./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-5fdb450-1-144_1a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-5fdb450-1-144_1a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.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 79172d5077d4821f59ec3ee2d8a7cf5ca2cb3c5c1b82d4680e26c94b2b62bba2 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 11:41:08,646 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 11:41:08,648 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 11:41:08,689 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 11:41:08,689 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 11:41:08,690 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 11:41:08,691 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 11:41:08,692 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 11:41:08,693 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 11:41:08,694 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 11:41:08,695 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 11:41:08,696 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 11:41:08,697 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 11:41:08,699 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 11:41:08,701 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 11:41:08,703 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 11:41:08,704 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 11:41:08,707 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 11:41:08,708 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 11:41:08,712 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 11:41:08,712 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 11:41:08,714 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 11:41:08,715 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 11:41:08,715 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 11:41:08,716 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 11:41:08,717 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 11:41:08,720 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 11:41:08,720 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 11:41:08,721 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 11:41:08,721 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 11:41:08,721 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 11:41:08,722 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 11:41:08,722 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 11:41:08,723 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 11:41:08,724 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 11:41:08,725 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 11:41:08,725 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 11:41:08,726 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 11:41:08,726 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 11:41:08,726 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 11:41:08,726 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 11:41:08,735 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 11:41:08,737 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 11:41:08,753 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 11:41:08,755 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 11:41:08,755 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 11:41:08,756 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 11:41:08,756 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 11:41:08,756 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 11:41:08,757 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 11:41:08,757 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 11:41:08,757 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 11:41:08,758 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 11:41:08,758 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 11:41:08,758 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 11:41:08,758 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 11:41:08,758 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 11:41:08,758 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 11:41:08,759 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 11:41:08,759 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 11:41:08,759 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 11:41:08,759 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 11:41:08,759 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 11:41:08,759 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 11:41:08,759 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 11:41:08,760 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 11:41:08,760 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 11:41:08,760 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 11:41:08,760 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 11:41:08,760 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 11:41:08,760 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 11:41:08,761 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 11:41:08,761 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 11:41:08,761 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 79172d5077d4821f59ec3ee2d8a7cf5ca2cb3c5c1b82d4680e26c94b2b62bba2 [2022-07-21 11:41:09,010 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 11:41:09,025 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 11:41:09,027 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 11:41:09,029 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 11:41:09,029 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 11:41:09,030 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-5fdb450-1-144_1a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-07-21 11:41:09,073 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4094016c1/a9b8e689ed114ca5b75341371cd53938/FLAG7751fb854 [2022-07-21 11:41:09,622 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 11:41:09,622 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-5fdb450-1-144_1a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-07-21 11:41:09,656 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4094016c1/a9b8e689ed114ca5b75341371cd53938/FLAG7751fb854 [2022-07-21 11:41:09,798 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4094016c1/a9b8e689ed114ca5b75341371cd53938 [2022-07-21 11:41:09,801 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 11:41:09,802 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 11:41:09,803 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 11:41:09,803 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 11:41:09,805 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 11:41:09,806 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:41:09" (1/1) ... [2022-07-21 11:41:09,807 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@407f63a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:41:09, skipping insertion in model container [2022-07-21 11:41:09,807 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:41:09" (1/1) ... [2022-07-21 11:41:09,812 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 11:41:09,893 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 11:41:10,946 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-validator-v0.8/linux-stable-5fdb450-1-144_1a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.cil.out.i[239738,239751] [2022-07-21 11:41:10,974 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 11:41:10,994 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 11:41:11,254 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-validator-v0.8/linux-stable-5fdb450-1-144_1a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.cil.out.i[239738,239751] [2022-07-21 11:41:11,264 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 11:41:11,328 INFO L208 MainTranslator]: Completed translation [2022-07-21 11:41:11,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:41:11 WrapperNode [2022-07-21 11:41:11,330 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 11:41:11,331 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 11:41:11,331 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 11:41:11,331 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 11:41:11,336 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:41:11" (1/1) ... [2022-07-21 11:41:11,413 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:41:11" (1/1) ... [2022-07-21 11:41:11,586 INFO L137 Inliner]: procedures = 260, calls = 1808, calls flagged for inlining = 104, calls inlined = 100, statements flattened = 4669 [2022-07-21 11:41:11,587 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 11:41:11,588 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 11:41:11,588 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 11:41:11,588 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 11:41:11,594 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:41:11" (1/1) ... [2022-07-21 11:41:11,594 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:41:11" (1/1) ... [2022-07-21 11:41:11,666 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:41:11" (1/1) ... [2022-07-21 11:41:11,666 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:41:11" (1/1) ... [2022-07-21 11:41:11,779 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:41:11" (1/1) ... [2022-07-21 11:41:11,799 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:41:11" (1/1) ... [2022-07-21 11:41:11,834 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:41:11" (1/1) ... [2022-07-21 11:41:11,871 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 11:41:11,873 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 11:41:11,873 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 11:41:11,873 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 11:41:11,874 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:41:11" (1/1) ... [2022-07-21 11:41:11,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 11:41:11,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 11:41:11,946 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-21 11:41:11,974 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-21 11:41:11,975 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-21 11:41:11,975 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-21 11:41:11,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-21 11:41:11,976 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-21 11:41:11,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-21 11:41:11,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-21 11:41:11,976 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-21 11:41:11,976 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_delete [2022-07-21 11:41:11,976 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_delete [2022-07-21 11:41:11,976 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_11 [2022-07-21 11:41:11,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_11 [2022-07-21 11:41:11,976 INFO L130 BoogieDeclarations]: Found specification of procedure usb_sg_wait [2022-07-21 11:41:11,977 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_sg_wait [2022-07-21 11:41:11,977 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_usb_bulk_msg [2022-07-21 11:41:11,977 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_usb_bulk_msg [2022-07-21 11:41:11,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2022-07-21 11:41:11,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2022-07-21 11:41:11,977 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_timeout [2022-07-21 11:41:11,977 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_timeout [2022-07-21 11:41:11,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 11:41:11,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 11:41:11,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2022-07-21 11:41:11,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2022-07-21 11:41:11,978 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2022-07-21 11:41:11,978 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2022-07-21 11:41:11,978 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_signal_sdio_irq [2022-07-21 11:41:11,978 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_signal_sdio_irq [2022-07-21 11:41:11,978 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-21 11:41:11,978 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-21 11:41:11,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-21 11:41:11,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-21 11:41:11,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-21 11:41:11,979 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-21 11:41:11,966 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-21 11:41:11,979 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_49 [2022-07-21 11:41:11,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_49 [2022-07-21 11:41:11,980 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-21 11:41:11,980 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-21 11:41:11,980 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_detect_change [2022-07-21 11:41:11,980 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_detect_change [2022-07-21 11:41:11,980 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-07-21 11:41:11,981 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-07-21 11:41:11,981 INFO L130 BoogieDeclarations]: Found specification of procedure usb_sg_cancel [2022-07-21 11:41:11,981 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_sg_cancel [2022-07-21 11:41:11,981 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-07-21 11:41:11,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-07-21 11:41:11,981 INFO L130 BoogieDeclarations]: Found specification of procedure usb_sg_init [2022-07-21 11:41:11,981 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_sg_init [2022-07-21 11:41:11,981 INFO L130 BoogieDeclarations]: Found specification of procedure __command_read_data [2022-07-21 11:41:11,982 INFO L138 BoogieDeclarations]: Found implementation of procedure __command_read_data [2022-07-21 11:41:11,982 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_26 [2022-07-21 11:41:11,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_26 [2022-07-21 11:41:11,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 11:41:11,982 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_28 [2022-07-21 11:41:11,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_28 [2022-07-21 11:41:11,982 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-21 11:41:11,983 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-21 11:41:11,983 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unlink_urb [2022-07-21 11:41:11,983 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unlink_urb [2022-07-21 11:41:11,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 11:41:11,984 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_12 [2022-07-21 11:41:11,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_12 [2022-07-21 11:41:11,984 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-07-21 11:41:11,984 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-07-21 11:41:11,984 INFO L130 BoogieDeclarations]: Found specification of procedure irqpoll_out_completed [2022-07-21 11:41:11,984 INFO L138 BoogieDeclarations]: Found implementation of procedure irqpoll_out_completed [2022-07-21 11:41:11,985 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_disconnect [2022-07-21 11:41:11,985 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_disconnect [2022-07-21 11:41:11,985 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_14 [2022-07-21 11:41:11,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_14 [2022-07-21 11:41:11,985 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_3 [2022-07-21 11:41:11,985 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_3 [2022-07-21 11:41:11,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 11:41:11,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 11:41:11,986 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-07-21 11:41:11,986 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-07-21 11:41:11,986 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-21 11:41:11,986 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-21 11:41:11,986 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_enable_sdio_irq [2022-07-21 11:41:11,986 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_enable_sdio_irq [2022-07-21 11:41:11,987 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-21 11:41:11,987 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-21 11:41:11,987 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-07-21 11:41:11,987 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-07-21 11:41:11,987 INFO L130 BoogieDeclarations]: Found specification of procedure add_offloaded_reg [2022-07-21 11:41:11,987 INFO L138 BoogieDeclarations]: Found implementation of procedure add_offloaded_reg [2022-07-21 11:41:11,987 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2022-07-21 11:41:11,987 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2022-07-21 11:41:11,987 INFO L130 BoogieDeclarations]: Found specification of procedure command_out_completed [2022-07-21 11:41:11,987 INFO L138 BoogieDeclarations]: Found implementation of procedure command_out_completed [2022-07-21 11:41:11,988 INFO L130 BoogieDeclarations]: Found specification of procedure roundup_to_multiple_of_64 [2022-07-21 11:41:11,988 INFO L138 BoogieDeclarations]: Found implementation of procedure roundup_to_multiple_of_64 [2022-07-21 11:41:11,988 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2022-07-21 11:41:11,988 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2022-07-21 11:41:11,988 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-07-21 11:41:11,989 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-07-21 11:41:11,989 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-21 11:41:11,989 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_cmndwork_thread [2022-07-21 11:41:11,989 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_cmndwork_thread [2022-07-21 11:41:11,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-21 11:41:11,990 INFO L130 BoogieDeclarations]: Found specification of procedure send_command [2022-07-21 11:41:11,990 INFO L138 BoogieDeclarations]: Found implementation of procedure send_command [2022-07-21 11:41:11,990 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2022-07-21 11:41:11,990 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2022-07-21 11:41:11,990 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-21 11:41:11,991 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_6 [2022-07-21 11:41:11,991 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_6 [2022-07-21 11:41:11,991 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2022-07-21 11:41:11,991 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2022-07-21 11:41:11,991 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-21 11:41:11,991 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-21 11:41:11,991 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-07-21 11:41:11,991 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-07-21 11:41:11,992 INFO L130 BoogieDeclarations]: Found specification of procedure send_irqpoll [2022-07-21 11:41:11,992 INFO L138 BoogieDeclarations]: Found implementation of procedure send_irqpoll [2022-07-21 11:41:11,992 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-07-21 11:41:11,992 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-07-21 11:41:11,992 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-21 11:41:11,993 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-21 11:41:11,994 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2022-07-21 11:41:11,995 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2022-07-21 11:41:11,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-21 11:41:11,995 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_response_error [2022-07-21 11:41:11,995 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_response_error [2022-07-21 11:41:11,996 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_bulk_out [2022-07-21 11:41:11,996 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_bulk_out [2022-07-21 11:41:11,997 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_free_host [2022-07-21 11:41:11,997 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_free_host [2022-07-21 11:41:12,001 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-21 11:41:12,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-21 11:41:12,001 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_31 [2022-07-21 11:41:12,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_31 [2022-07-21 11:41:12,001 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-21 11:41:12,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-21 11:41:12,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 11:41:12,001 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_6 [2022-07-21 11:41:12,001 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_6 [2022-07-21 11:41:12,002 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_queue_poll_work [2022-07-21 11:41:12,002 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_queue_poll_work [2022-07-21 11:41:12,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-21 11:41:12,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-21 11:41:12,002 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2022-07-21 11:41:12,002 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2022-07-21 11:41:12,002 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_bulk_in [2022-07-21 11:41:12,002 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_bulk_in [2022-07-21 11:41:12,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 11:41:12,002 INFO L130 BoogieDeclarations]: Found specification of procedure sg_copy_to_buffer [2022-07-21 11:41:12,003 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_copy_to_buffer [2022-07-21 11:41:12,003 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_6 [2022-07-21 11:41:12,003 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_6 [2022-07-21 11:41:12,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put_8 [2022-07-21 11:41:12,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put_8 [2022-07-21 11:41:12,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-21 11:41:12,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-21 11:41:12,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 11:41:12,003 INFO L130 BoogieDeclarations]: Found specification of procedure __download_offload_pseudocode [2022-07-21 11:41:12,003 INFO L138 BoogieDeclarations]: Found implementation of procedure __download_offload_pseudocode [2022-07-21 11:41:12,003 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 11:41:12,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 11:41:12,004 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_pollwork_thread [2022-07-21 11:41:12,004 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_pollwork_thread [2022-07-21 11:41:12,004 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_InterfaceNumber [2022-07-21 11:41:12,004 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_InterfaceNumber [2022-07-21 11:41:12,004 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-07-21 11:41:12,004 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-07-21 11:41:12,004 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-07-21 11:41:12,004 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-07-21 11:41:12,004 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-07-21 11:41:12,005 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-07-21 11:41:12,005 INFO L130 BoogieDeclarations]: Found specification of procedure __do_poll [2022-07-21 11:41:12,005 INFO L138 BoogieDeclarations]: Found implementation of procedure __do_poll [2022-07-21 11:41:12,005 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_3 [2022-07-21 11:41:12,005 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_3 [2022-07-21 11:41:12,005 INFO L130 BoogieDeclarations]: Found specification of procedure