./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 c3fed411 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-tmp.no-commuhash-c3fed41 [2021-12-18 06:43:25,637 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-18 06:43:25,638 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-18 06:43:25,662 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-18 06:43:25,663 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-18 06:43:25,664 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-18 06:43:25,665 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-18 06:43:25,666 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-18 06:43:25,668 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-18 06:43:25,679 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-18 06:43:25,680 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-18 06:43:25,681 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-18 06:43:25,681 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-18 06:43:25,682 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-18 06:43:25,683 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-18 06:43:25,684 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-18 06:43:25,685 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-18 06:43:25,685 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-18 06:43:25,686 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-18 06:43:25,688 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-18 06:43:25,689 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-18 06:43:25,690 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-18 06:43:25,690 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-18 06:43:25,691 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-18 06:43:25,693 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-18 06:43:25,693 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-18 06:43:25,693 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-18 06:43:25,694 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-18 06:43:25,694 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-18 06:43:25,695 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-18 06:43:25,695 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-18 06:43:25,696 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-18 06:43:25,696 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-18 06:43:25,697 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-18 06:43:25,698 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-18 06:43:25,698 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-18 06:43:25,698 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-18 06:43:25,699 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-18 06:43:25,699 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-18 06:43:25,700 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-18 06:43:25,700 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-18 06:43:25,701 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-18 06:43:25,717 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-18 06:43:25,717 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-18 06:43:25,718 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-18 06:43:25,718 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-18 06:43:25,719 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-18 06:43:25,719 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-18 06:43:25,719 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-18 06:43:25,719 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-18 06:43:25,720 INFO L138 SettingsManager]: * Use SBE=true [2021-12-18 06:43:25,720 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-18 06:43:25,720 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-18 06:43:25,720 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-18 06:43:25,720 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-18 06:43:25,721 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-18 06:43:25,721 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-18 06:43:25,721 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-18 06:43:25,721 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-18 06:43:25,721 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-18 06:43:25,721 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-18 06:43:25,722 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-18 06:43:25,722 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-18 06:43:25,722 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 06:43:25,722 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-18 06:43:25,722 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-18 06:43:25,722 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-18 06:43:25,723 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-18 06:43:25,723 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-18 06:43:25,724 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-18 06:43:25,724 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-18 06:43:25,725 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-18 06:43:25,725 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-18 06:43:25,725 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d57db9f03a5170fd6970a4ac4989029ee35a0e85ad6a1c5337395bb7ff185d1b [2021-12-18 06:43:25,886 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-18 06:43:25,901 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-18 06:43:25,903 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-18 06:43:25,904 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-18 06:43:25,905 INFO L275 PluginConnector]: CDTParser initialized [2021-12-18 06:43:25,906 INFO L432 ainManager$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 [2021-12-18 06:43:25,956 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7bade324/313aac2bce0b475f8dbce367942fd8f7/FLAG194d4e96a [2021-12-18 06:43:26,670 INFO L306 CDTParser]: Found 1 translation units. [2021-12-18 06:43:26,671 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 [2021-12-18 06:43:26,717 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7bade324/313aac2bce0b475f8dbce367942fd8f7/FLAG194d4e96a [2021-12-18 06:43:26,743 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7bade324/313aac2bce0b475f8dbce367942fd8f7 [2021-12-18 06:43:26,746 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-18 06:43:26,748 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-18 06:43:26,751 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-18 06:43:26,751 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-18 06:43:26,753 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-18 06:43:26,754 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 06:43:26" (1/1) ... [2021-12-18 06:43:26,756 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b083675 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:43:26, skipping insertion in model container [2021-12-18 06:43:26,756 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 06:43:26" (1/1) ... [2021-12-18 06:43:26,761 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-18 06:43:26,895 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-18 06:43:30,130 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] [2021-12-18 06:43:30,478 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 06:43:30,493 INFO L203 MainTranslator]: Completed pre-run [2021-12-18 06:43:30,970 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] [2021-12-18 06:43:30,982 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 06:43:31,070 INFO L208 MainTranslator]: Completed translation [2021-12-18 06:43:31,071 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:43:31 WrapperNode [2021-12-18 06:43:31,071 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-18 06:43:31,072 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-18 06:43:31,072 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-18 06:43:31,072 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-18 06:43:31,077 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:43:31" (1/1) ... [2021-12-18 06:43:31,138 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:43:31" (1/1) ... [2021-12-18 06:43:31,310 INFO L137 Inliner]: procedures = 483, calls = 2853, calls flagged for inlining = 237, calls inlined = 184, statements flattened = 6899 [2021-12-18 06:43:31,311 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-18 06:43:31,312 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-18 06:43:31,312 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-18 06:43:31,312 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-18 06:43:31,318 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:43:31" (1/1) ... [2021-12-18 06:43:31,319 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:43:31" (1/1) ... [2021-12-18 06:43:31,339 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:43:31" (1/1) ... [2021-12-18 06:43:31,339 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:43:31" (1/1) ... [2021-12-18 06:43:31,427 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:43:31" (1/1) ... [2021-12-18 06:43:31,447 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:43:31" (1/1) ... [2021-12-18 06:43:31,472 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:43:31" (1/1) ... [2021-12-18 06:43:31,502 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-18 06:43:31,503 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-18 06:43:31,503 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-18 06:43:31,503 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-18 06:43:31,504 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:43:31" (1/1) ... [2021-12-18 06:43:31,509 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 06:43:31,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 06:43:31,525 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-18 06:43:31,530 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-18 06:43:31,550 INFO L130 BoogieDeclarations]: Found specification of procedure ib_wc_status_msg [2021-12-18 06:43:31,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_wc_status_msg [2021-12-18 06:43:31,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-18 06:43:31,550 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-18 06:43:31,551 INFO L130 BoogieDeclarations]: Found specification of procedure isert_setup_id [2021-12-18 06:43:31,551 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_setup_id [2021-12-18 06:43:31,551 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-18 06:43:31,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-18 06:43:31,551 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_isert_conn [2021-12-18 06:43:31,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_isert_conn [2021-12-18 06:43:31,551 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2021-12-18 06:43:31,551 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2021-12-18 06:43:31,552 INFO L130 BoogieDeclarations]: Found specification of procedure dump_stack [2021-12-18 06:43:31,552 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_stack [2021-12-18 06:43:31,552 INFO L130 BoogieDeclarations]: Found specification of procedure iscsit_stop_dataout_timer [2021-12-18 06:43:31,552 INFO L138 BoogieDeclarations]: Found implementation of procedure iscsit_stop_dataout_timer [2021-12-18 06:43:31,552 INFO L130 BoogieDeclarations]: Found specification of procedure rdma_destroy_id [2021-12-18 06:43:31,552 INFO L138 BoogieDeclarations]: Found implementation of procedure rdma_destroy_id [2021-12-18 06:43:31,552 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2021-12-18 06:43:31,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2021-12-18 06:43:31,552 INFO L130 BoogieDeclarations]: Found specification of procedure isert_cq_work [2021-12-18 06:43:31,553 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_cq_work [2021-12-18 06:43:31,553 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-18 06:43:31,553 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-18 06:43:31,553 INFO L130 BoogieDeclarations]: Found specification of procedure ib_post_recv [2021-12-18 06:43:31,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_post_recv [2021-12-18 06:43:31,553 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_sync_single_for_device [2021-12-18 06:43:31,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_sync_single_for_device [2021-12-18 06:43:31,553 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-18 06:43:31,553 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-18 06:43:31,554 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_isert_conn [2021-12-18 06:43:31,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_isert_conn [2021-12-18 06:43:31,554 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_unmap_single [2021-12-18 06:43:31,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_unmap_single [2021-12-18 06:43:31,554 INFO L130 BoogieDeclarations]: Found specification of procedure isert_init_send_wr [2021-12-18 06:43:31,554 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_init_send_wr [2021-12-18 06:43:31,554 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_np_accept_mutex_of_isert_np [2021-12-18 06:43:31,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_np_accept_mutex_of_isert_np [2021-12-18 06:43:31,554 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-18 