions. [2022-07-23 00:53:34,034 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) [2022-07-23 00:53:34,034 INFO L276 IsEmpty]: Start isEmpty. Operand 2348 states and 3299 transitions. [2022-07-23 00:53:34,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-07-23 00:53:34,037 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:53:34,037 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] [2022-07-23 00:53:34,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-23 00:53:34,038 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:53:34,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:53:34,038 INFO L85 PathProgramCache]: Analyzing trace with hash -1280119528, now seen corresponding path program 1 times [2022-07-23 00:53:34,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:53:34,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858982812] [2022-07-23 00:53:34,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:53:34,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:53:34,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:34,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:53:34,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:34,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:34,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:34,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:53:34,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:34,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-23 00:53:34,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:34,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:34,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:34,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-23 00:53:34,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:34,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:34,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:34,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-23 00:53:34,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:34,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:34,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:34,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-23 00:53:34,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:34,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:34,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:34,539 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-07-23 00:53:34,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:53:34,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858982812] [2022-07-23 00:53:34,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858982812] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:53:34,540 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:53:34,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-23 00:53:34,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012119378] [2022-07-23 00:53:34,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:53:34,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 00:53:34,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:53:34,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 00:53:34,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-23 00:53:34,544 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) [2022-07-23 00:53:36,883 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 [] [2022-07-23 00:53:38,902 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 [] [2022-07-23 00:53:46,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:53:46,976 INFO L93 Difference]: Finished difference Result 3120 states and 4638 transitions. [2022-07-23 00:53:46,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-23 00:53:46,977 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 [2022-07-23 00:53:46,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:53:47,001 INFO L225 Difference]: With dead ends: 3120 [2022-07-23 00:53:47,001 INFO L226 Difference]: Without dead ends: 3117 [2022-07-23 00:53:47,004 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 [2022-07-23 00:53:47,006 INFO L413 NwaCegarLoop]: 2922 mSDtfsCounter, 5519 mSDsluCounter, 2826 mSDsCounter, 0 mSdLazyCounter, 2345 mSolverCounterSat, 2715 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5861 SdHoareTripleChecker+Valid, 5748 SdHoareTripleChecker+Invalid, 5062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2715 IncrementalHoareTripleChecker+Valid, 2345 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2022-07-23 00:53:47,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5861 Valid, 5748 Invalid, 5062 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2715 Valid, 2345 Invalid, 2 Unknown, 0 Unchecked, 12.1s Time] [2022-07-23 00:53:47,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3117 states. [2022-07-23 00:53:47,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3117 to 2347. [2022-07-23 00:53:47,126 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) [2022-07-23 00:53:47,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2347 states to 2347 states and 3297 transitions. [2022-07-23 00:53:47,138 INFO L78 Accepts]: Start accepts. Automaton has 2347 states and 3297 transitions. Word has length 83 [2022-07-23 00:53:47,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:53:47,139 INFO L495 AbstractCegarLoop]: Abstraction has 2347 states and 3297 transitions. [2022-07-23 00:53:47,139 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) [2022-07-23 00:53:47,139 INFO L276 IsEmpty]: Start isEmpty. Operand 2347 states and 3297 transitions. [2022-07-23 00:53:47,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-07-23 00:53:47,141 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:53:47,142 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] [2022-07-23 00:53:47,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-23 00:53:47,142 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:53:47,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:53:47,143 INFO L85 PathProgramCache]: Analyzing trace with hash -1029965364, now seen corresponding path program 1 times [2022-07-23 00:53:47,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:53:47,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559776756] [2022-07-23 00:53:47,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:53:47,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:53:47,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:47,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:53:47,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:47,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:47,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:47,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:53:47,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:47,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-23 00:53:47,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:47,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:47,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:47,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-23 00:53:47,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:47,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:47,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:47,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-23 00:53:47,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:47,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:47,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:47,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-23 