new_system_port_status [2022-07-21 11:41:12,005 INFO L138 BoogieDeclarations]: Found implementation of procedure new_system_port_status [2022-07-21 11:41:12,005 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_request_done [2022-07-21 11:41:12,005 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_request_done [2022-07-21 11:41:12,006 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-07-21 11:41:12,006 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-07-21 11:41:12,006 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-07-21 11:41:12,006 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-07-21 11:41:12,006 INFO L130 BoogieDeclarations]: Found specification of procedure __command_write_data [2022-07-21 11:41:12,006 INFO L138 BoogieDeclarations]: Found implementation of procedure __command_write_data [2022-07-21 11:41:12,006 INFO L130 BoogieDeclarations]: Found specification of procedure request_firmware [2022-07-21 11:41:12,006 INFO L138 BoogieDeclarations]: Found implementation of procedure request_firmware [2022-07-21 11:41:12,006 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2022-07-21 11:41:12,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2022-07-21 11:41:12,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_46 [2022-07-21 11:41:12,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_46 [2022-07-21 11:41:12,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2022-07-21 11:41:12,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2022-07-21 11:41:12,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 11:41:12,007 INFO L130 BoogieDeclarations]: Found specification of procedure usb_string [2022-07-21 11:41:12,007 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_string [2022-07-21 11:41:12,007 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_priv [2022-07-21 11:41:12,007 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_priv [2022-07-21 11:41:12,007 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2022-07-21 11:41:12,008 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2022-07-21 11:41:12,008 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_deadwork_thread [2022-07-21 11:41:12,008 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_deadwork_thread [2022-07-21 11:41:12,008 INFO L130 BoogieDeclarations]: Found specification of procedure check_vub300_port_status [2022-07-21 11:41:12,008 INFO L138 BoogieDeclarations]: Found implementation of procedure check_vub300_port_status [2022-07-21 11:41:12,008 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-07-21 11:41:12,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 11:41:12,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 11:41:12,572 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 11:41:12,574 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 11:41:13,512 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-21 11:41:15,951 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 11:41:15,962 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 11:41:15,962 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 11:41:15,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:41:15 BoogieIcfgContainer [2022-07-21 11:41:15,965 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 11:41:15,967 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 11:41:15,967 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 11:41:15,969 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 11:41:15,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 11:41:09" (1/3) ... [2022-07-21 11:41:15,969 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29279e50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:41:15, skipping insertion in model container [2022-07-21 11:41:15,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:41:11" (2/3) ... [2022-07-21 11:41:15,970 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29279e50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:41:15, skipping insertion in model container [2022-07-21 11:41:15,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:41:15" (3/3) ... [2022-07-21 11:41:15,971 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-5fdb450-1-144_1a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-07-21 11:41:15,980 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 11:41:15,981 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 11:41:16,029 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 11:41:16,034 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6ebc66fc, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@17b51d22 [2022-07-21 11:41:16,034 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 11:41:16,040 INFO L276 IsEmpty]: Start isEmpty. Operand has 1667 states, 1188 states have (on average 1.4267676767676767) internal successors, (1695), 1254 states have internal predecessors, (1695), 384 states have call successors, (384), 94 states have call predecessors, (384), 93 states have return successors, (375), 349 states have call predecessors, (375), 375 states have call successors, (375) [2022-07-21 11:41:16,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-21 11:41:16,055 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:41:16,056 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:41:16,056 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:41:16,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:41:16,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1823078644, now seen corresponding path program 1 times [2022-07-21 11:41:16,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 11:41:16,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739990106] [2022-07-21 11:41:16,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:41:16,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 11:41:16,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:16,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:41:16,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:16,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:41:16,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:16,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:41:16,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:16,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 11:41:16,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:16,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:41:16,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:16,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:41:16,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:16,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 11:41:16,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:16,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:41:16,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:16,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:41:16,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:16,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 11:41:16,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:16,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:41:16,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:16,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:41:16,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:16,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 11:41:16,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:16,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:41:16,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:16,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 11:41:16,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:16,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:41:16,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:16,582 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-07-21 11:41:16,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 11:41:16,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739990106] [2022-07-21 11:41:16,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739990106] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:41:16,584 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:41:16,585 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 11:41:16,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685655164] [2022-07-21 11:41:16,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:41:16,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 11:41:16,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 11:41:16,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 11:41:16,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 11:41:16,617 INFO L87 Difference]: Start difference. First operand has 1667 states, 1188 states have (on average 1.4267676767676767) internal successors, (1695), 1254 states have internal predecessors, (1695), 384 states have call successors, (384), 94 states have call predecessors, (384), 93 states have return successors, (375), 349 states have call predecessors, (375), 375 states have call successors, (375) Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-21 11:41:22,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:41:22,459 INFO L93 Difference]: Finished difference Result 3492 states and 5287 transitions. [2022-07-21 11:41:22,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 11:41:22,461 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 114 [2022-07-21 11:41:22,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:41:22,481 INFO L225 Difference]: With dead ends: 3492 [2022-07-21 11:41:22,481 INFO L226 Difference]: Without dead ends: 1813 [2022-07-21 11:41:22,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-07-21 11:41:22,507 INFO L413 NwaCegarLoop]: 2238 mSDtfsCounter, 1190 mSDsluCounter, 1696 mSDsCounter, 0 mSdLazyCounter, 1633 mSolverCounterSat, 974 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1221 SdHoareTripleChecker+Valid, 3934 SdHoareTripleChecker+Invalid, 2607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 974 IncrementalHoareTripleChecker+Valid, 1633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-07-21 11:41:22,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1221 Valid, 3934 Invalid, 2607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [974 Valid, 1633 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-07-21 11:41:22,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1813 states. [2022-07-21 11:41:22,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1813 to 1651. [2022-07-21 11:41:22,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1651 states, 1183 states have (on average 1.3846153846153846) internal successors, (1638), 1238 states have internal predecessors, (1638), 375 states have call successors, (375), 93 states have call predecessors, (375), 92 states have return successors, (371), 345 states have call predecessors, (371), 371 states have call successors, (371) [2022-07-21 11:41:22,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1651 states to 1651 states and 2384 transitions. [2022-07-21 11:41:22,654 INFO L78 Accepts]: Start accepts. Automaton has 1651 states and 2384 transitions. Word has length 114 [2022-07-21 11:41:22,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:41:22,655 INFO L495 AbstractCegarLoop]: Abstraction has 1651 states and 2384 transitions. [2022-07-21 11:41:22,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-21 11:41:22,655 INFO L276 IsEmpty]: Start isEmpty. Operand 1651 states and 2384 transitions. [2022-07-21 11:41:22,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-21 11:41:22,658 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:41:22,658 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:41:22,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 11:41:22,658 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:41:22,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:41:22,659 INFO L85 PathProgramCache]: Analyzing trace with hash 271653140, now seen corresponding path program 1 times [2022-07-21 11:41:22,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 11:41:22,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544201242] [2022-07-21 11:41:22,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:41:22,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 11:41:22,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:22,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:41:22,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:22,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:41:22,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:22,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:41:22,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:22,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 11:41:22,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:22,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:41:22,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:22,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:41:22,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:22,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 11:41:22,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:22,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:41:22,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:22,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:41:22,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:22,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 11:41:22,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:22,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:41:22,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:22,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:41:22,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:22,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 11:41:22,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:22,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:41:22,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:22,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 11:41:22,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:22,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:41:22,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:22,927 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-07-21 11:41:22,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 11:41:22,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544201242] [2022-07-21 11:41:22,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544201242] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:41:22,928 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:41:22,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 11:41:22,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759962278] [2022-07-21 11:41:22,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:41:22,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 11:41:22,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 11:41:22,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 11:41:22,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 11:41:22,930 INFO L87 Difference]: Start difference. First operand 1651 states and 2384 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-21 11:41:29,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:41:29,297 INFO L93 Difference]: Finished difference Result 5221 states and 7806 transitions. [2022-07-21 11:41:29,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 11:41:29,298 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 114 [2022-07-21 11:41:29,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:41:29,315 INFO L225 Difference]: With dead ends: 5221 [2022-07-21 11:41:29,316 INFO L226 Difference]: Without dead ends: 3593 [2022-07-21 11:41:29,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-21 11:41:29,326 INFO L413 NwaCegarLoop]: 2760 mSDtfsCounter, 5570 mSDsluCounter, 2671 mSDsCounter, 0 mSdLazyCounter, 2361 mSolverCounterSat, 3150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5783 SdHoareTripleChecker+Valid, 5431 SdHoareTripleChecker+Invalid, 5511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3150 IncrementalHoareTripleChecker+Valid, 2361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-07-21 11:41:29,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5783 Valid, 5431 Invalid, 5511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3150 Valid, 2361 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2022-07-21 11:41:29,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3593 states. [2022-07-21 11:41:29,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3593 to 3300. [2022-07-21 11:41:29,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3300 states, 2365 states have (on average 1.3830866807610993) internal successors, (3271), 2475 states have internal predecessors, (3271), 742 states have call successors, (742), 184 states have call predecessors, (742), 192 states have return successors, (790), 694 states have call predecessors, (790), 738 states have call successors, (790) [2022-07-21 11:41:29,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3300 states to 3300 states and 4803 transitions. [2022-07-21 11:41:29,421 INFO L78 Accepts]: Start accepts. Automaton has 3300 states and 4803 transitions. Word has length 114 [2022-07-21 11:41:29,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:41:29,422 INFO L495 AbstractCegarLoop]: Abstraction has 3300 states and 4803 transitions. [2022-07-21 11:41:29,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-21 11:41:29,422 INFO L276 IsEmpty]: Start isEmpty. Operand 3300 states and 4803 transitions. [2022-07-21 11:41:29,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-07-21 11:41:29,424 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:41:29,424 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:41:29,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 11:41:29,425 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:41:29,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:41:29,425 INFO L85 PathProgramCache]: Analyzing trace with hash -169226874, now seen corresponding path program 1 times [2022-07-21 11:41:29,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 11:41:29,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943080770] [2022-07-21 11:41:29,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:41:29,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 11:41:29,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:29,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:41:29,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:29,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:41:29,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:29,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:41:29,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:29,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 11:41:29,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:29,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:41:29,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:29,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:41:29,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:29,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 11:41:29,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:29,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:41:29,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:29,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:41:29,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:29,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 11:41:29,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:29,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:41:29,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:29,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:41:29,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:29,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 11:41:29,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:29,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:41:29,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:29,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 11:41:29,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:29,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:41:29,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:29,653 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-07-21 11:41:29,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 11:41:29,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943080770] [2022-07-21 11:41:29,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943080770] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:41:29,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:41:29,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 11:41:29,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148597275] [2022-07-21 11:41:29,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:41:29,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 11:41:29,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 11:41:29,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 11:41:29,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 11:41:29,656 INFO L87 Difference]: Start difference. First operand 3300 states and 4803 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-21 11:41:39,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:41:39,778 INFO L93 Difference]: Finished difference Result 10068 states and 15121 transitions. [2022-07-21 11:41:39,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 11:41:39,781 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 115 [2022-07-21 11:41:39,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:41:39,818 INFO L225 Difference]: With dead ends: 10068 [2022-07-21 11:41:39,818 INFO L226 Difference]: Without dead ends: 6791 [2022-07-21 11:41:39,833 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-21 11:41:39,834 INFO L413 NwaCegarLoop]: 2475 mSDtfsCounter, 4106 mSDsluCounter, 4113 mSDsCounter, 0 mSdLazyCounter, 4078 mSolverCounterSat, 2176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4283 SdHoareTripleChecker+Valid, 6588 SdHoareTripleChecker+Invalid, 6254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2176 IncrementalHoareTripleChecker+Valid, 4078 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2022-07-21 11:41:39,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4283 Valid, 6588 Invalid, 6254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2176 Valid, 4078 Invalid, 0 Unknown, 0 Unchecked, 9.8s Time] [2022-07-21 11:41:39,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6791 states. [2022-07-21 11:41:40,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6791 to 6205. [2022-07-21 11:41:40,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6205 states, 4454 states have (on average 1.388414907947912) internal successors, (6184), 4669 states have internal predecessors, (6184), 1383 states have call successors, (1383), 350 states have call predecessors, (1383), 367 states have return successors, (1481), 1291 states have call predecessors, (1481), 1379 states have call successors, (1481) [2022-07-21 11:41:40,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6205 states to 6205 states and 9048 transitions. [2022-07-21 11:41:40,123 INFO L78 Accepts]: Start accepts. Automaton has 6205 states and 9048 transitions. Word has length 115 [2022-07-21 11:41:40,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:41:40,124 INFO L495 AbstractCegarLoop]: Abstraction has 6205 states and 9048 transitions. [2022-07-21 11:41:40,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-21 11:41:40,124 INFO L276 IsEmpty]: Start isEmpty. Operand 6205 states and 9048 transitions. [2022-07-21 11:41:40,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-07-21 11:41:40,127 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:41:40,127 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:41:40,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 11:41:40,128 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:41:40,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:41:40,128 INFO L85 PathProgramCache]: Analyzing trace with hash -951600553, now seen corresponding path program 1 times [2022-07-21 