06:43:31,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-18 06:43:31,555 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-18 06:43:31,555 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-18 06:43:31,555 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_np_accept_mutex_of_isert_np [2021-12-18 06:43:31,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_np_accept_mutex_of_isert_np [2021-12-18 06:43:31,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-18 06:43:31,555 INFO L130 BoogieDeclarations]: Found specification of procedure ib_sg_dma_address [2021-12-18 06:43:31,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_sg_dma_address [2021-12-18 06:43:31,556 INFO L130 BoogieDeclarations]: Found specification of procedure isert_wait_conn [2021-12-18 06:43:31,556 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_wait_conn [2021-12-18 06:43:31,556 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u64~0~X~int~X~int~TO~VOID [2021-12-18 06:43:31,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u64~0~X~int~X~int~TO~VOID [2021-12-18 06:43:31,556 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-12-18 06:43:31,556 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-12-18 06:43:31,556 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2021-12-18 06:43:31,556 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2021-12-18 06:43:31,557 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_map_single [2021-12-18 06:43:31,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_map_single [2021-12-18 06:43:31,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-18 06:43:31,558 INFO L130 BoogieDeclarations]: Found specification of procedure isert_conn_terminate [2021-12-18 06:43:31,558 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_conn_terminate [2021-12-18 06:43:31,558 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-18 06:43:31,558 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-18 06:43:31,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-18 06:43:31,559 INFO L130 BoogieDeclarations]: Found specification of procedure isert_prot_cmd [2021-12-18 06:43:31,559 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_prot_cmd [2021-12-18 06:43:31,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-18 06:43:31,559 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-18 06:43:31,559 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-18 06:43:31,559 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_interruptible [2021-12-18 06:43:31,559 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_interruptible [2021-12-18 06:43:31,559 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-18 06:43:31,560 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-18 06:43:31,560 INFO L130 BoogieDeclarations]: Found specification of procedure isert_release_work [2021-12-18 06:43:31,560 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_release_work [2021-12-18 06:43:31,560 INFO L130 BoogieDeclarations]: Found specification of procedure isert_free_np [2021-12-18 06:43:31,560 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_free_np [2021-12-18 06:43:31,560 INFO L130 BoogieDeclarations]: Found specification of procedure isert_comp_put [2021-12-18 06:43:31,561 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_comp_put [2021-12-18 06:43:31,561 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-12-18 06:43:31,561 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-12-18 06:43:31,561 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-12-18 06:43:31,561 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-12-18 06:43:31,561 INFO L130 BoogieDeclarations]: Found specification of procedure sg_next [2021-12-18 06:43:31,561 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_next [2021-12-18 06:43:31,561 INFO L130 BoogieDeclarations]: Found specification of procedure sg_copy_from_buffer [2021-12-18 06:43:31,561 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_copy_from_buffer [2021-12-18 06:43:31,562 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-18 06:43:31,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-18 06:43:31,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-18 06:43:31,562 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2021-12-18 06:43:31,562 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2021-12-18 06:43:31,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-18 06:43:31,562 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2021-12-18 06:43:31,563 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2021-12-18 06:43:31,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-18 06:43:31,563 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-18 06:43:31,563 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-18 06:43:31,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-18 06:43:31,564 INFO L130 BoogieDeclarations]: Found specification of procedure isert_completion_put [2021-12-18 06:43:31,564 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_completion_put [2021-12-18 06:43:31,564 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-12-18 06:43:31,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-12-18 06:43:31,564 INFO L130 BoogieDeclarations]: Found specification of procedure isert_unmap_data_buf [2021-12-18 06:43:31,564 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_unmap_data_buf [2021-12-18 06:43:31,565 INFO L130 BoogieDeclarations]: Found specification of procedure isert_inv_rkey [2021-12-18 06:43:31,565 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_inv_rkey [2021-12-18 06:43:31,565 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-12-18 06:43:31,565 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-12-18 06:43:31,565 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_sync_single_for_cpu [2021-12-18 06:43:31,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_sync_single_for_cpu [2021-12-18 06:43:31,565 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-18 06:43:31,565 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-18 06:43:31,566 INFO L130 BoogieDeclarations]: Found specification of procedure isert_allocate_cmd [2021-12-18 06:43:31,566 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_allocate_cmd [2021-12-18 06:43:31,566 INFO L130 BoogieDeclarations]: Found specification of procedure isert_do_control_comp [2021-12-18 06:43:31,566 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_do_control_comp [2021-12-18 06:43:31,566 INFO L130 BoogieDeclarations]: Found specification of procedure isert_put_conn [2021-12-18 06:43:31,566 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_put_conn [2021-12-18 06:43:31,567 INFO L130 BoogieDeclarations]: Found specification of procedure isert_connect_release [2021-12-18 06:43:31,568 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_connect_release [2021-12-18 06:43:31,568 INFO L130 BoogieDeclarations]: Found specification of procedure isert_free_comps [2021-12-18 06:43:31,569 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_free_comps [2021-12-18 06:43:31,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-18 06:43:31,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-18 06:43:31,570 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2021-12-18 06:43:31,570 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2021-12-18 06:43:31,570 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-18 06:43:31,570 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-18 06:43:31,574 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-12-18 06:43:31,574 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-12-18 06:43:31,574 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-12-18 06:43:31,575 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-12-18 06:43:31,575 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-18 06:43:31,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-18 06:43:31,575 INFO L130 BoogieDeclarations]: Found specification of procedure isert_device_put [2021-12-18 06:43:31,575 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_device_put [2021-12-18 06:43:31,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-18 06:43:31,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-18 06:43:31,575 INFO L130 BoogieDeclarations]: Found specification of procedure isert_map_data_buf [2021-12-18 06:43:31,575 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_map_data_buf [2021-12-18 06:43:31,575 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-18 06:43:31,575 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-18 06:43:31,576 INFO L130 BoogieDeclarations]: Found specification of procedure isert_free_conn [2021-12-18 06:43:31,576 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_free_conn [2021-12-18 06:43:31,576 INFO L130 BoogieDeclarations]: Found specification of procedure ib_post_send [2021-12-18 06:43:31,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_post_send [2021-12-18 06:43:31,576 INFO L130 BoogieDeclarations]: Found specification of procedure isert_init_tx_hdrs [2021-12-18 06:43:31,576 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_init_tx_hdrs [2021-12-18 06:43:31,576 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2021-12-18 06:43:31,576 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2021-12-18 06:43:31,576 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-12-18 06:43:31,576 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-12-18 06:43:31,577 INFO L130 BoogieDeclarations]: Found specification of procedure ib_free_fast_reg_page_list [2021-12-18 06:43:31,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_free_fast_reg_page_list [2021-12-18 06:43:31,577 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2021-12-18 06:43:31,577 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2021-12-18 06:43:31,577 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-18 06:43:31,577 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-18 06:43:31,577 INFO L130 BoogieDeclarations]: Found specification of procedure isert_aborted_task [2021-12-18 06:43:31,577 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_aborted_task [2021-12-18 06:43:31,577 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-18 06:43:31,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-18 06:43:31,577 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2021-12-18 06:43:31,578 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2021-12-18 06:43:31,578 INFO L130 BoogieDeclarations]: Found specification of procedure isert_put_response [2021-12-18 06:43:31,578 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_put_response [2021-12-18 06:43:31,578 INFO L130 BoogieDeclarations]: Found specification of procedure isert_wait4flush [2021-12-18 06:43:31,578 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_wait4flush [2021-12-18 06:43:31,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-18 06:43:31,578 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-18 06:43:31,578 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-18 06:43:31,578 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-18 06:43:31,579 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-18 06:43:31,579 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-18 06:43:31,579 INFO L130 BoogieDeclarations]: Found specification of procedure isert_free_login_buf [2021-12-18 06:43:31,579 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_free_login_buf [2021-12-18 06:43:31,579 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-12-18 06:43:31,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-12-18 06:43:31,579 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-12-18 06:43:31,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-12-18 06:43:31,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-18 06:43:31,579 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-18 06:43:31,580 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-18 06:43:31,580 INFO L130 BoogieDeclarations]: Found specification of procedure iscsit_priv_cmd [2021-12-18 06:43:31,580 INFO L138 BoogieDeclarations]: Found implementation of procedure iscsit_priv_cmd [2021-12-18 06:43:31,580 INFO L130 BoogieDeclarations]: Found specification of procedure isert_put_nopin [2021-12-18 06:43:31,580 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_put_nopin [2021-12-18 06:43:31,580 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-18 06:43:31,580 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2021-12-18 06:43:31,580 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2021-12-18 06:43:31,580 INFO L130 BoogieDeclarations]: Found specification of procedure isert_reg_rdma [2021-12-18 06:43:31,580 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_reg_rdma [2021-12-18 06:43:31,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-18 06:43:31,581 INFO L130 BoogieDeclarations]: Found specification of procedure isert_post_recv [2021-12-18 06:43:31,581 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_post_recv [2021-12-18 06:43:31,581 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-12-18 06:43:31,581 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-12-18 06:43:31,581 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-18 06:43:31,581 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-18 06:43:31,581 