00:53:47,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:47,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:53:47,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:53:47,563 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-07-23 00:53:47,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:53:47,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559776756] [2022-07-23 00:53:47,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559776756] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:53:47,564 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:53:47,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-23 00:53:47,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773877400] [2022-07-23 00:53:47,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:53:47,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 00:53:47,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:53:47,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 00:53:47,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-23 00:53:47,567 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) [2022-07-23 00:53:49,958 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 [] [2022-07-23 00:53:51,984 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:53:56,359 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:54:03,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:54:03,007 INFO L93 Difference]: Finished difference Result 3119 states and 4636 transitions. [2022-07-23 00:54:03,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-23 00:54:03,008 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 [2022-07-23 00:54:03,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:54:03,036 INFO L225 Difference]: With dead ends: 3119 [2022-07-23 00:54:03,036 INFO L226 Difference]: Without dead ends: 3116 [2022-07-23 00:54:03,040 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 [2022-07-23 00:54:03,042 INFO L413 NwaCegarLoop]: 2914 mSDtfsCounter, 5922 mSDsluCounter, 2691 mSDsCounter, 0 mSdLazyCounter, 2328 mSolverCounterSat, 2875 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6262 SdHoareTripleChecker+Valid, 5605 SdHoareTripleChecker+Invalid, 5206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2875 IncrementalHoareTripleChecker+Valid, 2328 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.1s IncrementalHoareTripleChecker+Time [2022-07-23 00:54:03,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6262 Valid, 5605 Invalid, 5206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2875 Valid, 2328 Invalid, 3 Unknown, 0 Unchecked, 15.1s Time] [2022-07-23 00:54:03,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3116 states. [2022-07-23 00:54:03,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3116 to 2346. [2022-07-23 00:54:03,183 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) [2022-07-23 00:54:03,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2346 states to 2346 states and 3295 transitions. [2022-07-23 00:54:03,197 INFO L78 Accepts]: Start accepts. Automaton has 2346 states and 3295 transitions. Word has length 84 [2022-07-23 00:54:03,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:54:03,198 INFO L495 AbstractCegarLoop]: Abstraction has 2346 states and 3295 transitions. [2022-07-23 00:54:03,198 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) [2022-07-23 00:54:03,198 INFO L276 IsEmpty]: Start isEmpty. Operand 2346 states and 3295 transitions. [2022-07-23 00:54:03,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-07-23 00:54:03,200 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:54:03,200 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] [2022-07-23 00:54:03,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-23 00:54:03,201 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:54:03,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:54:03,202 INFO L85 PathProgramCache]: Analyzing trace with hash 81815386, now seen corresponding path program 1 times [2022-07-23 00:54:03,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:54:03,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129790458] [2022-07-23 00:54:03,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:54:03,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:54:03,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:03,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:54:03,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:03,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:03,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:03,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:54:03,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:03,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-23 00:54:03,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:03,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:03,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:03,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-23 00:54:03,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:03,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:03,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:03,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-23 00:54:03,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:03,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:03,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:03,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-23 00:54:03,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:03,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:03,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:03,639 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-07-23 00:54:03,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:54:03,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129790458] [2022-07-23 00:54:03,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129790458] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:54:03,640 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:54:03,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-23 00:54:03,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343571290] [2022-07-23 00:54:03,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:54:03,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 00:54:03,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:54:03,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 00:54:03,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-23 00:54:03,644 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) [2022-07-23 00:54:09,034 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:54:11,086 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:54:21,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:54:21,933 INFO L93 Difference]: Finished difference Result 8053 states and 11743 transitions. [2022-07-23 00:54:21,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-23 00:54:21,934 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 [2022-07-23 00:54:21,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:54:21,969 INFO L225 Difference]: With dead ends: 8053 [2022-07-23 00:54:21,969 INFO L226 Difference]: Without dead ends: 5728 [2022-07-23 00:54:21,984 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-23 00:54:21,985 INFO L413 NwaCegarLoop]: 3297 mSDtfsCounter, 6984 mSDsluCounter, 5016 mSDsCounter, 0 mSdLazyCounter, 4859 mSolverCounterSat, 4246 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7305 SdHoareTripleChecker+Valid, 8313 SdHoareTripleChecker+Invalid, 9107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4246 IncrementalHoareTripleChecker+Valid, 4859 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.7s