11:41:40,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 11:41:40,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878640438] [2022-07-21 11:41:40,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:41:40,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 11:41:40,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:40,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:41:40,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:40,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:41:40,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:40,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:41:40,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:40,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 11:41:40,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:40,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:41:40,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:40,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:41:40,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:40,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 11:41:40,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:40,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:41:40,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:40,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:41:40,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:40,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 11:41:40,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:40,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:41:40,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:40,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:41:40,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:40,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 11:41:40,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:40,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:41:40,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:40,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 11:41:40,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:40,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:41:40,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:40,340 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-07-21 11:41:40,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 11:41:40,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878640438] [2022-07-21 11:41:40,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878640438] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:41:40,341 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:41:40,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 11:41:40,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284196594] [2022-07-21 11:41:40,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:41:40,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 11:41:40,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 11:41:40,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 11:41:40,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 11:41:40,344 INFO L87 Difference]: Start difference. First operand 6205 states and 9048 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-21 11:41:48,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:41:48,150 INFO L93 Difference]: Finished difference Result 6786 states and 10096 transitions. [2022-07-21 11:41:48,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 11:41:48,150 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 116 [2022-07-21 11:41:48,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:41:48,229 INFO L225 Difference]: With dead ends: 6786 [2022-07-21 11:41:48,229 INFO L226 Difference]: Without dead ends: 6783 [2022-07-21 11:41:48,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-07-21 11:41:48,233 INFO L413 NwaCegarLoop]: 2157 mSDtfsCounter, 3222 mSDsluCounter, 2383 mSDsCounter, 0 mSdLazyCounter, 2360 mSolverCounterSat, 1309 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3437 SdHoareTripleChecker+Valid, 4540 SdHoareTripleChecker+Invalid, 3669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1309 IncrementalHoareTripleChecker+Valid, 2360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-07-21 11:41:48,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3437 Valid, 4540 Invalid, 3669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1309 Valid, 2360 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2022-07-21 11:41:48,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6783 states. [2022-07-21 11:41:48,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6783 to 6204. [2022-07-21 11:41:48,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6204 states, 4454 states have (on average 1.3881903906600808) internal successors, (6183), 4668 states have internal predecessors, (6183), 1382 states have call successors, (1382), 350 states have call predecessors, (1382), 367 states have return successors, (1481), 1291 states have call predecessors, (1481), 1379 states have call successors, (1481) [2022-07-21 11:41:48,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6204 states to 6204 states and 9046 transitions. [2022-07-21 11:41:48,437 INFO L78 Accepts]: Start accepts. Automaton has 6204 states and 9046 transitions. Word has length 116 [2022-07-21 11:41:48,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:41:48,439 INFO L495 AbstractCegarLoop]: Abstraction has 6204 states and 9046 transitions. [2022-07-21 11:41:48,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-21 11:41:48,439 INFO L276 IsEmpty]: Start isEmpty. Operand 6204 states and 9046 transitions. [2022-07-21 11:41:48,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-07-21 11:41:48,442 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:41:48,442 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:41:48,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 11:41:48,443 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:41:48,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:41:48,443 INFO L85 PathProgramCache]: Analyzing trace with hash 564624041, now seen corresponding path program 1 times [2022-07-21 11:41:48,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 11:41:48,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662914786] [2022-07-21 11:41:48,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:41:48,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 11:41:48,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:48,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:41:48,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:48,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:41:48,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:48,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:41:48,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:48,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 11:41:48,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:48,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:41:48,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:48,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:41:48,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:48,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 11:41:48,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:48,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:41:48,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:48,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:41:48,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:48,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 11:41:48,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:48,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:41:48,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:48,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:41:48,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:48,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 11:41:48,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:48,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:41:48,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:48,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 11:41:48,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:48,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:41:48,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:48,621 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-07-21 11:41:48,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 11:41:48,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662914786] [2022-07-21 11:41:48,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662914786] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:41:48,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:41:48,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 11:41:48,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559952972] [2022-07-21 11:41:48,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:41:48,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 11:41:48,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 11:41:48,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 11:41:48,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 11:41:48,623 INFO L87 Difference]: Start difference. First operand 6204 states and 9046 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-21 11:41:52,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:41:52,599 INFO L93 Difference]: Finished difference Result 6785 states and 10094 transitions. [2022-07-21 11:41:52,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 11:41:52,600 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 117 [2022-07-21 11:41:52,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:41:52,629 INFO L225 Difference]: With dead ends: 6785 [2022-07-21 11:41:52,630 INFO L226 Difference]: Without dead ends: 6753 [2022-07-21 11:41:52,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-07-21 11:41:52,637 INFO L413 NwaCegarLoop]: 2169 mSDtfsCounter, 3858 mSDsluCounter, 898 mSDsCounter, 0 mSdLazyCounter, 1003 mSolverCounterSat, 1813 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4072 SdHoareTripleChecker+Valid, 3067 SdHoareTripleChecker+Invalid, 2816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1813 IncrementalHoareTripleChecker+Valid, 1003 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-07-21 11:41:52,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4072 Valid, 3067 Invalid, 2816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1813 Valid, 1003 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-07-21 11:41:52,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6753 states. [2022-07-21 11:41:52,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6753 to 6174. [2022-07-21 11:41:52,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6174 states, 4438 states have (on average 1.3886885984677784) internal successors, (6163), 4651 states have internal predecessors, (6163), 1369 states have call successors, (1369), 349 states have call predecessors, (1369), 366 states have return successors, (1469), 1279 states have call predecessors, (1469), 1367 states have call successors, (1469) [2022-07-21 11:41:52,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6174 states to 6174 states and 9001 transitions. [2022-07-21 11:41:52,859 INFO L78 Accepts]: Start accepts. Automaton has 6174 states and 9001 transitions. Word has length 117 [2022-07-21 11:41:52,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:41:52,860 INFO L495 AbstractCegarLoop]: Abstraction has 6174 states and 9001 transitions. [2022-07-21 11:41:52,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-21 11:41:52,861 INFO L276 IsEmpty]: Start isEmpty. Operand 6174 states and 9001 transitions. [2022-07-21 11:41:52,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-07-21 11:41:52,868 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:41:52,868 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:41:52,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-21 11:41:52,868 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:41:52,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:41:52,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1181365168, now seen corresponding path program 1 times [2022-07-21 11:41:52,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 11:41:52,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227993740] [2022-07-21 11:41:52,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:41:52,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 11:41:52,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:52,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:41:52,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:52,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:41:52,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:52,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:41:52,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:52,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 11:41:52,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:52,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:41:52,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:52,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:41:52,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:52,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 11:41:52,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:52,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:41:52,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:52,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:41:52,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:53,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 11:41:53,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:53,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:41:53,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:53,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:41:53,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:53,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 11:41:53,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:53,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:41:53,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:53,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 11:41:53,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:53,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:41:53,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:53,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-21 11:41:53,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:53,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 11:41:53,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:53,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-21 11:41:53,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:53,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-21 11:41:53,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:53,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-21 11:41:53,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:53,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:41:53,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:53,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-21 11:41:53,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:53,074 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2022-07-21 11:41:53,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 11:41:53,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227993740] [2022-07-21 11:41:53,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227993740] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:41:53,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:41:53,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 11:41:53,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303698449] [2022-07-21 11:41:53,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:41:53,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 11:41:53,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 11:41:53,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 11:41:53,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-07-21 11:41:53,076 INFO L87 Difference]: Start difference. First operand 6174 states and 9001 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (17), 7 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-21 11:42:05,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:42:05,219 INFO L93 Difference]: Finished difference Result 21066 states and 31770 transitions. [2022-07-21 11:42:05,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-21 11:42:05,219 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (17), 7 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 169 [2022-07-21 11:42:05,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:42:05,271 INFO L225 Difference]: With dead ends: 21066 [2022-07-21 11:42:05,271 INFO L226 Difference]: Without dead ends: 14915 [2022-07-21 11:42:05,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2022-07-21 11:42:05,294 INFO L413 NwaCegarLoop]: 2398 mSDtfsCounter, 7743 mSDsluCounter, 4802 mSDsCounter, 0 mSdLazyCounter, 6276 mSolverCounterSat, 5865 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8064 SdHoareTripleChecker+Valid, 7200 SdHoareTripleChecker+Invalid, 12141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5865 IncrementalHoareTripleChecker+Valid, 6276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.5s IncrementalHoareTripleChecker+Time [2022-07-21 11:42:05,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8064 Valid, 7200 Invalid, 12141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5865 Valid, 6276 Invalid, 0 Unknown, 0 Unchecked, 11.5s Time] [2022-07-21 11:42:05,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14915 states. [2022-07-21 11:42:05,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14915 to 13230. [2022-07-21 11:42:05,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13230 states, 9406 states have (on average 1.381990219009143) internal successors, (12999), 9917 states have internal predecessors, (12999), 2943 states have call successors, (2943), 677 states have call predecessors, (2943), 880 states have return successors, (3810), 2917 states have call predecessors, (3810), 2941 states have call successors, (3810) [2022-07-21 11:42:05,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13230 states to 13230 states and 19752 transitions. [2022-07-21 11:42:05,725 INFO L78 Accepts]: Start accepts. Automaton has 13230 states and 19752 transitions. Word has length 169 [2022-07-21 11:42:05,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:42:05,726 INFO L495 AbstractCegarLoop]: Abstraction has 13230 states and 19752 transitions. [2022-07-21 11:42:05,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (17), 7 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-21 11:42:05,726 INFO L276 IsEmpty]: Start isEmpty. Operand 13230 states and 19752 transitions. [2022-07-21 11:42:05,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-07-21 11:42:05,742 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:42:05,743 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:42:05,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-21 11:42:05,743 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:42:05,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:42:05,744 INFO L85 PathProgramCache]: Analyzing trace with hash -84553889, now seen corresponding path program 1 times [2022-07-21 11:42:05,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 11:42:05,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940848743] [2022-07-21 11:42:05,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:42:05,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 11:42:05,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:05,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:42:05,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:05,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:42:05,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:05,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:42:05,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:05,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 11:42:05,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:05,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:42:05,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:05,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:42:05,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:05,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 11:42:05,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:05,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:42:05,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:05,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:42:05,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:05,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 11:42:05,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:05,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:42:05,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:05,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:42:05,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:05,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 11:42:05,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:05,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:42:05,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:05,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 11:42:05,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:05,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:42:05,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:05,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-21 11:42:05,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:05,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:42:05,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:05,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:42:05,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:06,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-21 11:42:06,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:06,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-21 11:42:06,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:06,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-07-21 11:42:06,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:06,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-21 11:42:06,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:06,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-21 11:42:06,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:06,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:42:06,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:06,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-21 11:42:06,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:06,055 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2022-07-21 11:42:06,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 11:42:06,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940848743] [2022-07-21 11:42:06,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940848743] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:42:06,056 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:42:06,056 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-21 11:42:06,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199064939] [2022-07-21 11:42:06,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:42:06,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 11:42:06,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 11:42:06,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 11:42:06,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-07-21 11:42:06,058 INFO L87 Difference]: Start difference. First operand 13230 states and 19752 transitions. Second operand has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (18), 7 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-21 11:42:14,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:42:14,936 INFO L93 Difference]: Finished difference Result 30611 states and 46856 transitions. [2022-07-21 