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2021-12-18 06:43:31,581 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2021-12-18 06:43:31,581 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-12-18 06:43:31,582 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-12-18 06:43:31,582 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-18 06:43:31,582 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-18 06:43:31,582 INFO L130 BoogieDeclarations]: Found specification of procedure isert_rdma_post_recvl [2021-12-18 06:43:31,582 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_rdma_post_recvl [2021-12-18 06:43:31,582 INFO L130 BoogieDeclarations]: Found specification of procedure isert_conn_free_fastreg_pool [2021-12-18 06:43:31,582 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_conn_free_fastreg_pool [2021-12-18 06:43:31,582 INFO L130 BoogieDeclarations]: Found specification of procedure transport_send_check_condition_and_sense [2021-12-18 06:43:31,583 INFO L138 BoogieDeclarations]: Found implementation of procedure transport_send_check_condition_and_sense [2021-12-18 06:43:31,583 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-12-18 06:43:31,583 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-12-18 06:43:31,583 INFO L130 BoogieDeclarations]: Found specification of procedure isert_reg_sig_mr [2021-12-18 06:43:31,583 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_reg_sig_mr [2021-12-18 06:43:31,583 INFO L130 BoogieDeclarations]: Found specification of procedure transport_generic_free_cmd [2021-12-18 06:43:31,583 INFO L138 BoogieDeclarations]: Found implementation of procedure transport_generic_free_cmd [2021-12-18 06:43:31,583 INFO L130 BoogieDeclarations]: Found specification of procedure isert_unmap_tx_desc [2021-12-18 06:43:31,583 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_unmap_tx_desc [2021-12-18 06:43:31,583 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-12-18 06:43:31,584 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-12-18 06:43:31,584 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_device_list_mutex [2021-12-18 06:43:31,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_device_list_mutex [2021-12-18 06:43:31,584 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_device_list_mutex [2021-12-18 06:43:31,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_device_list_mutex [2021-12-18 06:43:31,584 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_weight [2021-12-18 06:43:31,584 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_weight [2021-12-18 06:43:31,584 INFO L130 BoogieDeclarations]: Found specification of procedure isert_handle_prot_cmd [2021-12-18 06:43:31,584 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_handle_prot_cmd [2021-12-18 06:43:31,584 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dereg_mr [2021-12-18 06:43:31,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dereg_mr [2021-12-18 06:43:31,585 INFO L130 BoogieDeclarations]: Found specification of procedure ib_req_notify_cq [2021-12-18 06:43:31,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_req_notify_cq [2021-12-18 06:43:31,585 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-18 06:43:31,585 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-18 06:43:31,585 INFO L130 BoogieDeclarations]: Found specification of procedure isert_check_pi_status [2021-12-18 06:43:31,585 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_check_pi_status [2021-12-18 06:43:31,585 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2021-12-18 06:43:31,585 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2021-12-18 06:43:31,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-18 06:43:31,585 INFO L130 BoogieDeclarations]: Found specification of procedure isert_create_send_desc [2021-12-18 06:43:31,586 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_create_send_desc [2021-12-18 06:43:31,586 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-18 06:43:31,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-18 06:43:31,586 INFO L130 BoogieDeclarations]: Found specification of procedure ib_sg_dma_len [2021-12-18 06:43:31,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_sg_dma_len [2021-12-18 06:43:31,589 INFO L130 BoogieDeclarations]: Found specification of procedure isert_fast_reg_mr [2021-12-18 06:43:31,589 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_fast_reg_mr [2021-12-18 06:43:31,589 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-18 06:43:31,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-18 06:43:31,589 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2021-12-18 06:43:31,589 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2021-12-18 06:43:31,589 INFO L130 BoogieDeclarations]: Found specification of procedure isert_post_response [2021-12-18 06:43:31,589 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_post_response [2021-12-18 06:43:31,589 INFO L130 BoogieDeclarations]: Found specification of procedure ib_alloc_fast_reg_mr [2021-12-18 06:43:31,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_alloc_fast_reg_mr [2021-12-18 06:43:31,591 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-12-18 06:43:31,591 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-12-18 06:43:31,591 INFO L130 BoogieDeclarations]: Found specification of procedure isert_rx_login_req [2021-12-18 06:43:31,591 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_rx_login_req [2021-12-18 06:43:31,591 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2021-12-18 06:43:31,591 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2021-12-18 06:43:31,591 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_mapping_error [2021-12-18 06:43:31,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_mapping_error [2021-12-18 06:43:31,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-18 06:43:31,591 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-12-18 06:43:31,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-12-18 06:43:31,592 INFO L130 BoogieDeclarations]: Found specification of procedure target_put_sess_cmd [2021-12-18 06:43:31,592 INFO L138 BoogieDeclarations]: Found implementation of procedure target_put_sess_cmd [2021-12-18 06:43:31,592 INFO L130 BoogieDeclarations]: Found specification of procedure isert_set_dif_domain [2021-12-18 06:43:31,592 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_set_dif_domain [2021-12-18 06:43:31,592 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2021-12-18 06:43:31,592 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2021-12-18 06:43:31,592 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dealloc_pd [2021-12-18 06:43:31,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dealloc_pd [2021-12-18 06:43:31,592 INFO L130 BoogieDeclarations]: Found specification of procedure ib_alloc_fast_reg_page_list [2021-12-18 06:43:31,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_alloc_fast_reg_page_list [2021-12-18 06:43:31,593 INFO L130 BoogieDeclarations]: Found specification of procedure iscsit_build_rsp_pdu [2021-12-18 06:43:31,593 INFO L138 BoogieDeclarations]: Found implementation of procedure iscsit_build_rsp_pdu [2021-12-18 06:43:32,436 INFO L236 CfgBuilder]: Building ICFG [2021-12-18 06:43:32,439 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-18 06:43:32,551 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-18 06:43:37,460 INFO L277 CfgBuilder]: Performing block encoding [2021-12-18 06:43:37,475 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-18 06:43:37,475 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-18 06:43:37,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 06:43:37 BoogieIcfgContainer [2021-12-18 06:43:37,479 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-18 06:43:37,482 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-18 06:43:37,482 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-18 06:43:37,485 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-18 06:43:37,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 06:43:26" (1/3) ... [2021-12-18 06:43:37,485 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75c65e3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 06:43:37, skipping insertion in model container [2021-12-18 06:43:37,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:43:31" (2/3) ... [2021-12-18 06:43:37,486 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75c65e3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 06:43:37, skipping insertion in model container [2021-12-18 06:43:37,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 06:43:37" (3/3) ... [2021-12-18 06:43:37,487 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 [2021-12-18 06:43:37,494 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-18 06:43:37,495 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-18 06:43:37,538 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-18 06:43:37,554 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-18 06:43:37,554 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-18 06:43:37,607 INFO L276 IsEmpty]: Start isEmpty. Operand has 2324 states, 1602 states have (on average 1.3258426966292134) internal successors, (2124), 1662 states have internal predecessors, (2124), 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) [2021-12-18 06:43:37,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-12-18 06:43:37,617 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 06:43:37,617 INFO L514 BasicCegarLoop]: 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] [2021-12-18 06:43:37,618 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 06:43:37,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 06:43:37,622 INFO L85 PathProgramCache]: Analyzing trace with hash 287510443, now seen corresponding path program 1 times [2021-12-18 06:43:37,627 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 06:43:37,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749722028] [2021-12-18 06:43:37,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 06:43:37,629 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 06:43:37,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:43:38,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:43:38,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:43:38,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:43:38,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:43:38,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:43:38,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:43:38,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 06:43:38,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:43:38,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:43:38,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:43:38,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-18 06:43:38,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:43:38,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:43:38,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:43:38,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-18 06:43:38,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:43:38,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:43:38,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:43:38,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 06:43:38,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:43:38,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:43:38,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:43:38,309 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-12-18 06:43:38,309 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 06:43:38,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749722028] [2021-12-18 06:43:38,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749722028] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 06:43:38,310 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 06:43:38,311 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 06:43:38,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136608409] [2021-12-18 06:43:38,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 06:43:38,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 06:43:38,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 06:43:38,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 06:43:38,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-18 06:43:38,341 INFO L87 Difference]: Start difference. First operand has 2324 states, 1602 states have (on average 1.3258426966292134) internal successors, (2124), 1662 states have internal predecessors, (2124), 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 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) [2021-12-18 06:43:40,694 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 [] [2021-12-18 06:43:45,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 06:43:45,551 INFO L93 Difference]: Finished difference Result 5414 states and 8111 transitions. [2021-12-18 06:43:45,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 06:43:45,553 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 [2021-12-18 06:43:45,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 06:43:45,588 INFO L225 Difference]: With dead ends: 5414 [2021-12-18 06:43:45,589 INFO L226 Difference]: Without dead ends: 3072 [2021-12-18 06:43:45,607 INFO L932 