IncrementalHoareTripleChecker+Time [2022-07-23 00:54:21,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7305 Valid, 8313 Invalid, 9107 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4246 Valid, 4859 Invalid, 2 Unknown, 0 Unchecked, 17.7s Time] [2022-07-23 00:54:21,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5728 states. [2022-07-23 00:54:22,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5728 to 4194. [2022-07-23 00:54:22,282 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) [2022-07-23 00:54:22,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4194 states to 4194 states and 5838 transitions. [2022-07-23 00:54:22,303 INFO L78 Accepts]: Start accepts. Automaton has 4194 states and 5838 transitions. Word has length 86 [2022-07-23 00:54:22,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:54:22,304 INFO L495 AbstractCegarLoop]: Abstraction has 4194 states and 5838 transitions. [2022-07-23 00:54:22,305 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) [2022-07-23 00:54:22,305 INFO L276 IsEmpty]: Start isEmpty. Operand 4194 states and 5838 transitions. [2022-07-23 00:54:22,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-07-23 00:54:22,306 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:54:22,306 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] [2022-07-23 00:54:22,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-23 00:54:22,307 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:54:22,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:54:22,307 INFO L85 PathProgramCache]: Analyzing trace with hash -1865116005, now seen corresponding path program 1 times [2022-07-23 00:54:22,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:54:22,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384102032] [2022-07-23 00:54:22,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:54:22,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:54:22,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:22,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:54:22,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:22,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:22,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:22,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:54:22,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:22,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-23 00:54:22,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:22,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:22,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:22,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-23 00:54:22,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:22,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:22,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:22,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-23 00:54:22,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:22,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:22,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:22,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-23 00:54:22,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:22,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:22,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:22,669 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-07-23 00:54:22,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:54:22,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384102032] [2022-07-23 00:54:22,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384102032] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:54:22,670 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:54:22,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-23 00:54:22,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273668314] [2022-07-23 00:54:22,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:54:22,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 00:54:22,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:54:22,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 00:54:22,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-23 00:54:22,672 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) [2022-07-23 00:54:26,131 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:54:28,251 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:54:31,886 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:54:33,922 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:54:39,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:54:39,606 INFO L93 Difference]: Finished difference Result 5710 states and 8452 transitions. [2022-07-23 00:54:39,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-23 00:54:39,606 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 [2022-07-23 00:54:39,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:54:39,645 INFO L225 Difference]: With dead ends: 5710 [2022-07-23 00:54:39,645 INFO L226 Difference]: Without dead ends: 5707 [2022-07-23 00:54:39,652 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 [2022-07-23 00:54:39,653 INFO L413 NwaCegarLoop]: 2925 mSDtfsCounter, 5878 mSDsluCounter, 2703 mSDsCounter, 0 mSdLazyCounter, 2346 mSolverCounterSat, 2833 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6222 SdHoareTripleChecker+Valid, 5628 SdHoareTripleChecker+Invalid, 5183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2833 IncrementalHoareTripleChecker+Valid, 2346 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.5s IncrementalHoareTripleChecker+Time [2022-07-23 00:54:39,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6222 Valid, 5628 Invalid, 5183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2833 Valid, 2346 Invalid, 4 Unknown, 0 Unchecked, 16.5s Time] [2022-07-23 00:54:39,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5707 states. [2022-07-23 00:54:39,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5707 to 4193. [2022-07-23 00:54:39,897 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) [2022-07-23 00:54:39,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4193 states to 4193 states and 5836 transitions. [2022-07-23 00:54:39,917 INFO L78 Accepts]: Start accepts. Automaton has 4193 states and 5836 transitions. Word has length 85 [2022-07-23 00:54:39,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:54:39,918 INFO L495 AbstractCegarLoop]: Abstraction has 4193 states and 5836 transitions. [2022-07-23 00:54:39,919 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) [2022-07-23 00:54:39,919 INFO L276 IsEmpty]: Start isEmpty. Operand 4193 states and 5836 transitions. [2022-07-23 00:54:39,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-07-23 00:54:39,921 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:54:39,921 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] [2022-07-23 00:54:39,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-23 00:54:39,921 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:54:39,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:54:39,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1984977233, now seen corresponding path program 1 times [2022-07-23 00:54:39,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:54:39,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312927061] [2022-07-23 00:54:39,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:54:39,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:54:39,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:40,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:54:40,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:40,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:40,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:40,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:54:40,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:40,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-23 