11:42:14,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-21 11:42:14,936 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (18), 7 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 208 [2022-07-21 11:42:14,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:42:14,997 INFO L225 Difference]: With dead ends: 30611 [2022-07-21 11:42:14,998 INFO L226 Difference]: Without dead ends: 17404 [2022-07-21 11:42:15,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2022-07-21 11:42:15,038 INFO L413 NwaCegarLoop]: 2490 mSDtfsCounter, 6681 mSDsluCounter, 4698 mSDsCounter, 0 mSdLazyCounter, 4093 mSolverCounterSat, 5039 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6950 SdHoareTripleChecker+Valid, 7188 SdHoareTripleChecker+Invalid, 9132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5039 IncrementalHoareTripleChecker+Valid, 4093 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-07-21 11:42:15,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6950 Valid, 7188 Invalid, 9132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5039 Valid, 4093 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time] [2022-07-21 11:42:15,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17404 states. [2022-07-21 11:42:15,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17404 to 13244. [2022-07-21 11:42:15,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13244 states, 9420 states have (on average 1.3814225053078557) internal successors, (13013), 9931 states have internal predecessors, (13013), 2943 states have call successors, (2943), 677 states have call predecessors, (2943), 880 states have return successors, (3810), 2917 states have call predecessors, (3810), 2941 states have call successors, (3810) [2022-07-21 11:42:15,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13244 states to 13244 states and 19766 transitions. [2022-07-21 11:42:15,499 INFO L78 Accepts]: Start accepts. Automaton has 13244 states and 19766 transitions. Word has length 208 [2022-07-21 11:42:15,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:42:15,500 INFO L495 AbstractCegarLoop]: Abstraction has 13244 states and 19766 transitions. [2022-07-21 11:42:15,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (18), 7 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-21 11:42:15,500 INFO L276 IsEmpty]: Start isEmpty. Operand 13244 states and 19766 transitions. [2022-07-21 11:42:15,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-07-21 11:42:15,514 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:42:15,514 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:42:15,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-21 11:42:15,515 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:42:15,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:42:15,515 INFO L85 PathProgramCache]: Analyzing trace with hash -956826414, now seen corresponding path program 1 times [2022-07-21 11:42:15,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 11:42:15,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683104611] [2022-07-21 11:42:15,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:42:15,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 11:42:15,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:15,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:42:15,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:15,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:42:15,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:15,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:42:15,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:15,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 11:42:15,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:15,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:42:15,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:15,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:42:15,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:15,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 11:42:15,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:15,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:42:15,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:15,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:42:15,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:15,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 11:42:15,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:15,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:42:15,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:15,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:42:15,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:15,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 11:42:15,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:15,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:42:15,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:15,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 11:42:15,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:15,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:42:15,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:15,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-21 11:42:15,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:15,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:42:15,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:15,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:42:15,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:15,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-21 11:42:15,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:15,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:42:15,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:15,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:42:15,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:15,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-21 11:42:15,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:15,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-07-21 11:42:15,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:15,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-07-21 11:42:15,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:15,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-21 11:42:15,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:15,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-21 11:42:15,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:15,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:42:15,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:15,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-21 11:42:15,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:15,852 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2022-07-21 11:42:15,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 11:42:15,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683104611] [2022-07-21 11:42:15,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683104611] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:42:15,853 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:42:15,853 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 11:42:15,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481150337] [2022-07-21 11:42:15,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:42:15,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 11:42:15,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 11:42:15,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 11:42:15,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-07-21 11:42:15,854 INFO L87 Difference]: Start difference. First operand 13244 states and 19766 transitions. Second operand has 8 states, 8 states have (on average 13.125) internal successors, (105), 3 states have internal predecessors, (105), 3 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-21 11:42:31,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:42:31,669 INFO L93 Difference]: Finished difference Result 42485 states and 64402 transitions. [2022-07-21 11:42:31,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-21 11:42:31,670 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.125) internal successors, (105), 3 states have internal predecessors, (105), 3 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 225 [2022-07-21 11:42:31,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:42:31,808 INFO L225 Difference]: With dead ends: 42485 [2022-07-21 11:42:31,808 INFO L226 Difference]: Without dead ends: 29264 [2022-07-21 11:42:31,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2022-07-21 11:42:31,856 INFO L413 NwaCegarLoop]: 3690 mSDtfsCounter, 5284 mSDsluCounter, 6309 mSDsCounter, 0 mSdLazyCounter, 7322 mSolverCounterSat, 4440 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5644 SdHoareTripleChecker+Valid, 9999 SdHoareTripleChecker+Invalid, 11762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4440 IncrementalHoareTripleChecker+Valid, 7322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.8s IncrementalHoareTripleChecker+Time [2022-07-21 11:42:31,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5644 Valid, 9999 Invalid, 11762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4440 Valid, 7322 Invalid, 0 Unknown, 0 Unchecked, 14.8s Time] [2022-07-21 11:42:31,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29264 states. [2022-07-21 11:42:32,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29264 to 26011. [2022-07-21 11:42:32,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26011 states, 18532 states have (on average 1.3824195985322685) internal successors, (25619), 19533 states have internal predecessors, (25619), 5743 states have call successors, (5743), 1328 states have call predecessors, (5743), 1735 states have return successors, (7471), 5693 states have call predecessors, (7471), 5741 states have call successors, (7471) [2022-07-21 11:42:32,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26011 states to 26011 states and 38833 transitions. [2022-07-21 11:42:32,835 INFO L78 Accepts]: Start accepts. Automaton has 26011 states and 38833 transitions. Word has length 225 [2022-07-21 11:42:32,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:42:32,837 INFO L495 AbstractCegarLoop]: Abstraction has 26011 states and 38833 transitions. [2022-07-21 11:42:32,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.125) internal successors, (105), 3 states have internal predecessors, (105), 3 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-21 11:42:32,837 INFO L276 IsEmpty]: Start isEmpty. Operand 26011 states and 38833 transitions. [2022-07-21 11:42:32,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2022-07-21 11:42:32,871 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:42:32,871 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:42:32,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-21 11:42:32,872 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:42:32,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:42:32,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1956762074, now seen corresponding path program 1 times [2022-07-21 11:42:32,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 11:42:32,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070685939] [2022-07-21 11:42:32,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:42:32,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 11:42:32,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:32,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:42:32,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:32,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:42:32,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:32,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:42:32,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:32,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 11:42:33,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:33,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:42:33,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:33,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:42:33,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:33,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 11:42:33,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:33,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:42:33,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:33,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:42:33,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:33,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 11:42:33,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:33,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:42:33,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:33,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:42:33,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:33,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 11:42:33,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:33,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:42:33,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:33,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 11:42:33,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:33,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:42:33,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:33,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-21 11:42:33,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:33,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:42:33,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:33,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:42:33,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:33,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-21 11:42:33,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:33,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-21 11:42:33,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:33,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-21 11:42:33,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:33,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-21 11:42:33,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:33,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-21 11:42:33,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:33,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-07-21 11:42:33,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:33,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-21 11:42:33,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:33,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-21 11:42:33,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:33,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-21 11:42:33,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:33,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-07-21 11:42:33,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:33,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-07-21 11:42:33,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:33,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:42:33,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:33,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-21 11:42:33,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:33,132 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-07-21 11:42:33,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 11:42:33,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070685939] [2022-07-21 11:42:33,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070685939] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:42:33,132 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:42:33,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-21 11:42:33,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094228150] [2022-07-21 11:42:33,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:42:33,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-21 11:42:33,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 11:42:33,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-21 11:42:33,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-07-21 11:42:33,134 INFO L87 Difference]: Start difference. First operand 26011 states and 38833 transitions. Second operand has 11 states, 11 states have (on average 10.727272727272727) internal successors, (118), 5 states have internal predecessors, (118), 3 states have call successors, (24), 8 states have call predecessors, (24), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-07-21 11:42:49,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:42:49,393 INFO L93 Difference]: Finished difference Result 44427 states and 66859 transitions. [2022-07-21 11:42:49,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-21 11:42:49,394 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.727272727272727) internal successors, (118), 5 states have internal predecessors, (118), 3 states have call successors, (24), 8 states have call predecessors, (24), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 251 [2022-07-21 11:42:49,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:42:49,468 INFO L225 Difference]: With dead ends: 44427 [2022-07-21 11:42:49,469 INFO L226 Difference]: Without dead ends: 18222 [2022-07-21 11:42:49,536 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2022-07-21 11:42:49,538 INFO L413 NwaCegarLoop]: 2110 mSDtfsCounter, 2025 mSDsluCounter, 7489 mSDsCounter, 0 mSdLazyCounter, 10115 mSolverCounterSat, 1634 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2164 SdHoareTripleChecker+Valid, 9599 SdHoareTripleChecker+Invalid, 11749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1634 IncrementalHoareTripleChecker+Valid, 10115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2022-07-21 11:42:49,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2164 Valid, 9599 Invalid, 11749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1634 Valid, 10115 Invalid, 0 Unknown, 0 Unchecked, 15.3s Time] [2022-07-21 11:42:49,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18222 states. [2022-07-21 11:42:50,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18222 to 16129. [2022-07-21 11:42:50,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16129 states, 11481 states have (on average 1.3800191620938942) internal successors, (15844), 12103 states have internal predecessors, (15844), 3559 states have call successors, (3559), 834 states have call predecessors, (3559), 1088 states have return successors, (4632), 3525 states have call predecessors, (4632), 3557 states have call successors, (4632) [2022-07-21 11:42:50,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16129 states to 16129 states and 24035 transitions. [2022-07-21 11:42:50,170 INFO L78 Accepts]: Start accepts. Automaton has 16129 states and 24035 transitions. Word has length 251 [2022-07-21 11:42:50,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:42:50,171 INFO L495 AbstractCegarLoop]: Abstraction has 16129 states and 24035 transitions. [2022-07-21 11:42:50,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.727272727272727) internal successors, (118), 5 states have internal predecessors, (118), 3 states have call successors, (24), 8 states have call predecessors, (24), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-07-21 11:42:50,171 INFO L276 IsEmpty]: Start isEmpty. Operand 16129 states and 24035 transitions. [2022-07-21 11:42:50,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2022-07-21 11:42:50,205 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:42:50,206 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:42:50,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-21 11:42:50,206 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:42:50,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:42:50,206 INFO L85 PathProgramCache]: Analyzing trace with hash 986429778, now seen corresponding path program 1 times [2022-07-21 11:42:50,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 11:42:50,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293092658] [2022-07-21 11:42:50,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:42:50,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 11:42:50,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:50,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:42:50,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:50,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:42:50,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:50,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:42:50,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:50,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 11:42:50,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:50,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:42:50,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:50,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:42:50,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:50,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 11:42:50,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:50,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:42:50,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:50,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:42:50,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:50,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 11:42:50,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:50,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:42:50,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:50,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:42:50,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:50,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 11:42:50,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:50,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:42:50,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:50,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 11:42:50,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:50,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:42:50,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:50,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-21 11:42:50,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:50,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:42:50,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:50,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:42:50,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:50,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 11:42:50,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:50,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-21 11:42:50,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:50,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 11:42:50,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:50,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 11:42:50,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:50,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:42:50,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:50,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 11:42:50,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:50,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 11:42:50,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:50,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 11:42:50,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:50,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:42:50,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:50,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:42:50,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:50,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 11:42:50,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:50,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-21 11:42:50,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:50,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-21 11:42:50,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:50,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-21 11:42:50,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:50,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-21 