BasicCegarLoop]: 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 [2021-12-18 06:43:45,610 INFO L933 BasicCegarLoop]: 2948 mSDtfsCounter, 6770 mSDsluCounter, 1593 mSDsCounter, 0 mSdLazyCounter, 1589 mSolverCounterSat, 3808 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7108 SdHoareTripleChecker+Valid, 4541 SdHoareTripleChecker+Invalid, 5398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3808 IncrementalHoareTripleChecker+Valid, 1589 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2021-12-18 06:43:45,610 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7108 Valid, 4541 Invalid, 5398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3808 Valid, 1589 Invalid, 1 Unknown, 0 Unchecked, 6.8s Time] [2021-12-18 06:43:45,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3072 states. [2021-12-18 06:43:45,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3072 to 2314. [2021-12-18 06:43:45,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2314 states, 1597 states have (on average 1.313713212273012) internal successors, (2098), 1647 states have internal predecessors, (2098), 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) [2021-12-18 06:43:45,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2314 states to 2314 states and 3252 transitions. [2021-12-18 06:43:45,825 INFO L78 Accepts]: Start accepts. Automaton has 2314 states and 3252 transitions. Word has length 82 [2021-12-18 06:43:45,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 06:43:45,840 INFO L470 AbstractCegarLoop]: Abstraction has 2314 states and 3252 transitions. [2021-12-18 06:43:45,840 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (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) [2021-12-18 06:43:45,840 INFO L276 IsEmpty]: Start isEmpty. Operand 2314 states and 3252 transitions. [2021-12-18 06:43:45,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-12-18 06:43:45,843 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 06:43:45,843 INFO L514 BasicCegarLoop]: 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] [2021-12-18 06:43:45,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-18 06:43:45,844 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 06:43:45,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 06:43:45,844 INFO L85 PathProgramCache]: Analyzing trace with hash 321914562, now seen corresponding path program 1 times [2021-12-18 06:43:45,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 06:43:45,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650996820] [2021-12-18 06:43:45,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 06:43:45,844 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 06:43:45,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:43:46,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:43:46,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:43:46,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:43:46,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:43:46,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:43:46,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:43:46,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 06:43:46,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:43:46,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:43:46,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:43:46,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-18 06:43:46,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:43:46,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:43:46,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:43:46,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-18 06:43:46,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:43:46,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:43:46,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:43:46,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 06:43:46,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:43:46,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:43:46,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:43:46,177 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-12-18 06:43:46,177 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 06:43:46,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650996820] [2021-12-18 06:43:46,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650996820] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 06:43:46,179 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 06:43:46,179 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 06:43:46,179 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783007682] [2021-12-18 06:43:46,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 06:43:46,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 06:43:46,182 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 06:43:46,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 06:43:46,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-18 06:43:46,183 INFO L87 Difference]: Start difference. First operand 2314 states and 3252 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) [2021-12-18 06:43:48,485 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:43:50,514 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:43:58,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 06:43:58,097 INFO L93 Difference]: Finished difference Result 3072 states and 4573 transitions. [2021-12-18 06:43:58,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 06:43:58,101 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 [2021-12-18 06:43:58,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 06:43:58,150 INFO L225 Difference]: With dead ends: 3072 [2021-12-18 06:43:58,150 INFO L226 Difference]: Without dead ends: 3069 [2021-12-18 06:43:58,169 INFO L932 BasicCegarLoop]: 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 [2021-12-18 06:43:58,170 INFO L933 BasicCegarLoop]: 2908 mSDtfsCounter, 5397 mSDsluCounter, 3838 mSDsCounter, 0 mSdLazyCounter, 3095 mSolverCounterSat, 2693 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5737 SdHoareTripleChecker+Valid, 6746 SdHoareTripleChecker+Invalid, 5790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2693 IncrementalHoareTripleChecker+Valid, 3095 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2021-12-18 06:43:58,170 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5737 Valid, 6746 Invalid, 5790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2693 Valid, 3095 Invalid, 2 Unknown, 0 Unchecked, 11.6s Time] [2021-12-18 06:43:58,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3069 states. [2021-12-18 06:43:58,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3069 to 2313. [2021-12-18 06:43:58,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2313 states, 1597 states have (on average 1.3130870381966186) internal successors, (2097), 1646 states have internal predecessors, (2097), 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) [2021-12-18 06:43:58,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2313 states to 2313 states and 3250 transitions. [2021-12-18 06:43:58,310 INFO L78 Accepts]: Start accepts. Automaton has 2313 states and 3250 transitions. Word has length 83 [2021-12-18 06:43:58,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 06:43:58,312 INFO L470 AbstractCegarLoop]: Abstraction has 2313 states and 3250 transitions. [2021-12-18 06:43:58,312 INFO L471 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) [2021-12-18 06:43:58,313 INFO L276 IsEmpty]: Start isEmpty. Operand 2313 states and 3250 transitions. [2021-12-18 06:43:58,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-12-18 06:43:58,315 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 06:43:58,315 INFO L514 BasicCegarLoop]: 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] [2021-12-18 06:43:58,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-18 06:43:58,315 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 06:43:58,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 06:43:58,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1388447118, now seen corresponding path program 1 times [2021-12-18 06:43:58,316 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 06:43:58,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290981716] [2021-12-18 06:43:58,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 06:43:58,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 06:43:58,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:43:58,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:43:58,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:43:58,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:43:58,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:43:58,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:43:58,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:43:58,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 06:43:58,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:43:58,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:43:58,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:43:58,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-18 06:43:58,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:43:58,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:43:58,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:43:58,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-18 06:43:58,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:43:58,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:43:58,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:43:58,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 06:43:58,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:43:58,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:43:58,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:43:58,649 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-12-18 06:43:58,650 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 06:43:58,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290981716] [2021-12-18 06:43:58,650 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290981716] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 06:43:58,650 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 06:43:58,650 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 06:43:58,651 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875116011] [2021-12-18 06:43:58,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 06:43:58,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 06:43:58,651 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 06:43:58,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 06:43:58,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-18 06:43:58,652 INFO L87 Difference]: Start difference. First operand 2313 states and 3250 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) [2021-12-18 06:44:00,975 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:44:05,030 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:44:08,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 06:44:08,950 INFO L93 Difference]: Finished difference Result 3071 states and 4571 transitions. [2021-12-18 06:44:08,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 06:44:08,950 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 [2021-12-18 06:44:08,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 06:44:08,966 INFO L225 Difference]: With dead ends: 3071 [2021-12-18 06:44:08,967 INFO L226 Difference]: Without dead ends: 3068 [2021-12-18 06:44:08,969 INFO L932 BasicCegarLoop]: 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 [2021-12-18 06:44:08,972 INFO L933 BasicCegarLoop]: 2900 mSDtfsCounter, 5779 mSDsluCounter, 2636 mSDsCounter, 0 mSdLazyCounter, 2333 mSolverCounterSat, 2846 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6122 SdHoareTripleChecker+Valid, 5536 SdHoareTripleChecker+Invalid, 5181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2846 IncrementalHoareTripleChecker+Valid, 2333 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2021-12-18 06:44:08,973 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6122 Valid, 5536 Invalid, 5181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2846 Valid, 2333 Invalid, 2 Unknown, 0 Unchecked, 10.1s Time] [2021-12-18 06:44:08,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3068 states. [2021-12-18 06:44:09,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3068 to 2312. [2021-12-18 06:44:09,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2312 states, 1597 states have (on average 1.3124608641202253) internal successors, (2096), 1645 states have internal predecessors, (2096), 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) [2021-12-18 06:44:09,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2312 states to 2312 states and 3248 transitions. [2021-12-18 06:44:09,066 INFO L78 Accepts]: Start accepts. Automaton has 2312 states and 3248 transitions. Word has length 84 [2021-12-18 06:44:09,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 06:44:09,069 INFO L470 AbstractCegarLoop]: Abstraction has 2312 states and 3248 transitions. [2021-12-18 06:44:09,069 INFO L471 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) [2021-12-18 06:44:09,069 INFO L276 IsEmpty]: Start isEmpty. Operand 2312 states and 3248 transitions. [2021-12-18 06:44:09,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-12-18 