00:54:40,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:40,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:40,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:40,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-23 00:54:40,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:40,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:40,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:40,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-23 00:54:40,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:40,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:40,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:40,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-23 00:54:40,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:40,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:40,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:40,365 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-07-23 00:54:40,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:54:40,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312927061] [2022-07-23 00:54:40,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312927061] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:54:40,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:54:40,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-23 00:54:40,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207464345] [2022-07-23 00:54:40,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:54:40,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 00:54:40,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:54:40,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 00:54:40,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-23 00:54:40,368 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) [2022-07-23 00:54:46,035 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:54:48,078 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:54:55,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:54:55,541 INFO L93 Difference]: Finished difference Result 5729 states and 8463 transitions. [2022-07-23 00:54:55,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 00:54:55,542 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 [2022-07-23 00:54:55,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:54:55,587 INFO L225 Difference]: With dead ends: 5729 [2022-07-23 00:54:55,587 INFO L226 Difference]: Without dead ends: 5725 [2022-07-23 00:54:55,592 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 [2022-07-23 00:54:55,593 INFO L413 NwaCegarLoop]: 2926 mSDtfsCounter, 5427 mSDsluCounter, 3961 mSDsCounter, 0 mSdLazyCounter, 3151 mSolverCounterSat, 2681 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5749 SdHoareTripleChecker+Valid, 6887 SdHoareTripleChecker+Invalid, 5834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2681 IncrementalHoareTripleChecker+Valid, 3151 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.7s IncrementalHoareTripleChecker+Time [2022-07-23 00:54:55,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5749 Valid, 6887 Invalid, 5834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2681 Valid, 3151 Invalid, 2 Unknown, 0 Unchecked, 14.7s Time] [2022-07-23 00:54:55,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5725 states. [2022-07-23 00:54:55,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5725 to 4209. [2022-07-23 00:54:55,853 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) [2022-07-23 00:54:55,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4209 states to 4209 states and 5843 transitions. [2022-07-23 00:54:55,872 INFO L78 Accepts]: Start accepts. Automaton has 4209 states and 5843 transitions. Word has length 86 [2022-07-23 00:54:55,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:54:55,873 INFO L495 AbstractCegarLoop]: Abstraction has 4209 states and 5843 transitions. [2022-07-23 00:54:55,873 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) [2022-07-23 00:54:55,873 INFO L276 IsEmpty]: Start isEmpty. Operand 4209 states and 5843 transitions. [2022-07-23 00:54:55,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-07-23 00:54:55,875 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:54:55,876 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] [2022-07-23 00:54:55,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-23 00:54:55,876 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:54:55,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:54:55,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1405703138, now seen corresponding path program 1 times [2022-07-23 00:54:55,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:54:55,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230530942] [2022-07-23 00:54:55,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:54:55,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:54:55,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:56,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:54:56,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:56,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:56,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:56,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:54:56,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:56,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-23 00:54:56,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:56,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:56,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:56,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-23 00:54:56,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:56,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:56,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:56,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-23 00:54:56,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:56,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:56,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:56,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-23 00:54:56,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:56,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:54:56,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:54:56,232 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-07-23 00:54:56,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:54:56,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230530942] [2022-07-23 00:54:56,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230530942] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:54:56,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:54:56,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-23 00:54:56,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030146262] [2022-07-23 00:54:56,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:54:56,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 00:54:56,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:54:56,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 00:54:56,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-23 00:54:56,235 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) [2022-07-23 00:54:59,863 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:55:03,726 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:55:05,766 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 [] [2022-07-23 