11:42:50,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:50,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-21 11:42:50,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:50,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:42:50,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:50,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:42:50,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:50,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:42:50,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:50,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 11:42:50,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:50,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 11:42:50,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:50,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 11:42:50,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:50,693 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2022-07-21 11:42:50,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 11:42:50,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293092658] [2022-07-21 11:42:50,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293092658] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:42:50,693 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:42:50,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-21 11:42:50,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43591928] [2022-07-21 11:42:50,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:42:50,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-21 11:42:50,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 11:42:50,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-21 11:42:50,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-07-21 11:42:50,695 INFO L87 Difference]: Start difference. First operand 16129 states and 24035 transitions. Second operand has 13 states, 13 states have (on average 12.692307692307692) internal successors, (165), 5 states have internal predecessors, (165), 2 states have call successors, (35), 10 states have call predecessors, (35), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-07-21 11:42:59,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:42:59,214 INFO L93 Difference]: Finished difference Result 34384 states and 51842 transitions. [2022-07-21 11:42:59,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-21 11:42:59,215 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 12.692307692307692) internal successors, (165), 5 states have internal predecessors, (165), 2 states have call successors, (35), 10 states have call predecessors, (35), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 289 [2022-07-21 11:42:59,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:42:59,285 INFO L225 Difference]: With dead ends: 34384 [2022-07-21 11:42:59,285 INFO L226 Difference]: Without dead ends: 18288 [2022-07-21 11:42:59,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2022-07-21 11:42:59,327 INFO L413 NwaCegarLoop]: 1993 mSDtfsCounter, 6369 mSDsluCounter, 2957 mSDsCounter, 0 mSdLazyCounter, 4086 mSolverCounterSat, 4337 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6643 SdHoareTripleChecker+Valid, 4950 SdHoareTripleChecker+Invalid, 8423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4337 IncrementalHoareTripleChecker+Valid, 4086 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-07-21 11:42:59,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6643 Valid, 4950 Invalid, 8423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4337 Valid, 4086 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2022-07-21 11:42:59,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18288 states. [2022-07-21 11:43:00,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18288 to 16109. [2022-07-21 11:43:00,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16109 states, 11471 states have (on average 1.3794786853805248) internal successors, (15824), 12093 states have internal predecessors, (15824), 3549 states have call successors, (3549), 834 states have call predecessors, (3549), 1088 states have return successors, (4602), 3515 states have call predecessors, (4602), 3547 states have call successors, (4602) [2022-07-21 11:43:00,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16109 states to 16109 states and 23975 transitions. [2022-07-21 11:43:00,102 INFO L78 Accepts]: Start accepts. Automaton has 16109 states and 23975 transitions. Word has length 289 [2022-07-21 11:43:00,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:43:00,102 INFO L495 AbstractCegarLoop]: Abstraction has 16109 states and 23975 transitions. [2022-07-21 11:43:00,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.692307692307692) internal successors, (165), 5 states have internal predecessors, (165), 2 states have call successors, (35), 10 states have call predecessors, (35), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-07-21 11:43:00,103 INFO L276 IsEmpty]: Start isEmpty. Operand 16109 states and 23975 transitions. [2022-07-21 11:43:00,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2022-07-21 11:43:00,129 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:43:00,130 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:43:00,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-21 11:43:00,130 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:43:00,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:43:00,130 INFO L85 PathProgramCache]: Analyzing trace with hash -857816255, now seen corresponding path program 1 times [2022-07-21 11:43:00,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 11:43:00,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157878281] [2022-07-21 11:43:00,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:43:00,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 11:43:00,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:00,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:43:00,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:00,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:00,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:00,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:43:00,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:00,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 11:43:00,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:00,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:00,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:00,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:43:00,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:00,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 11:43:00,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:00,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:00,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:00,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:43:00,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:00,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 11:43:00,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:00,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:00,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:00,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:43:00,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:00,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 11:43:00,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:00,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:00,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:00,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 11:43:00,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:00,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:00,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:00,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-21 11:43:00,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:00,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:43:00,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:00,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:43:00,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:00,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 11:43:00,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:00,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-21 11:43:00,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:00,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 11:43:00,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:00,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 11:43:00,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:00,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:00,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:00,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 11:43:00,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:00,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 11:43:00,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:00,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 11:43:00,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:00,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:00,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:00,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:00,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:00,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 11:43:00,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:00,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-21 11:43:00,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:00,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-21 11:43:00,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:00,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-21 11:43:00,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:00,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-21 11:43:00,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:00,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-21 11:43:00,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:00,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:00,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:00,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:00,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:00,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:43:00,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:00,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 11:43:00,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:00,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 11:43:00,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:00,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 11:43:00,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:00,694 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2022-07-21 11:43:00,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 11:43:00,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157878281] [2022-07-21 11:43:00,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157878281] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:43:00,694 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:43:00,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-21 11:43:00,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007583050] [2022-07-21 11:43:00,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:43:00,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-21 11:43:00,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 11:43:00,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-21 11:43:00,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-07-21 11:43:00,696 INFO L87 Difference]: Start difference. First operand 16109 states and 23975 transitions. Second operand has 13 states, 13 states have (on average 12.76923076923077) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (35), 10 states have call predecessors, (35), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-07-21 11:43:14,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:43:14,202 INFO L93 Difference]: Finished difference Result 34344 states and 51717 transitions. [2022-07-21 11:43:14,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-21 11:43:14,203 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 12.76923076923077) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (35), 10 states have call predecessors, (35), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 290 [2022-07-21 11:43:14,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:43:14,266 INFO L225 Difference]: With dead ends: 34344 [2022-07-21 11:43:14,266 INFO L226 Difference]: Without dead ends: 18268 [2022-07-21 11:43:14,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2022-07-21 11:43:14,307 INFO L413 NwaCegarLoop]: 1981 mSDtfsCounter, 5810 mSDsluCounter, 4242 mSDsCounter, 0 mSdLazyCounter, 6158 mSolverCounterSat, 4100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6084 SdHoareTripleChecker+Valid, 6223 SdHoareTripleChecker+Invalid, 10258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4100 IncrementalHoareTripleChecker+Valid, 6158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2022-07-21 11:43:14,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6084 Valid, 6223 Invalid, 10258 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4100 Valid, 6158 Invalid, 0 Unknown, 0 Unchecked, 12.3s Time] [2022-07-21 11:43:14,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18268 states. [2022-07-21 11:43:15,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18268 to 16089. [2022-07-21 11:43:15,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16089 states, 11461 states have (on average 1.3789372655091179) internal successors, (15804), 12083 states have internal predecessors, (15804), 3539 states have call successors, (3539), 834 states have call predecessors, (3539), 1088 states have return successors, (4572), 3505 states have call predecessors, (4572), 3537 states have call successors, (4572) [2022-07-21 11:43:15,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16089 states to 16089 states and 23915 transitions. [2022-07-21 11:43:15,132 INFO L78 Accepts]: Start accepts. Automaton has 16089 states and 23915 transitions. Word has length 290 [2022-07-21 11:43:15,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:43:15,133 INFO L495 AbstractCegarLoop]: Abstraction has 16089 states and 23915 transitions. [2022-07-21 11:43:15,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.76923076923077) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (35), 10 states have call predecessors, (35), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-07-21 11:43:15,133 INFO L276 IsEmpty]: Start isEmpty. Operand 16089 states and 23915 transitions. [2022-07-21 11:43:15,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2022-07-21 11:43:15,158 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:43:15,158 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:43:15,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-21 11:43:15,158 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:43:15,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:43:15,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1825100178, now seen corresponding path program 1 times [2022-07-21 11:43:15,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 11:43:15,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506178014] [2022-07-21 11:43:15,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:43:15,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 11:43:15,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:15,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:43:15,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:15,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:15,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:15,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:43:15,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:15,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 11:43:15,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:15,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:15,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:15,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:43:15,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:15,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 11:43:15,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:15,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:15,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:15,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:43:15,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:15,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 11:43:15,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:15,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:15,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:15,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:43:15,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:15,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 11:43:15,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:15,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:15,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:15,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 11:43:15,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:15,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:15,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:15,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-21 11:43:15,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:15,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:43:15,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:15,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:43:15,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:15,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 11:43:15,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:15,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-21 11:43:15,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:15,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 11:43:15,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:15,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 11:43:15,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:15,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:15,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:15,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 11:43:15,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:15,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 11:43:15,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:15,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 11:43:15,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:15,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:15,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:15,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:15,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:15,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 11:43:15,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:15,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-21 11:43:15,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:15,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-21 11:43:15,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:15,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-21 11:43:15,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:15,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-21 11:43:15,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:15,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-21 11:43:15,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:15,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:15,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:15,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:15,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:15,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:43:15,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:15,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 11:43:15,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:15,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 11:43:15,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:15,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 11:43:15,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:15,542 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2022-07-21 11:43:15,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 11:43:15,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506178014] [2022-07-21 11:43:15,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506178014] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:43:15,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:43:15,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-21 11:43:15,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774863833] [2022-07-21 11:43:15,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:43:15,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-21 11:43:15,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 11:43:15,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-21 11:43:15,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-07-21 11:43:15,545 INFO L87 Difference]: Start difference. First operand 16089 states and 23915 transitions. Second operand has 13 states, 13 states have (on average 12.615384615384615) internal successors, (164), 5 states have internal predecessors, (164), 2 states have call successors, (35), 10 states have call predecessors, (35), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-07-21 11:43:23,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:43:23,902 INFO L93 Difference]: Finished difference Result 34304 states and 51592 transitions. [2022-07-21 11:43:23,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-21 11:43:23,903 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 12.615384615384615) internal successors, (164), 5 states have internal predecessors, (164), 2 states have call successors, (35), 10 states have call predecessors, (35), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 288 [2022-07-21 11:43:23,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:43:23,954 INFO L225 Difference]: With dead ends: 34304 [2022-07-21 11:43:23,954 INFO L226 Difference]: Without dead ends: 18248 [2022-07-21 11:43:23,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2022-07-21 11:43:23,981 INFO L413 NwaCegarLoop]: 1975 mSDtfsCounter, 4923 mSDsluCounter, 3006 mSDsCounter, 0 mSdLazyCounter, 4155 mSolverCounterSat, 3108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5192 SdHoareTripleChecker+Valid, 4981 SdHoareTripleChecker+Invalid, 7263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3108 IncrementalHoareTripleChecker+Valid, 4155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-07-21 11:43:23,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5192 Valid, 4981 Invalid, 7263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3108 Valid, 4155 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2022-07-21 11:43:23,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18248 states. [2022-07-21 11:43:24,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18248 to 16069. [2022-07-21 11:43:24,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16069 states, 11451 states have (on average 1.3783949000087328) internal successors, (15784), 12073 states have internal predecessors, (15784), 3529 states have call successors, (3529), 834 states have call predecessors, (3529), 1088 states have return successors, (4542), 3495 states have call predecessors, (4542), 3527 states have call successors, (4542) [2022-07-21 11:43:24,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16069 states to 16069 states and 23855 transitions. [2022-07-21 11:43:24,722 INFO L78 Accepts]: Start accepts. Automaton has 16069 states and 23855 transitions. Word has length 288 [2022-07-21 11:43:24,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:43:24,722 INFO L495 AbstractCegarLoop]: Abstraction has 16069 states and 23855 transitions. [2022-07-21 11:43:24,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.615384615384615) internal