06:44:09,071 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 06:44:09,071 INFO L514 BasicCegarLoop]: 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] [2021-12-18 06:44:09,072 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-18 06:44:09,072 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 06:44:09,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 06:44:09,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1031885892, now seen corresponding path program 1 times [2021-12-18 06:44:09,072 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 06:44:09,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4103199] [2021-12-18 06:44:09,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 06:44:09,073 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 06:44:09,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:09,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:44:09,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:09,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:09,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:09,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:44:09,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:09,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 06:44:09,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:09,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:09,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:09,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-18 06:44:09,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:09,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:09,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:09,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-18 06:44:09,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:09,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:09,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:09,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 06:44:09,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:09,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:09,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:09,330 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-12-18 06:44:09,331 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 06:44:09,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4103199] [2021-12-18 06:44:09,331 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4103199] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 06:44:09,331 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 06:44:09,331 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 06:44:09,331 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716248457] [2021-12-18 06:44:09,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 06:44:09,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 06:44:09,333 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 06:44:09,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 06:44:09,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-18 06:44:09,333 INFO L87 Difference]: Start difference. First operand 2312 states and 3248 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) [2021-12-18 06:44:13,505 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 [] [2021-12-18 06:44:20,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 06:44:20,169 INFO L93 Difference]: Finished difference Result 7923 states and 11566 transitions. [2021-12-18 06:44:20,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 06:44:20,170 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 [2021-12-18 06:44:20,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 06:44:20,199 INFO L225 Difference]: With dead ends: 7923 [2021-12-18 06:44:20,199 INFO L226 Difference]: Without dead ends: 5632 [2021-12-18 06:44:20,210 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-18 06:44:20,211 INFO L933 BasicCegarLoop]: 3285 mSDtfsCounter, 9370 mSDsluCounter, 4054 mSDsCounter, 0 mSdLazyCounter, 3378 mSolverCounterSat, 6180 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9684 SdHoareTripleChecker+Valid, 7339 SdHoareTripleChecker+Invalid, 9559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6180 IncrementalHoareTripleChecker+Valid, 3378 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2021-12-18 06:44:20,211 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9684 Valid, 7339 Invalid, 9559 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6180 Valid, 3378 Invalid, 1 Unknown, 0 Unchecked, 10.4s Time] [2021-12-18 06:44:20,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5632 states. [2021-12-18 06:44:20,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5632 to 4126. [2021-12-18 06:44:20,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4126 states, 2862 states have (on average 1.3095737246680643) internal successors, (3748), 2950 states have internal predecessors, (3748), 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) [2021-12-18 06:44:20,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4126 states to 4126 states and 5744 transitions. [2021-12-18 06:44:20,389 INFO L78 Accepts]: Start accepts. Automaton has 4126 states and 5744 transitions. Word has length 86 [2021-12-18 06:44:20,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 06:44:20,389 INFO L470 AbstractCegarLoop]: Abstraction has 4126 states and 5744 transitions. [2021-12-18 06:44:20,389 INFO L471 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) [2021-12-18 06:44:20,390 INFO L276 IsEmpty]: Start isEmpty. Operand 4126 states and 5744 transitions. [2021-12-18 06:44:20,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-12-18 06:44:20,393 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 06:44:20,394 INFO L514 BasicCegarLoop]: 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] [2021-12-18 06:44:20,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-18 06:44:20,394 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 06:44:20,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 06:44:20,394 INFO L85 PathProgramCache]: Analyzing trace with hash 91222853, now seen corresponding path program 1 times [2021-12-18 06:44:20,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 06:44:20,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717597617] [2021-12-18 06:44:20,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 06:44:20,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 06:44:20,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:20,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:44:20,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:20,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:20,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:20,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:44:20,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:20,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 06:44:20,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:20,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:20,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:20,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-18 06:44:20,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:20,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:20,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:20,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-18 06:44:20,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:20,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:20,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:20,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 06:44:20,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:20,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:20,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:20,677 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-12-18 06:44:20,677 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 06:44:20,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717597617] [2021-12-18 06:44:20,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717597617] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 06:44:20,677 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 06:44:20,677 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 06:44:20,678 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773128003] [2021-12-18 06:44:20,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 06:44:20,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 06:44:20,678 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 06:44:20,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 06:44:20,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-18 06:44:20,679 INFO L87 Difference]: Start difference. First operand 4126 states and 5744 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) [2021-12-18 06:44:23,959 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 [] [2021-12-18 06:44:26,103 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:44:29,472 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:44:31,512 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 [] [2021-12-18 06:44:37,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 06:44:37,657 INFO L93 Difference]: Finished difference Result 5614 states and 8322 transitions. [2021-12-18 06:44:37,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 06:44:37,658 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 [2021-12-18 06:44:37,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 06:44:37,684 INFO L225 Difference]: With dead ends: 5614 [2021-12-18 06:44:37,684 INFO L226 Difference]: Without dead ends: 5611 [2021-12-18 06:44:37,689 INFO L932 BasicCegarLoop]: 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 [2021-12-18 06:44:37,689 INFO L933 BasicCegarLoop]: 2889 mSDtfsCounter, 5389 mSDsluCounter, 2742 mSDsCounter, 0 mSdLazyCounter, 2319 mSolverCounterSat, 2699 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5733 SdHoareTripleChecker+Valid, 5631 SdHoareTripleChecker+Invalid, 5022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2699 IncrementalHoareTripleChecker+Valid, 2319 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.6s IncrementalHoareTripleChecker+Time [2021-12-18 06:44:37,690 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5733 Valid, 5631 Invalid, 5022 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2699 Valid, 2319 Invalid, 4 Unknown, 0 Unchecked, 16.6s Time] [2021-12-18 06:44:37,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5611 states. [2021-12-18 06:44:37,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5611 to 4125. [2021-12-18 06:44:37,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4125 states, 2862 states have (on average 1.3092243186582808) internal successors, (3747), 2949 states have internal predecessors, (3747), 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) [2021-12-18 06:44:37,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4125 states to 4125 states and 5742 transitions. [2021-12-18 06:44:37,886 INFO L78 Accepts]: Start accepts. Automaton has 4125 states and 5742 transitions. Word has length 85 [2021-12-18 06:44:37,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 06:44:37,888 INFO L470 AbstractCegarLoop]: Abstraction has 4125 states and 5742 transitions. [2021-12-18 06:44:37,888 INFO L471 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) [2021-12-18 06:44:37,888 INFO L276 IsEmpty]: Start isEmpty. Operand 4125 states and 5742 transitions. [2021-12-18 06:44:37,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-12-18 06:44:37,891 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 06:44:37,891 INFO L514 BasicCegarLoop]: 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] [2021-12-18 06:44:37,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-18 06:44:37,891 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 06:44:37,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 06:44:37,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1468018831, now seen corresponding path program 1 times [2021-12-18 06:44:37,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 06:44:37,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717456531] [2021-12-18 06:44:37,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 06:44:37,892 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 06:44:37,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:38,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:44:38,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:38,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:38,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:38,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:44:38,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:38,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 06:44:38,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:38,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:38,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:38,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-18 06:44:38,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:38,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:38,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:38,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-18 06:44:38,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:38,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:38,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:38,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 