00:55:11,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:55:11,862 INFO L93 Difference]: Finished difference Result 6256 states and 9136 transitions. [2022-07-23 00:55:11,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-23 00:55:11,868 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 [2022-07-23 00:55:11,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:55:11,893 INFO L225 Difference]: With dead ends: 6256 [2022-07-23 00:55:11,894 INFO L226 Difference]: Without dead ends: 6236 [2022-07-23 00:55:11,899 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 [2022-07-23 00:55:11,900 INFO L413 NwaCegarLoop]: 2961 mSDtfsCounter, 6074 mSDsluCounter, 2770 mSDsCounter, 0 mSdLazyCounter, 2742 mSolverCounterSat, 2992 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6424 SdHoareTripleChecker+Valid, 5731 SdHoareTripleChecker+Invalid, 5737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2992 IncrementalHoareTripleChecker+Valid, 2742 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.2s IncrementalHoareTripleChecker+Time [2022-07-23 00:55:11,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6424 Valid, 5731 Invalid, 5737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2992 Valid, 2742 Invalid, 3 Unknown, 0 Unchecked, 15.2s Time] [2022-07-23 00:55:11,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6236 states. [2022-07-23 00:55:12,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6236 to 4619. [2022-07-23 00:55:12,175 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) [2022-07-23 00:55:12,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4619 states to 4619 states and 6333 transitions. [2022-07-23 00:55:12,195 INFO L78 Accepts]: Start accepts. Automaton has 4619 states and 6333 transitions. Word has length 87 [2022-07-23 00:55:12,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:55:12,196 INFO L495 AbstractCegarLoop]: Abstraction has 4619 states and 6333 transitions. [2022-07-23 00:55:12,196 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) [2022-07-23 00:55:12,196 INFO L276 IsEmpty]: Start isEmpty. Operand 4619 states and 6333 transitions. [2022-07-23 00:55:12,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-07-23 00:55:12,199 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:55:12,199 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] [2022-07-23 00:55:12,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-23 00:55:12,199 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:55:12,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:55:12,200 INFO L85 PathProgramCache]: Analyzing trace with hash 244158121, now seen corresponding path program 1 times [2022-07-23 00:55:12,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:55:12,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308772329] [2022-07-23 00:55:12,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:55:12,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:55:12,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:12,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:55:12,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:12,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:12,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:12,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:55:12,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:12,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-23 00:55:12,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:12,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:12,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:12,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-23 00:55:12,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:12,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:12,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:12,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-23 00:55:12,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:12,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:12,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:12,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-23 00:55:12,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:12,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:12,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:12,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-23 00:55:12,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:12,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-23 00:55:12,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:12,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-23 00:55:12,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:12,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-23 00:55:12,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:12,646 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-07-23 00:55:12,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:55:12,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308772329] [2022-07-23 00:55:12,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308772329] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:55:12,647 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:55:12,647 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-23 00:55:12,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231333714] [2022-07-23 00:55:12,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:55:12,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 00:55:12,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:55:12,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 00:55:12,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 00:55:12,649 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) [2022-07-23 00:55:16,951 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 [] [2022-07-23 00:55:20,696 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 [] [2022-07-23 00:55:28,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:55:28,387 INFO L93 Difference]: Finished difference Result 6881 states and 10204 transitions. [2022-07-23 00:55:28,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-23 00:55:28,387 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 [2022-07-23 00:55:28,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:55:28,425 INFO L225 Difference]: With dead ends: 6881 [2022-07-23 00:55:28,425 INFO L226 Difference]: Without dead ends: 6860 [2022-07-23 00:55:28,436 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 [2022-07-23 00:55:28,437 INFO L413 NwaCegarLoop]: 2713 mSDtfsCounter, 5712 mSDsluCounter, 2820 mSDsCounter, 0 mSdLazyCounter, 5318 mSolverCounterSat, 4554 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5997 SdHoareTripleChecker+Valid, 5533 SdHoareTripleChecker+Invalid, 9874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4554 IncrementalHoareTripleChecker+Valid, 5318 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.1s IncrementalHoareTripleChecker+Time [2022-07-23 00:55:28,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5997 Valid, 5533 Invalid, 9874 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4554 Valid, 5318 Invalid, 2 Unknown, 0 Unchecked, 15.1s Time] [2022-07-23 00:55:28,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6860 states. [2022-07-23 00:55:28,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6860 to 4600. [2022-07-23 00:55:28,746 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) [2022-07-23 00:55:28,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4600 states to 4600 states and 6302 transitions. [2022-07-23 00:55:28,767 INFO L78 Accepts]: Start accepts. Automaton has 4600 states and 6302 transitions. Word