successors, (164), 5 states have internal predecessors, (164), 2 states have call successors, (35), 10 states have call predecessors, (35), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-07-21 11:43:24,723 INFO L276 IsEmpty]: Start isEmpty. Operand 16069 states and 23855 transitions. [2022-07-21 11:43:24,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2022-07-21 11:43:24,746 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:43:24,746 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:43:24,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-21 11:43:24,747 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:43:24,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:43:24,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1002229883, now seen corresponding path program 1 times [2022-07-21 11:43:24,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 11:43:24,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296334452] [2022-07-21 11:43:24,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:43:24,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 11:43:24,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:24,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:43:24,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:24,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:24,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:24,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:43:24,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:24,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 11:43:24,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:24,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:24,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:24,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:43:24,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:24,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 11:43:24,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:24,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:24,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:24,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:43:24,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:24,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 11:43:24,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:24,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:24,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:24,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:43:24,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:25,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 11:43:25,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:25,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:25,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:25,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 11:43:25,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:25,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:25,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:25,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-21 11:43:25,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:25,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:43:25,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:25,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:43:25,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:25,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 11:43:25,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:25,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-21 11:43:25,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:25,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 11:43:25,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:25,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 11:43:25,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:25,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:25,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:25,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 11:43:25,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:25,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 11:43:25,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:25,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 11:43:25,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:25,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:25,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:25,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:25,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:25,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 11:43:25,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:25,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-21 11:43:25,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:25,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-21 11:43:25,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:25,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-21 11:43:25,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:25,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-21 11:43:25,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:25,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-21 11:43:25,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:25,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:25,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:25,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:25,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:25,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:43:25,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:25,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 11:43:25,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:25,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 11:43:25,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:25,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 11:43:25,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:25,281 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2022-07-21 11:43:25,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 11:43:25,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296334452] [2022-07-21 11:43:25,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296334452] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:43:25,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:43:25,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-21 11:43:25,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319133489] [2022-07-21 11:43:25,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:43:25,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-21 11:43:25,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 11:43:25,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-21 11:43:25,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-07-21 11:43:25,284 INFO L87 Difference]: Start difference. First operand 16069 states and 23855 transitions. Second operand has 13 states, 13 states have (on average 12.846153846153847) internal successors, (167), 5 states have internal predecessors, (167), 2 states have call successors, (35), 10 states have call predecessors, (35), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-07-21 11:43:34,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:43:34,551 INFO L93 Difference]: Finished difference Result 34264 states and 51467 transitions. [2022-07-21 11:43:34,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-21 11:43:34,554 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 12.846153846153847) internal successors, (167), 5 states have internal predecessors, (167), 2 states have call successors, (35), 10 states have call predecessors, (35), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 291 [2022-07-21 11:43:34,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:43:34,611 INFO L225 Difference]: With dead ends: 34264 [2022-07-21 11:43:34,611 INFO L226 Difference]: Without dead ends: 18228 [2022-07-21 11:43:34,645 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2022-07-21 11:43:34,647 INFO L413 NwaCegarLoop]: 2027 mSDtfsCounter, 5897 mSDsluCounter, 3647 mSDsCounter, 0 mSdLazyCounter, 5540 mSolverCounterSat, 4130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6156 SdHoareTripleChecker+Valid, 5674 SdHoareTripleChecker+Invalid, 9670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4130 IncrementalHoareTripleChecker+Valid, 5540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-07-21 11:43:34,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6156 Valid, 5674 Invalid, 9670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4130 Valid, 5540 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2022-07-21 11:43:34,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18228 states. [2022-07-21 11:43:35,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18228 to 16049. [2022-07-21 11:43:35,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16049 states, 11441 states have (on average 1.3778515863997902) internal successors, (15764), 12063 states have internal predecessors, (15764), 3519 states have call successors, (3519), 834 states have call predecessors, (3519), 1088 states have return successors, (4512), 3485 states have call predecessors, (4512), 3517 states have call successors, (4512) [2022-07-21 11:43:35,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16049 states to 16049 states and 23795 transitions. [2022-07-21 11:43:35,527 INFO L78 Accepts]: Start accepts. Automaton has 16049 states and 23795 transitions. Word has length 291 [2022-07-21 11:43:35,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:43:35,527 INFO L495 AbstractCegarLoop]: Abstraction has 16049 states and 23795 transitions. [2022-07-21 11:43:35,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.846153846153847) internal successors, (167), 5 states have internal predecessors, (167), 2 states have call successors, (35), 10 states have call predecessors, (35), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-07-21 11:43:35,527 INFO L276 IsEmpty]: Start isEmpty. Operand 16049 states and 23795 transitions. [2022-07-21 11:43:35,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2022-07-21 11:43:35,541 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:43:35,541 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:43:35,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-21 11:43:35,542 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:43:35,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:43:35,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1611561580, now seen corresponding path program 1 times [2022-07-21 11:43:35,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 11:43:35,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242951712] [2022-07-21 11:43:35,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:43:35,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 11:43:35,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:35,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:43:35,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:35,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:35,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:35,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:43:35,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:35,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 11:43:35,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:35,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:35,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:35,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:43:35,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:35,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 11:43:35,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:35,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:35,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:35,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:43:35,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:35,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 11:43:35,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:35,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:35,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:35,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:43:35,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:35,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 11:43:35,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:35,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:35,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:35,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 11:43:35,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:35,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:35,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:35,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-21 11:43:35,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:35,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:35,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:35,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:43:35,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:35,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-21 11:43:35,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:35,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:35,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:35,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:43:35,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:35,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-21 11:43:35,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:35,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-07-21 11:43:35,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:35,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-07-21 11:43:35,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:35,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-21 11:43:35,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:35,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-21 11:43:35,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:35,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:35,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:35,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-21 11:43:35,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:35,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2022-07-21 11:43:35,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:35,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2022-07-21 11:43:35,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:35,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-07-21 11:43:35,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:35,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-07-21 11:43:35,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:35,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-07-21 11:43:35,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:35,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-07-21 11:43:35,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:35,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-07-21 11:43:35,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:35,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-07-21 11:43:35,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:35,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2022-07-21 11:43:35,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:35,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2022-07-21 11:43:35,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:35,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-07-21 11:43:35,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:35,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-07-21 11:43:35,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:35,861 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 359 trivial. 0 not checked. [2022-07-21 11:43:35,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 11:43:35,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242951712] [2022-07-21 11:43:35,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242951712] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 11:43:35,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1105409284] [2022-07-21 11:43:35,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:43:35,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 11:43:35,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 11:43:35,864 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 11:43:35,867 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-21 11:43:36,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:36,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 2903 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 11:43:36,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:43:36,831 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 359 trivial. 0 not checked. [2022-07-21 11:43:36,831 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:43:36,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1105409284] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:43:36,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 11:43:36,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2022-07-21 11:43:36,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998409879] [2022-07-21 11:43:36,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:43:36,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 11:43:36,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 11:43:36,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 11:43:36,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-07-21 11:43:36,833 INFO L87 Difference]: Start difference. First operand 16049 states and 23795 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-07-21 11:43:38,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:43:38,285 INFO L93 Difference]: Finished difference Result 29251 states and 43417 transitions. [2022-07-21 11:43:38,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 11:43:38,286 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 300 [2022-07-21 11:43:38,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:43:38,362 INFO L225 Difference]: With dead ends: 29251 [2022-07-21 11:43:38,362 INFO L226 Difference]: Without dead ends: 22672 [2022-07-21 11:43:38,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 376 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-07-21 11:43:38,392 INFO L413 NwaCegarLoop]: 4490 mSDtfsCounter, 2978 mSDsluCounter, 10470 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 242 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3000 SdHoareTripleChecker+Valid, 14960 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 242 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-21 11:43:38,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3000 Valid, 14960 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [242 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-21 11:43:38,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22672 states. [2022-07-21 11:43:39,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22672 to 16073. [2022-07-21 11:43:39,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16073 states, 11455 states have (on average 1.3773897861195985) internal successors, (15778), 12079 states have internal predecessors, (15778), 3529 states have call successors, (3529), 834 states have call predecessors, (3529), 1088 states have return successors, (4524), 3495 states have call predecessors, (4524), 3527 states have call successors, (4524) [2022-07-21 11:43:39,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16073 states to 16073 states and 23831 transitions. [2022-07-21 11:43:39,367 INFO L78 Accepts]: Start accepts. Automaton has 16073 states and 23831 transitions. Word has length 300 [2022-07-21 11:43:39,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:43:39,367 INFO L495 AbstractCegarLoop]: Abstraction has 16073 states and 23831 transitions. [2022-07-21 11:43:39,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-07-21 11:43:39,368 INFO L276 IsEmpty]: Start isEmpty. Operand 16073 states and 23831 transitions. [2022-07-21 11:43:39,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2022-07-21 11:43:39,381 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:43:39,382 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:43:39,405 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-21 11:43:39,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-07-21 11:43:39,582 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:43:39,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:43:39,583 INFO L85 PathProgramCache]: Analyzing trace with hash -294841686, now seen corresponding path program 1 times [2022-07-21 11:43:39,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 11:43:39,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820225031] [2022-07-21 11:43:39,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:43:39,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 11:43:39,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:39,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:43:39,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:39,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:39,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:39,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:43:39,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:39,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 11:43:39,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:39,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:39,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:39,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:43:39,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:39,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 11:43:39,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:39,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:39,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:39,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:43:39,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:39,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 11:43:39,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:39,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:39,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:39,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:43:39,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:39,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 11:43:39,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:39,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:39,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:39,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 11:43:39,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:39,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:39,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:39,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-21 11:43:39,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:39,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:39,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:39,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:43:39,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:39,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-21 11:43:39,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:39,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:39,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:39,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:43:39,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:39,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-21 11:43:39,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:39,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-07-21 11:43:39,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:39,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-07-21 11:43:39,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:39,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-21 