06:44:38,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:38,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:38,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:38,181 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-12-18 06:44:38,181 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 06:44:38,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717456531] [2021-12-18 06:44:38,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717456531] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 06:44:38,181 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 06:44:38,182 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 06:44:38,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107784748] [2021-12-18 06:44:38,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 06:44:38,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 06:44:38,232 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 06:44:38,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 06:44:38,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-18 06:44:38,233 INFO L87 Difference]: Start difference. First operand 4125 states and 5742 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) [2021-12-18 06:44:41,670 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 [] [2021-12-18 06:44:45,022 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 [] [2021-12-18 06:44:50,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 06:44:50,490 INFO L93 Difference]: Finished difference Result 5633 states and 8333 transitions. [2021-12-18 06:44:50,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 06:44:50,490 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 [2021-12-18 06:44:50,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 06:44:50,530 INFO L225 Difference]: With dead ends: 5633 [2021-12-18 06:44:50,531 INFO L226 Difference]: Without dead ends: 5629 [2021-12-18 06:44:50,536 INFO L932 BasicCegarLoop]: 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 [2021-12-18 06:44:50,537 INFO L933 BasicCegarLoop]: 2890 mSDtfsCounter, 5337 mSDsluCounter, 2767 mSDsCounter, 0 mSdLazyCounter, 2370 mSolverCounterSat, 2686 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5658 SdHoareTripleChecker+Valid, 5657 SdHoareTripleChecker+Invalid, 5058 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2686 IncrementalHoareTripleChecker+Valid, 2370 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2021-12-18 06:44:50,537 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5658 Valid, 5657 Invalid, 5058 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2686 Valid, 2370 Invalid, 2 Unknown, 0 Unchecked, 11.9s Time] [2021-12-18 06:44:50,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5629 states. [2021-12-18 06:44:50,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5629 to 4141. [2021-12-18 06:44:50,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4141 states, 2874 states have (on average 1.3068893528183716) internal successors, (3756), 2959 states have internal predecessors, (3756), 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) [2021-12-18 06:44:50,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4141 states to 4141 states and 5749 transitions. [2021-12-18 06:44:50,721 INFO L78 Accepts]: Start accepts. Automaton has 4141 states and 5749 transitions. Word has length 86 [2021-12-18 06:44:50,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 06:44:50,721 INFO L470 AbstractCegarLoop]: Abstraction has 4141 states and 5749 transitions. [2021-12-18 06:44:50,721 INFO L471 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) [2021-12-18 06:44:50,721 INFO L276 IsEmpty]: Start isEmpty. Operand 4141 states and 5749 transitions. [2021-12-18 06:44:50,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-12-18 06:44:50,722 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 06:44:50,723 INFO L514 BasicCegarLoop]: 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] [2021-12-18 06:44:50,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-18 06:44:50,723 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 06:44:50,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 06:44:50,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1735101384, now seen corresponding path program 1 times [2021-12-18 06:44:50,723 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 06:44:50,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549220025] [2021-12-18 06:44:50,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 06:44:50,724 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 06:44:50,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:50,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:44:50,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:50,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:50,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:50,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:44:50,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:50,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 06:44:50,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:50,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:50,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:50,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-18 06:44:50,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:50,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:50,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:50,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-18 06:44:50,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:51,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:51,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:51,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 06:44:51,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:51,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:51,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:51,040 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-12-18 06:44:51,041 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 06:44:51,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549220025] [2021-12-18 06:44:51,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549220025] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 06:44:51,041 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 06:44:51,041 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 06:44:51,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393789795] [2021-12-18 06:44:51,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 06:44:51,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 06:44:51,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 06:44:51,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 06:44:51,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-18 06:44:51,043 INFO L87 Difference]: Start difference. First operand 4141 states and 5749 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) [2021-12-18 06:44:55,724 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 [] [2021-12-18 06:44:57,764 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 [] [2021-12-18 06:45:03,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 06:45:03,702 INFO L93 Difference]: Finished difference Result 6160 states and 9006 transitions. [2021-12-18 06:45:03,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 06:45:03,702 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 [2021-12-18 06:45:03,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 06:45:03,764 INFO L225 Difference]: With dead ends: 6160 [2021-12-18 06:45:03,764 INFO L226 Difference]: Without dead ends: 6140 [2021-12-18 06:45:03,787 INFO L932 BasicCegarLoop]: 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 [2021-12-18 06:45:03,788 INFO L933 BasicCegarLoop]: 2951 mSDtfsCounter, 5535 mSDsluCounter, 3976 mSDsCounter, 0 mSdLazyCounter, 3468 mSolverCounterSat, 2806 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5886 SdHoareTripleChecker+Valid, 6927 SdHoareTripleChecker+Invalid, 6276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2806 IncrementalHoareTripleChecker+Valid, 3468 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2021-12-18 06:45:03,788 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5886 Valid, 6927 Invalid, 6276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2806 Valid, 3468 Invalid, 2 Unknown, 0 Unchecked, 12.3s Time] [2021-12-18 06:45:03,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6140 states. [2021-12-18 06:45:04,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6140 to 4551. [2021-12-18 06:45:04,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4551 states, 3145 states have (on average 1.2960254372019078) internal successors, (4076), 3235 states have internal predecessors, (4076), 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) [2021-12-18 06:45:04,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4551 states to 4551 states and 6239 transitions. [2021-12-18 06:45:04,094 INFO L78 Accepts]: Start accepts. Automaton has 4551 states and 6239 transitions. Word has length 87 [2021-12-18 06:45:04,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 06:45:04,095 INFO L470 AbstractCegarLoop]: Abstraction has 4551 states and 6239 transitions. [2021-12-18 06:45:04,095 INFO L471 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) [2021-12-18 06:45:04,095 INFO L276 IsEmpty]: Start isEmpty. Operand 4551 states and 6239 transitions. [2021-12-18 06:45:04,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-12-18 06:45:04,097 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 06:45:04,098 INFO L514 BasicCegarLoop]: 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] [2021-12-18 06:45:04,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-18 06:45:04,098 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 06:45:04,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 06:45:04,098 INFO L85 PathProgramCache]: Analyzing trace with hash 2006590099, now seen corresponding path program 1 times [2021-12-18 06:45:04,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 06:45:04,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470807609] [2021-12-18 06:45:04,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 06:45:04,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 06:45:04,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:04,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:45:04,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:04,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:04,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:04,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:45:04,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:04,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 06:45:04,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:04,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:04,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:04,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-18 06:45:04,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:04,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:04,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:04,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-18 06:45:04,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:04,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:04,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:04,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 06:45:04,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:04,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:04,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:04,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 06:45:04,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:04,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-18 06:45:04,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:04,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-18 06:45:04,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:04,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 06:45:04,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:04,390 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-12-18 06:45:04,391 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 06:45:04,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470807609] [2021-12-18 06:45:04,391 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470807609] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 06:45:04,391 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 06:45:04,391 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 06:45:04,391 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117669032] [2021-12-18 06:45:04,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 06:45:04,392 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 06:45:04,392 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 06:45:04,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 06:45:04,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-18 06:45:04,393 INFO L87 Difference]: Start difference. First operand 4551 states and 6239 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) [2021-12-18 06:45:09,507 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 [] [2021-12-18 