has length 106 [2022-07-23 00:55:28,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:55:28,767 INFO L495 AbstractCegarLoop]: Abstraction has 4600 states and 6302 transitions. [2022-07-23 00:55:28,768 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) [2022-07-23 00:55:28,768 INFO L276 IsEmpty]: Start isEmpty. Operand 4600 states and 6302 transitions. [2022-07-23 00:55:28,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-07-23 00:55:28,781 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:55:28,781 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] [2022-07-23 00:55:28,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-23 00:55:28,782 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:55:28,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:55:28,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1315434094, now seen corresponding path program 1 times [2022-07-23 00:55:28,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:55:28,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417735560] [2022-07-23 00:55:28,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:55:28,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:55:28,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:29,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:55:29,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:29,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:29,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:29,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:55:29,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:29,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-23 00:55:29,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:29,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:29,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:29,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-23 00:55:29,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:29,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:29,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:29,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-23 00:55:29,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:29,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:29,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:29,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-23 00:55:29,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:29,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:29,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:29,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-23 00:55:29,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:29,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-23 00:55:29,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:29,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-23 00:55:29,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:29,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-23 00:55:29,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:29,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-23 00:55:29,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:29,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-23 00:55:29,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:29,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-23 00:55:29,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:29,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-23 00:55:29,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:29,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-23 00:55:29,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:29,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-23 00:55:29,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:29,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-23 00:55:29,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:29,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-23 00:55:29,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:29,380 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-07-23 00:55:29,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:55:29,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417735560] [2022-07-23 00:55:29,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417735560] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:55:29,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:55:29,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-23 00:55:29,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704432757] [2022-07-23 00:55:29,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:55:29,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-23 00:55:29,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:55:29,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-23 00:55:29,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-23 00:55:29,383 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) [2022-07-23 00:55:36,698 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 [] [2022-07-23 00:55:48,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:55:48,048 INFO L93 Difference]: Finished difference Result 6921 states and 10233 transitions. [2022-07-23 00:55:48,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-23 00:55:48,049 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 [2022-07-23 00:55:48,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:55:48,095 INFO L225 Difference]: With dead ends: 6921 [2022-07-23 00:55:48,095 INFO L226 Difference]: Without dead ends: 6918 [2022-07-23 00:55:48,103 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 [2022-07-23 00:55:48,104 INFO L413 NwaCegarLoop]: 2766 mSDtfsCounter, 7490 mSDsluCounter, 2639 mSDsCounter, 0 mSdLazyCounter, 8487 mSolverCounterSat, 5807 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7605 SdHoareTripleChecker+Valid, 5405 SdHoareTripleChecker+Invalid, 14295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5807 IncrementalHoareTripleChecker+Valid, 8487 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.9s IncrementalHoareTripleChecker+Time [2022-07-23 00:55:48,105 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7605 Valid, 5405 Invalid, 14295 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5807 Valid, 8487 Invalid, 1 Unknown, 0 Unchecked, 17.9s Time] [2022-07-23 00:55:48,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6918 states. [2022-07-23 00:55:48,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6918 to 4599. [2022-07-23 00:55:48,464 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) [2022-07-23 00:55:48,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4599 states to 4599 states and 6299 transitions. [2022-07-23 00:55:48,483 INFO L78 Accepts]: Start accepts. Automaton has 4599 states and 6299 transitions. Word has length 169 [2022-07-23 00:55:48,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:55:48,483 INFO L495 AbstractCegarLoop]: Abstraction has 4599 states and 6299 transitions. [2022-07-23 00:55:48,484 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) [2022-07-23 00:55:48,484 INFO L276 IsEmpty]: Start isEmpty. Operand 4599 states and 6299 transitions. [2022-07-23 00:55:48,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-23 00:55:48,501 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:55:48,501 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] [2022-07-23 00:55:48,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-23 00:55:48,502 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:55:48,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:55:48,502 INFO L85 PathProgramCache]: Analyzing trace