11:43:39,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:39,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-21 11:43:39,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:39,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:39,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:39,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-21 11:43:39,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:39,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2022-07-21 11:43:39,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:39,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2022-07-21 11:43:39,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:39,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-07-21 11:43:39,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:39,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-07-21 11:43:39,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:39,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-07-21 11:43:39,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:39,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-07-21 11:43:39,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:39,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-07-21 11:43:39,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:39,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-07-21 11:43:39,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:39,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2022-07-21 11:43:39,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:39,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2022-07-21 11:43:39,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:39,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-07-21 11:43:39,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:39,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-07-21 11:43:39,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:39,897 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2022-07-21 11:43:39,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 11:43:39,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820225031] [2022-07-21 11:43:39,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820225031] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 11:43:39,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1071871613] [2022-07-21 11:43:39,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:43:39,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 11:43:39,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 11:43:39,899 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 11:43:39,900 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-21 11:43:40,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:40,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 2898 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-21 11:43:40,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:43:40,792 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2022-07-21 11:43:40,792 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:43:40,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1071871613] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:43:40,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 11:43:40,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 15 [2022-07-21 11:43:40,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100942478] [2022-07-21 11:43:40,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:43:40,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 11:43:40,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 11:43:40,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 11:43:40,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2022-07-21 11:43:40,795 INFO L87 Difference]: Start difference. First operand 16073 states and 23831 transitions. Second operand has 6 states, 5 states have (on average 24.6) internal successors, (123), 6 states have internal predecessors, (123), 3 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2022-07-21 11:43:41,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:43:41,733 INFO L93 Difference]: Finished difference Result 32157 states and 47710 transitions. [2022-07-21 11:43:41,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 11:43:41,734 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 24.6) internal successors, (123), 6 states have internal predecessors, (123), 3 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 300 [2022-07-21 11:43:41,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:43:41,789 INFO L225 Difference]: With dead ends: 32157 [2022-07-21 11:43:41,789 INFO L226 Difference]: Without dead ends: 16103 [2022-07-21 11:43:41,825 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 373 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2022-07-21 11:43:41,826 INFO L413 NwaCegarLoop]: 2353 mSDtfsCounter, 6 mSDsluCounter, 9395 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 11748 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 11:43:41,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 11748 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 11:43:41,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16103 states. [2022-07-21 11:43:42,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16103 to 16076. [2022-07-21 11:43:42,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16076 states, 11457 states have (on average 1.3774111896657066) internal successors, (15781), 12082 states have internal predecessors, (15781), 3529 states have call successors, (3529), 834 states have call predecessors, (3529), 1089 states have return successors, (4528), 3495 states have call predecessors, (4528), 3527 states have call successors, (4528) [2022-07-21 11:43:42,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16076 states to 16076 states and 23838 transitions. [2022-07-21 11:43:42,786 INFO L78 Accepts]: Start accepts. Automaton has 16076 states and 23838 transitions. Word has length 300 [2022-07-21 11:43:42,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:43:42,786 INFO L495 AbstractCegarLoop]: Abstraction has 16076 states and 23838 transitions. [2022-07-21 11:43:42,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 24.6) internal successors, (123), 6 states have internal predecessors, (123), 3 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2022-07-21 11:43:42,787 INFO L276 IsEmpty]: Start isEmpty. Operand 16076 states and 23838 transitions. [2022-07-21 11:43:42,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2022-07-21 11:43:42,800 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:43:42,801 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:43:42,824 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-21 11:43:43,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-07-21 11:43:43,004 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:43:43,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:43:43,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1195677722, now seen corresponding path program 1 times [2022-07-21 11:43:43,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 11:43:43,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374435488] [2022-07-21 11:43:43,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:43:43,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 11:43:43,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:43,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:43:43,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:43,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:43,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:43,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:43:43,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:43,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 11:43:43,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:43,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:43,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:43,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:43:43,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:43,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 11:43:43,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:43,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:43,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:43,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:43:43,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:43,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 11:43:43,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:43,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:43,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:43,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:43:43,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:43,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 11:43:43,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:43,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:43,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:43,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-21 11:43:43,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:43,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:43,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:43,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-21 11:43:43,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:43,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:43,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:43,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:43:43,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:43,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-21 11:43:43,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:43,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:43,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:43,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:43:43,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:43,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-21 11:43:43,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:43,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-21 11:43:43,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:43,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-21 11:43:43,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:43,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-21 11:43:43,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:43,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-21 11:43:43,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:43,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:43,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:43,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-21 11:43:43,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:43,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-21 11:43:43,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:43,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-07-21 11:43:43,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:43,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-07-21 11:43:43,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:43,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-07-21 11:43:43,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:43,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-07-21 11:43:43,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:43,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2022-07-21 11:43:43,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:43,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-07-21 11:43:43,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:43,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-07-21 11:43:43,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:43,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-07-21 11:43:43,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:43,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2022-07-21 11:43:43,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:43,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-07-21 11:43:43,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:43,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-07-21 11:43:43,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:43,332 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 362 trivial. 0 not checked. [2022-07-21 11:43:43,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 11:43:43,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374435488] [2022-07-21 11:43:43,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374435488] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 11:43:43,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1772607010] [2022-07-21 11:43:43,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:43:43,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 11:43:43,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 11:43:43,334 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 11:43:43,335 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-21 11:43:44,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:44,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 2928 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-21 11:43:44,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:43:44,190 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 124 proven. 1 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2022-07-21 11:43:44,191 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 11:43:44,467 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked. [2022-07-21 11:43:44,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1772607010] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 11:43:44,468 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 11:43:44,468 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 7] total 20 [2022-07-21 11:43:44,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053118133] [2022-07-21 11:43:44,468 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 11:43:44,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-07-21 11:43:44,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 11:43:44,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-07-21 11:43:44,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2022-07-21 11:43:44,469 INFO L87 Difference]: Start difference. First operand 16076 states and 23838 transitions. Second operand has 20 states, 18 states have (on average 11.444444444444445) internal successors, (206), 13 states have internal predecessors, (206), 4 states have call successors, (78), 8 states have call predecessors, (78), 6 states have return successors, (63), 5 states have call predecessors, (63), 4 states have call successors, (63) [2022-07-21 11:43:59,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:43:59,382 INFO L93 Difference]: Finished difference Result 34260 states and 51459 transitions. [2022-07-21 11:43:59,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-07-21 11:43:59,385 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 11.444444444444445) internal successors, (206), 13 states have internal predecessors, (206), 4 states have call successors, (78), 8 states have call predecessors, (78), 6 states have return successors, (63), 5 states have call predecessors, (63), 4 states have call successors, (63) Word has length 302 [2022-07-21 11:43:59,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:43:59,443 INFO L225 Difference]: With dead ends: 34260 [2022-07-21 11:43:59,443 INFO L226 Difference]: Without dead ends: 18203 [2022-07-21 11:43:59,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 705 GetRequests, 673 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=180, Invalid=876, Unknown=0, NotChecked=0, Total=1056 [2022-07-21 11:43:59,478 INFO L413 NwaCegarLoop]: 2144 mSDtfsCounter, 3294 mSDsluCounter, 10736 mSDsCounter, 0 mSdLazyCounter, 13091 mSolverCounterSat, 2810 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3436 SdHoareTripleChecker+Valid, 12880 SdHoareTripleChecker+Invalid, 15901 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2810 IncrementalHoareTripleChecker+Valid, 13091 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2022-07-21 11:43:59,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3436 Valid, 12880 Invalid, 15901 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2810 Valid, 13091 Invalid, 0 Unknown, 0 Unchecked, 13.2s Time] [2022-07-21 11:43:59,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18203 states. [2022-07-21 11:44:00,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18203 to 16089. [2022-07-21 11:44:00,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16089 states, 11468 states have (on average 1.377136379490757) internal successors, (15793), 12091 states have internal predecessors, (15793), 3529 states have call successors, (3529), 834 states have call predecessors, (3529), 1091 states have return successors, (4537), 3499 states have call predecessors, (4537), 3527 states have call successors, (4537) [2022-07-21 11:44:00,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16089 states to 16089 states and 23859 transitions. [2022-07-21 11:44:00,408 INFO L78 Accepts]: Start accepts. Automaton has 16089 states and 23859 transitions. Word has length 302 [2022-07-21 11:44:00,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:44:00,408 INFO L495 AbstractCegarLoop]: Abstraction has 16089 states and 23859 transitions. [2022-07-21 11:44:00,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 11.444444444444445) internal successors, (206), 13 states have internal predecessors, (206), 4 states have call successors, (78), 8 states have call predecessors, (78), 6 states have return successors, (63), 5 states have call predecessors, (63), 4 states have call successors, (63) [2022-07-21 11:44:00,409 INFO L276 IsEmpty]: Start isEmpty. Operand 16089 states and 23859 transitions. [2022-07-21 11:44:00,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2022-07-21 11:44:00,424 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:44:00,424 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:44:00,452 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-21 11:44:00,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 11:44:00,632 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:44:00,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:44:00,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1591977654, now seen corresponding path program 1 times [2022-07-21 11:44:00,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 11:44:00,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45862402] [2022-07-21 11:44:00,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:44:00,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 11:44:00,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:00,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:44:00,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:00,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:00,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:00,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:44:00,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:00,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 11:44:00,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:00,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:00,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:00,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:44:00,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:00,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 11:44:00,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:00,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:00,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:00,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:44:00,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:00,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 11:44:00,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:00,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:00,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:00,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:44:00,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:00,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 11:44:00,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:00,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:00,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:00,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 11:44:00,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:00,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:00,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:00,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-21 11:44:00,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:00,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:00,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:00,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:44:00,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:00,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 11:44:00,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:00,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:00,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:00,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:44:00,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:00,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-21 11:44:00,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:00,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:44:00,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:00,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-21 11:44:00,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:00,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-21 11:44:00,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:00,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-21 11:44:00,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:00,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-21 11:44:00,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:00,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:00,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:00,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-07-21 11:44:00,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:01,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2022-07-21 11:44:01,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:01,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-07-21 11:44:01,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:01,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-07-21 11:44:01,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:01,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-07-21 11:44:01,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:01,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2022-07-21 11:44:01,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:01,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2022-07-21 11:44:01,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:01,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-07-21 11:44:01,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:01,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-07-21 11:44:01,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:01,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-07-21 11:44:01,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:01,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-07-21 11:44:01,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:01,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-07-21 11:44:01,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:01,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-07-21 11:44:01,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:01,186 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 395 trivial. 