06:45:16,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 06:45:16,005 INFO L93 Difference]: Finished difference Result 6765 states and 10048 transitions. [2021-12-18 06:45:16,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-18 06:45:16,006 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 [2021-12-18 06:45:16,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 06:45:16,038 INFO L225 Difference]: With dead ends: 6765 [2021-12-18 06:45:16,038 INFO L226 Difference]: Without dead ends: 6744 [2021-12-18 06:45:16,046 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2021-12-18 06:45:16,047 INFO L933 BasicCegarLoop]: 2703 mSDtfsCounter, 5574 mSDsluCounter, 2839 mSDsCounter, 0 mSdLazyCounter, 5249 mSolverCounterSat, 4538 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5855 SdHoareTripleChecker+Valid, 5542 SdHoareTripleChecker+Invalid, 9788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4538 IncrementalHoareTripleChecker+Valid, 5249 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2021-12-18 06:45:16,047 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5855 Valid, 5542 Invalid, 9788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4538 Valid, 5249 Invalid, 1 Unknown, 0 Unchecked, 11.2s Time] [2021-12-18 06:45:16,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6744 states. [2021-12-18 06:45:16,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6744 to 4532. [2021-12-18 06:45:16,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4532 states, 3137 states have (on average 1.2955052598023589) internal successors, (4064), 3224 states have internal predecessors, (4064), 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) [2021-12-18 06:45:16,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4532 states to 4532 states and 6208 transitions. [2021-12-18 06:45:16,258 INFO L78 Accepts]: Start accepts. Automaton has 4532 states and 6208 transitions. Word has length 106 [2021-12-18 06:45:16,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 06:45:16,259 INFO L470 AbstractCegarLoop]: Abstraction has 4532 states and 6208 transitions. [2021-12-18 06:45:16,259 INFO L471 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) [2021-12-18 06:45:16,259 INFO L276 IsEmpty]: Start isEmpty. Operand 4532 states and 6208 transitions. [2021-12-18 06:45:16,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-12-18 06:45:16,268 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 06:45:16,268 INFO L514 BasicCegarLoop]: 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] [2021-12-18 06:45:16,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-18 06:45:16,268 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 06:45:16,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 06:45:16,269 INFO L85 PathProgramCache]: Analyzing trace with hash 241238199, now seen corresponding path program 1 times [2021-12-18 06:45:16,269 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 06:45:16,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521786528] [2021-12-18 06:45:16,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 06:45:16,269 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 06:45:16,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:16,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:45:16,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:16,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:16,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:16,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:45:16,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:16,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 06:45:16,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:16,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:16,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:16,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-18 06:45:16,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:16,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:16,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:16,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-18 06:45:16,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:16,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:16,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:16,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 06:45:16,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:16,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:16,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:16,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-18 06:45:16,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:16,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-18 06:45:16,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:16,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-18 06:45:16,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:16,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-18 06:45:16,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:16,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-18 06:45:16,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:16,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-18 06:45:16,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:16,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-18 06:45:16,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:16,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-18 06:45:16,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:16,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-18 06:45:16,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:16,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-18 06:45:16,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:16,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-18 06:45:16,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:16,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-18 06:45:16,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:16,641 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-12-18 06:45:16,642 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 06:45:16,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521786528] [2021-12-18 06:45:16,642 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521786528] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 06:45:16,642 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 06:45:16,642 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-18 06:45:16,642 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864866913] [2021-12-18 06:45:16,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 06:45:16,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-18 06:45:16,643 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 06:45:16,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-18 06:45:16,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-12-18 06:45:16,644 INFO L87 Difference]: Start difference. First operand 4532 states and 6208 transitions. Second operand has 8 states, 8 states have (on average 10.875) internal successors, (87), 3 states have internal predecessors, (87), 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) [2021-12-18 06:45:20,563 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:45:24,682 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:45:33,701 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:45:35,818 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:45:36,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 06:45:36,303 INFO L93 Difference]: Finished difference Result 6805 states and 10077 transitions. [2021-12-18 06:45:36,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-18 06:45:36,304 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 3 states have internal predecessors, (87), 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 167 [2021-12-18 06:45:36,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 06:45:36,329 INFO L225 Difference]: With dead ends: 6805 [2021-12-18 06:45:36,329 INFO L226 Difference]: Without dead ends: 6802 [2021-12-18 06:45:36,332 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2021-12-18 06:45:36,333 INFO L933 BasicCegarLoop]: 2742 mSDtfsCounter, 8214 mSDsluCounter, 2233 mSDsCounter, 0 mSdLazyCounter, 6825 mSolverCounterSat, 6793 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8331 SdHoareTripleChecker+Valid, 4975 SdHoareTripleChecker+Invalid, 13622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6793 IncrementalHoareTripleChecker+Valid, 6825 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.0s IncrementalHoareTripleChecker+Time [2021-12-18 06:45:36,333 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8331 Valid, 4975 Invalid, 13622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6793 Valid, 6825 Invalid, 4 Unknown, 0 Unchecked, 19.0s Time] [2021-12-18 06:45:36,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6802 states. [2021-12-18 06:45:36,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6802 to 4531. [2021-12-18 06:45:36,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4531 states, 3137 states have (on average 1.2948677080012752) internal successors, (4062), 3223 states have internal predecessors, (4062), 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) [2021-12-18 06:45:36,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4531 states to 4531 states and 6205 transitions. [2021-12-18 06:45:36,537 INFO L78 Accepts]: Start accepts. Automaton has 4531 states and 6205 transitions. Word has length 167 [2021-12-18 06:45:36,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 06:45:36,538 INFO L470 AbstractCegarLoop]: Abstraction has 4531 states and 6205 transitions. [2021-12-18 06:45:36,538 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 3 states have internal predecessors, (87), 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) [2021-12-18 06:45:36,538 INFO L276 IsEmpty]: Start isEmpty. Operand 4531 states and 6205 transitions. [2021-12-18 06:45:36,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2021-12-18 06:45:36,551 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 06:45:36,551 INFO L514 BasicCegarLoop]: 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, 1] [2021-12-18 06:45:36,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-18 06:45:36,551 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 06:45:36,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 06:45:36,552 INFO L85 PathProgramCache]: Analyzing trace with hash 475005978, now seen corresponding path program 1 times [2021-12-18 06:45:36,552 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 06:45:36,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287926668] [2021-12-18 06:45:36,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 06:45:36,552 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 06:45:36,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:36,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:45:36,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:36,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:36,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:36,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:45:36,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:36,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 06:45:36,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:36,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:36,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:36,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-18 06:45:36,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:36,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:36,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:36,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-18 06:45:36,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:36,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:36,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:36,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 06:45:36,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:36,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:36,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:36,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 06:45:36,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:36,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-18 06:45:36,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:36,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 06:45:36,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:36,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 06:45:36,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:36,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 06:45:36,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:36,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-18 06:45:36,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:36,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 06:45:36,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:36,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-18 06:45:36,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:36,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-18 06:45:36,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:37,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-18 