with hash 402287534, now seen corresponding path program 1 times [2022-07-23 00:55:48,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:55:48,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364859353] [2022-07-23 00:55:48,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:55:48,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:55:48,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:48,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:55:48,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:48,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:48,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:48,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:55:48,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:48,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-23 00:55:48,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:48,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:48,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:48,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-23 00:55:48,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:48,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:48,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:48,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-23 00:55:48,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:48,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:48,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:48,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-23 00:55:48,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:48,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:55:48,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:49,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-23 00:55:49,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:49,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-23 00:55:49,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:49,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-23 00:55:49,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:49,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-23 00:55:49,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:49,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-23 00:55:49,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:49,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-23 00:55:49,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:49,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-23 00:55:49,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:49,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-23 00:55:49,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:49,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-23 00:55:49,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:49,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-23 00:55:49,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:49,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-23 00:55:49,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:49,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-23 00:55:49,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:49,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-23 00:55:49,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:49,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-23 00:55:49,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:49,286 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-07-23 00:55:49,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:55:49,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364859353] [2022-07-23 00:55:49,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364859353] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 00:55:49,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [533879406] [2022-07-23 00:55:49,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:55:49,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 00:55:49,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 00:55:49,293 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) [2022-07-23 00:55:49,296 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-23 00:55:50,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:55:50,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 3297 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-23 00:55:50,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:55:50,404 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2022-07-23 00:55:50,405 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 00:55:50,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [533879406] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:55:50,405 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 00:55:50,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [13] total 14 [2022-07-23 00:55:50,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627299295] [2022-07-23 00:55:50,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:55:50,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 00:55:50,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:55:50,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 00:55:50,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-07-23 00:55:50,408 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) [2022-07-23 00:55:50,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:55:50,756 INFO L93 Difference]: Finished difference Result 4599 states and 6299 transitions. [2022-07-23 00:55:50,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 00:55:50,757 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 [2022-07-23 00:55:50,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:55:50,760 INFO L225 Difference]: With dead ends: 4599 [2022-07-23 00:55:50,760 INFO L226 Difference]: Without dead ends: 0 [2022-07-23 00:55:50,777 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 [2022-07-23 00:55:50,778 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 [2022-07-23 00:55:50,778 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] [2022-07-23 00:55:50,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-23 00:55:50,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-23 00:55:50,779 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) [2022-07-23 00:55:50,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-23 00:55:50,780 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 189 [2022-07-23 00:55:50,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:55:50,780 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-23 00:55:50,781 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) [2022-07-23 00:55:50,781 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-23 00:55:50,781 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-23 00:55:50,785 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-23 00:55:50,824 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-23 00:55:50,999 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 [2022-07-23 00:55:51,002 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-23 00:56:03,529 WARN L233 SmtUtils]: Spent 12.51s 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) [2022-07-23 00:56:14,958 WARN L233 SmtUtils]: Spent 11.42s 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) [2022-07-23 00:56:26,656 WARN L233 SmtUtils]: Spent 11.70s 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) [2022-07-23 00:56:38,696 WARN L233 SmtUtils]: Spent 12.04s 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) [2022-07-23 00:56:50,602 WARN L233 SmtUtils]: Spent 11.90s 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)