0 not checked. [2022-07-21 11:44:01,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 11:44:01,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45862402] [2022-07-21 11:44:01,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45862402] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:44:01,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:44:01,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-07-21 11:44:01,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640301832] [2022-07-21 11:44:01,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:44:01,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-21 11:44:01,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 11:44:01,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-21 11:44:01,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2022-07-21 11:44:01,188 INFO L87 Difference]: Start difference. First operand 16089 states and 23859 transitions. Second operand has 15 states, 14 states have (on average 8.714285714285714) internal successors, (122), 7 states have internal predecessors, (122), 3 states have call successors, (32), 8 states have call predecessors, (32), 4 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) [2022-07-21 11:44:17,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:44:17,973 INFO L93 Difference]: Finished difference Result 23268 states and 35434 transitions. [2022-07-21 11:44:17,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-21 11:44:17,974 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 8.714285714285714) internal successors, (122), 7 states have internal predecessors, (122), 3 states have call successors, (32), 8 states have call predecessors, (32), 4 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) Word has length 310 [2022-07-21 11:44:17,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:44:18,043 INFO L225 Difference]: With dead ends: 23268 [2022-07-21 11:44:18,043 INFO L226 Difference]: Without dead ends: 19549 [2022-07-21 11:44:18,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=124, Invalid=428, Unknown=0, NotChecked=0, Total=552 [2022-07-21 11:44:18,060 INFO L413 NwaCegarLoop]: 2822 mSDtfsCounter, 4276 mSDsluCounter, 15459 mSDsCounter, 0 mSdLazyCounter, 14056 mSolverCounterSat, 3413 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4569 SdHoareTripleChecker+Valid, 18281 SdHoareTripleChecker+Invalid, 17469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3413 IncrementalHoareTripleChecker+Valid, 14056 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2022-07-21 11:44:18,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4569 Valid, 18281 Invalid, 17469 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3413 Valid, 14056 Invalid, 0 Unknown, 0 Unchecked, 15.3s Time] [2022-07-21 11:44:18,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19549 states. [2022-07-21 11:44:18,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19549 to 16099. [2022-07-21 11:44:18,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16099 states, 11474 states have (on average 1.3769391668119226) internal successors, (15799), 12097 states have internal predecessors, (15799), 3531 states have call successors, (3531), 834 states have call predecessors, (3531), 1093 states have return successors, (4545), 3503 states have call predecessors, (4545), 3529 states have call successors, (4545) [2022-07-21 11:44:18,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16099 states to 16099 states and 23875 transitions. [2022-07-21 11:44:18,953 INFO L78 Accepts]: Start accepts. Automaton has 16099 states and 23875 transitions. Word has length 310 [2022-07-21 11:44:18,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:44:18,953 INFO L495 AbstractCegarLoop]: Abstraction has 16099 states and 23875 transitions. [2022-07-21 11:44:18,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 8.714285714285714) internal successors, (122), 7 states have internal predecessors, (122), 3 states have call successors, (32), 8 states have call predecessors, (32), 4 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) [2022-07-21 11:44:18,953 INFO L276 IsEmpty]: Start isEmpty. Operand 16099 states and 23875 transitions. [2022-07-21 11:44:18,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2022-07-21 11:44:18,969 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:44:18,969 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:44:18,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-21 11:44:18,969 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:44:18,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:44:18,970 INFO L85 PathProgramCache]: Analyzing trace with hash -35733082, now seen corresponding path program 1 times [2022-07-21 11:44:18,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 11:44:18,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886893160] [2022-07-21 11:44:18,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:44:18,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 11:44:19,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:19,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:44:19,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:19,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:19,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:19,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:44:19,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:19,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 11:44:19,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:19,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:19,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:19,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:44:19,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:19,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 11:44:19,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:19,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:19,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:19,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:44:19,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:19,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 11:44:19,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:19,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:19,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:19,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:44:19,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:19,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 11:44:19,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:19,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:19,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:19,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 11:44:19,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:19,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:19,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:19,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-21 11:44:19,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:19,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:19,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:19,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:44:19,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:19,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 11:44:19,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:19,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:19,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:19,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:44:19,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:19,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-21 11:44:19,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:19,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:44:19,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:19,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-21 11:44:19,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:19,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-21 11:44:19,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:19,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-21 11:44:19,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:19,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-21 11:44:19,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:19,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:19,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:19,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-07-21 11:44:19,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:19,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2022-07-21 11:44:19,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:19,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-07-21 11:44:19,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:19,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-07-21 11:44:19,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:19,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-07-21 11:44:19,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:19,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2022-07-21 11:44:19,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:19,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2022-07-21 11:44:19,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:19,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-07-21 11:44:19,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:19,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-07-21 11:44:19,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:19,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-07-21 11:44:19,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:19,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-07-21 11:44:19,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:19,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-07-21 11:44:19,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:19,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-07-21 11:44:19,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:19,446 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 394 trivial. 0 not checked. [2022-07-21 11:44:19,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 11:44:19,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886893160] [2022-07-21 11:44:19,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886893160] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 11:44:19,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [306588778] [2022-07-21 11:44:19,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:44:19,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 11:44:19,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 11:44:19,448 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 11:44:19,449 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-21 11:44:20,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:20,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 2985 conjuncts, 20 conjunts are in the unsatisfiable core [2022-07-21 11:44:20,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:44:20,555 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 145 proven. 3 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2022-07-21 11:44:20,556 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 11:44:20,979 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 394 trivial. 0 not checked. [2022-07-21 11:44:20,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [306588778] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 11:44:20,979 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 11:44:20,980 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 8, 8] total 22 [2022-07-21 11:44:20,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842284416] [2022-07-21 11:44:20,980 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 11:44:20,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-07-21 11:44:20,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 11:44:20,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-07-21 11:44:20,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2022-07-21 11:44:20,981 INFO L87 Difference]: Start difference. First operand 16099 states and 23875 transitions. Second operand has 22 states, 20 states have (on average 9.0) internal successors, (180), 16 states have internal predecessors, (180), 4 states have call successors, (81), 8 states have call predecessors, (81), 6 states have return successors, (61), 4 states have call predecessors, (61), 4 states have call successors, (61) [2022-07-21 11:44:44,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:44:44,459 INFO L93 Difference]: Finished difference Result 34305 states and 51588 transitions. [2022-07-21 11:44:44,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-21 11:44:44,460 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 9.0) internal successors, (180), 16 states have internal predecessors, (180), 4 states have call successors, (81), 8 states have call predecessors, (81), 6 states have return successors, (61), 4 states have call predecessors, (61), 4 states have call successors, (61) Word has length 311 [2022-07-21 11:44:44,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:44:44,522 INFO L225 Difference]: With dead ends: 34305 [2022-07-21 11:44:44,522 INFO L226 Difference]: Without dead ends: 18225 [2022-07-21 11:44:44,556 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 726 GetRequests, 691 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=202, Invalid=988, Unknown=0, NotChecked=0, Total=1190 [2022-07-21 11:44:44,556 INFO L413 NwaCegarLoop]: 2151 mSDtfsCounter, 3803 mSDsluCounter, 16786 mSDsCounter, 0 mSdLazyCounter, 20428 mSolverCounterSat, 3348 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3949 SdHoareTripleChecker+Valid, 18937 SdHoareTripleChecker+Invalid, 23776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3348 IncrementalHoareTripleChecker+Valid, 20428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.6s IncrementalHoareTripleChecker+Time [2022-07-21 11:44:44,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3949 Valid, 18937 Invalid, 23776 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3348 Valid, 20428 Invalid, 0 Unknown, 0 Unchecked, 21.6s Time] [2022-07-21 11:44:44,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18225 states. [2022-07-21 11:44:45,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18225 to 16100. [2022-07-21 11:44:45,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16100 states, 11475 states have (on average 1.3769934640522876) internal successors, (15801), 12098 states have internal predecessors, (15801), 3531 states have call successors, (3531), 834 states have call predecessors, (3531), 1093 states have return successors, (4545), 3503 states have call predecessors, (4545), 3529 states have call successors, (4545) [2022-07-21 11:44:45,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16100 states to 16100 states and 23877 transitions. [2022-07-21 11:44:45,571 INFO L78 Accepts]: Start accepts. Automaton has 16100 states and 23877 transitions. Word has length 311 [2022-07-21 11:44:45,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:44:45,572 INFO L495 AbstractCegarLoop]: Abstraction has 16100 states and 23877 transitions. [2022-07-21 11:44:45,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 9.0) internal successors, (180), 16 states have internal predecessors, (180), 4 states have call successors, (81), 8 states have call predecessors, (81), 6 states have return successors, (61), 4 states have call predecessors, (61), 4 states have call successors, (61) [2022-07-21 11:44:45,572 INFO L276 IsEmpty]: Start isEmpty. Operand 16100 states and 23877 transitions. [2022-07-21 11:44:45,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2022-07-21 11:44:45,586 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:44:45,586 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:44:45,610 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-21 11:44:45,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-07-21 11:44:45,787 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:44:45,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:44:45,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1042530326, now seen corresponding path program 2 times [2022-07-21 11:44:45,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 11:44:45,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515007284] [2022-07-21 11:44:45,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:44:45,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 11:44:45,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:45,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:44:45,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:45,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:45,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:45,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:44:45,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:45,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 11:44:45,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:45,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:45,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:45,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:44:45,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:45,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 11:44:45,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:45,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:45,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:45,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:44:45,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:45,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 11:44:45,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:45,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:45,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:45,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:44:45,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:45,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 11:44:45,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:45,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:45,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:46,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-21 11:44:46,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:46,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:46,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:46,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-21 11:44:46,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:46,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:46,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:46,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:44:46,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:46,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-21 11:44:46,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:46,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:46,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:46,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:44:46,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:46,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-07-21 11:44:46,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:46,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:44:46,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:46,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-21 11:44:46,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:46,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-21 11:44:46,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:46,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-21 11:44:46,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:46,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-21 11:44:46,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:46,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:46,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:46,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-07-21 11:44:46,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:46,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2022-07-21 11:44:46,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:46,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-07-21 11:44:46,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:46,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-07-21 11:44:46,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:46,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-07-21 11:44:46,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:46,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-07-21 11:44:46,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:46,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2022-07-21 11:44:46,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:46,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-07-21 11:44:46,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:46,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-07-21 11:44:46,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:46,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2022-07-21 11:44:46,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:46,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2022-07-21 11:44:46,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:46,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-07-21 11:44:46,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:46,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2022-07-21 11:44:46,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:46,205 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 397 trivial. 0 not checked. [2022-07-21 11:44:46,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 11:44:46,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515007284] [2022-07-21 11:44:46,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515007284] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 11:44:46,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [646088797] [2022-07-21 11:44:46,205 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-21 11:44:46,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 11:44:46,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 11:44:46,207 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 11:44:46,212 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-21 11:44:47,286 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-21 11:44:47,286 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-21 11:44:47,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 3015 conjuncts, 23 conjunts are in the unsatisfiable core [2022-07-21 11:44:47,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:44:47,462 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 152 proven. 6 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2022-07-21 11:44:47,462 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 11:44:47,889 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 397 trivial. 0 not checked. [2022-07-21 11:44:47,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [646088797] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 11:44:47,889 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 11:44:47,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 9, 9] total 24 [2022-07-21 11:44:47,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349897236] [2022-07-21 11:44:47,890 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 11:44:47,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-07-21 11:44:47,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 11:44:47,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-07-21 11:44:47,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=481, Unknown=0, NotChecked=0, Total=552 [2022-07-21 11:44:47,891 INFO L87 Difference]: Start difference. First operand 16100 states and 23877 transitions. Second operand has 24 states, 22 states have (on average 8.272727272727273) internal successors, (182), 18 states have internal predecessors, (182), 4 states have call successors, (81), 8 states have call predecessors, (81), 6 states have return successors, (61), 4 states have call predecessors, (61), 4 states have call successors, (61)