06:45:37,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:37,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-18 06:45:37,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:37,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-18 06:45:37,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:37,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2021-12-18 06:45:37,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:37,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-18 06:45:37,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:37,057 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-12-18 06:45:37,057 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 06:45:37,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287926668] [2021-12-18 06:45:37,057 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287926668] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 06:45:37,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1121854810] [2021-12-18 06:45:37,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 06:45:37,058 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 06:45:37,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 06:45:37,059 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) [2021-12-18 06:45:37,087 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-18 06:45:38,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:38,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 3159 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-18 06:45:38,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 06:45:38,295 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2021-12-18 06:45:38,295 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 06:45:38,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1121854810] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 06:45:38,296 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 06:45:38,296 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [13] total 14 [2021-12-18 06:45:38,296 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511811971] [2021-12-18 06:45:38,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 06:45:38,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 06:45:38,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 06:45:38,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 06:45:38,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2021-12-18 06:45:38,297 INFO L87 Difference]: Start difference. First operand 4531 states and 6205 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 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) [2021-12-18 06:45:38,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 06:45:38,472 INFO L93 Difference]: Finished difference Result 4531 states and 6205 transitions. [2021-12-18 06:45:38,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 06:45:38,472 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 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 190 [2021-12-18 06:45:38,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 06:45:38,473 INFO L225 Difference]: With dead ends: 4531 [2021-12-18 06:45:38,473 INFO L226 Difference]: Without dead ends: 0 [2021-12-18 06:45:38,488 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2021-12-18 06:45:38,489 INFO L933 BasicCegarLoop]: 3200 mSDtfsCounter, 68 mSDsluCounter, 3120 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 6320 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 [2021-12-18 06:45:38,490 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 6320 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 06:45:38,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-18 06:45:38,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-18 06:45:38,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-18 06:45:38,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-18 06:45:38,492 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 190 [2021-12-18 06:45:38,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 06:45:38,492 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-18 06:45:38,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 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) [2021-12-18 06:45:38,492 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-18 06:45:38,492 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-18 06:45:38,494 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-18 06:45:38,526 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-12-18 06:45:38,711 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-12-18 06:45:38,713 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-18 06:45:49,309 WARN L227 SmtUtils]: Spent 10.58s 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) [2021-12-18 06:45:58,942 WARN L227 SmtUtils]: Spent 9.63s 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) [2021-12-18 06:46:08,570 WARN L227 SmtUtils]: Spent 9.63s 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) [2021-12-18 06:46:18,191 WARN L227 SmtUtils]: Spent 9.62s 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) [2021-12-18 06:46:27,827 WARN L227 SmtUtils]: Spent 9.63s 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) [2021-12-18 06:46:37,438 WARN L227 SmtUtils]: Spent 9.61s 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) [2021-12-18 06:46:47,062 WARN L227 SmtUtils]: Spent 9.61s 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) [2021-12-18 06:46:57,114 WARN L227 SmtUtils]: Spent 10.05s 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) [2021-12-18 06:47:06,710 WARN L227 SmtUtils]: Spent 9.59s 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) [2021-12-18 06:47:16,819 WARN L227 SmtUtils]: Spent 10.11s 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) [2021-12-18 06:47:26,475 WARN L227 SmtUtils]: Spent 9.65s 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) [2021-12-18 06:47:36,558 WARN L227 SmtUtils]: Spent 10.08s 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) [2021-12-18 06:47:46,627 WARN L227 SmtUtils]: Spent 10.07s 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) [2021-12-18 06:47:56,695 WARN L227 SmtUtils]: Spent 10.07s 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) [2021-12-18 06:48:06,769 WARN L227 SmtUtils]: Spent 10.07s 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) [2021-12-18 06:48:16,831 WARN L227 SmtUtils]: Spent 10.06s 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) [2021-12-18 06:48:26,457 WARN L227 SmtUtils]: Spent 9.62s 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) [2021-12-18 06:48:36,523 WARN L227 SmtUtils]: Spent 10.07s 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) [2021-12-18 06:48:43,944 WARN L227 SmtUtils]: Spent 5.55s on a formula simplification. DAG size of input: 70 DAG size of output: 67 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-12-18 06:48:49,573 WARN L227 SmtUtils]: Spent 5.63s on a formula simplification. DAG size of input: 66 DAG size of output: 63 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-12-18 06:48:54,945 WARN L227 SmtUtils]: Spent 5.37s on a formula simplification. DAG size of input: 70 DAG size of output: 67 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-12-18 06:49:00,811 WARN L227 SmtUtils]: Spent 5.87s on a formula simplification. DAG size of input: 66 DAG size of output: 63 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-12-18 06:49:17,139 WARN L227 SmtUtils]: Spent 10.09s 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) [2021-12-18 06:49:26,753 WARN L227 SmtUtils]: Spent 9.61s 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) [2021-12-18 06:49:36,366 WARN L227 SmtUtils]: Spent 9.61s 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) [2021-12-18 06:49:46,008 WARN L227 SmtUtils]: Spent 9.64s 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) [2021-12-18 06:49:55,615 WARN L227 SmtUtils]: Spent 9.61s 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) [2021-12-18 06:50:05,447 WARN L227 SmtUtils]: Spent 9.83s 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) [2021-12-18 06:50:15,038 WARN L227 SmtUtils]: Spent 9.59s 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) [2021-12-18 06:50:25,076 WARN L227 SmtUtils]: Spent 10.04s 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) [2021-12-18 06:50:34,678 WARN L227 SmtUtils]: Spent 9.60s 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) [2021-12-18 06:50:44,733 WARN L227 SmtUtils]: Spent 10.05s 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) [2021-12-18 06:50:54,339 WARN L227 SmtUtils]: Spent 9.60s 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) [2021-12-18 06:51:04,428 WARN L227 SmtUtils]: Spent 10.09s 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) [2021-12-18 06:51:14,505 WARN L227 SmtUtils]: Spent 10.08s 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) [2021-12-18 06:51:24,583 WARN L227 SmtUtils]: Spent 10.08s 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) [2021-12-18 06:51:34,681 WARN L227 SmtUtils]: Spent 10.10s 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) [2021-12-18 06:51:44,804 WARN L227 SmtUtils]: Spent 10.12s 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) [2021-12-18 06:51:54,421 WARN L227 SmtUtils]: Spent 9.62s 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) [2021-12-18 06:52:04,508 WARN L227 SmtUtils]: Spent 10.09s 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) [2021-12-18 06:52:22,442 WARN L227 SmtUtils]: Spent 10.06s 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) [2021-12-18 06:52:32,025 WARN L227 SmtUtils]: Spent 9.58s 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) [2021-12-18 06:52:41,605 WARN L227 SmtUtils]: Spent 9.58s 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) [2021-12-18 06:52:51,184 WARN L227 SmtUtils]: Spent 9.58s 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) [2021-12-18 06:53:00,764 WARN L227 SmtUtils]: Spent 9.58s 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) [2021-12-18 06:53:10,380 WARN L227 SmtUtils]: Spent 9.62s 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) [2021-12-18 06:53:19,957 WARN L227 SmtUtils]: Spent 9.58s 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) [2021-12-18 06:53:30,001 WARN L227 SmtUtils]: Spent 10.04s 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) [2021-12-18 06:53:39,560 WARN L227 SmtUtils]: Spent 9.56s 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) [2021-12-18 06:53:49,615 WARN L227 SmtUtils]: Spent 10.05s 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) [2021-12-18 06:53:59,181 WARN L227 SmtUtils]: Spent 9.56s 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) [2021-12-18 06:54:09,229 WARN L227 SmtUtils]: Spent 10.05s 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) [2021-12-18 06:54:19,266 WARN L227 SmtUtils]: Spent 10.04s 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) [2021-12-18 06:54:29,333 WARN L227 SmtUtils]: Spent 10.07s 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) [2021-12-18 06:54:39,414 WARN L227 SmtUtils]: Spent 10.08s 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) [2021-12-18 06:54:49,508 WARN L227 SmtUtils]: Spent 10.09s 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) [2021-12-18 06:54:59,070 WARN L227 SmtUtils]: Spent 9.56s 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) [2021-12-18 06:55:09,151 WARN L227 SmtUtils]: Spent 10.08s 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) [2021-12-18 06:55:19,977 WARN L227 SmtUtils]: Spent 10.05s 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) [2021-12-18 06:55:29,552 WARN L227 SmtUtils]: Spent 9.57s on a formula simplification. DAG size of input: 71 DAG size of output: 68 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-12-18 06:55:39,136 WARN L227 SmtUtils]: Spent 9.58s 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) [2021-12-18 06:55:48,705 WARN L227 SmtUtils]: Spent 9.57s on a formula simplification. DAG size of input: 71 DAG size of output: 68 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-12-18 06:55:58,287 WARN L227 SmtUtils]: Spent 9.58s 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) [2021-12-18 06:56:07,877 WARN L227 SmtUtils]: Spent 9.59s 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) [2021-12-18 06:56:17,461 WARN L227 SmtUtils]: Spent 9.58s 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) [2021-12-18 06:56:27,514 WARN L227 SmtUtils]: Spent 10.05s 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) [2021-12-18 06:56:37,074 WARN L227 SmtUtils]: Spent 9.56s 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) [2021-12-18 06:56:47,106 WARN L227 SmtUtils]: Spent 10.03s 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) [2021-12-18 06:56:56,668 WARN L227 SmtUtils]: Spent 9.56s 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) [2021-12-18 06:57:06,707 WARN L227 SmtUtils]: Spent 10.04s 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) [2021-12-18 06:57:16,774 WARN L227 SmtUtils]: Spent 10.07s 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) [2021-12-18 06:57:26,876 WARN L227 SmtUtils]: Spent 10.10s 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) [2021-12-18 06:57:36,956 WARN L227 SmtUtils]: Spent 10.06s 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) [2021-12-18 06:57:47,013 WARN L227 SmtUtils]: Spent 10.06s 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) Killed by 15