./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--staging--slicoss--slicoss.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--staging--slicoss--slicoss.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c3e9b23fefd4aff564027293c77af69f71c45b79d0c58b8bd829ffe606e21709 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-20 01:35:10,614 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 01:35:10,617 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 01:35:10,661 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 01:35:10,661 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 01:35:10,663 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 01:35:10,665 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 01:35:10,668 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 01:35:10,669 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 01:35:10,675 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 01:35:10,676 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 01:35:10,678 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 01:35:10,679 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 01:35:10,680 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 01:35:10,681 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 01:35:10,685 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 01:35:10,686 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 01:35:10,688 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 01:35:10,689 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 01:35:10,696 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 01:35:10,698 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 01:35:10,698 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 01:35:10,699 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 01:35:10,700 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 01:35:10,701 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 01:35:10,704 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 01:35:10,705 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 01:35:10,705 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 01:35:10,706 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 01:35:10,706 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 01:35:10,707 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 01:35:10,707 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 01:35:10,709 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 01:35:10,710 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 01:35:10,711 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 01:35:10,711 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 01:35:10,712 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 01:35:10,712 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 01:35:10,712 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 01:35:10,713 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 01:35:10,713 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 01:35:10,715 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 01:35:10,716 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-20 01:35:10,745 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 01:35:10,745 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 01:35:10,746 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 01:35:10,746 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 01:35:10,747 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 01:35:10,747 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 01:35:10,747 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 01:35:10,748 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 01:35:10,748 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 01:35:10,749 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 01:35:10,749 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-20 01:35:10,749 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 01:35:10,749 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-20 01:35:10,749 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 01:35:10,750 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-20 01:35:10,750 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-20 01:35:10,750 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 01:35:10,750 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-20 01:35:10,751 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 01:35:10,751 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 01:35:10,752 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 01:35:10,752 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 01:35:10,752 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 01:35:10,752 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 01:35:10,752 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-20 01:35:10,753 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-20 01:35:10,753 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-20 01:35:10,753 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-20 01:35:10,761 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-20 01:35:10,761 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-20 01:35:10,762 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3e9b23fefd4aff564027293c77af69f71c45b79d0c58b8bd829ffe606e21709 [2022-07-20 01:35:11,023 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 01:35:11,052 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 01:35:11,055 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 01:35:11,056 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 01:35:11,056 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 01:35:11,057 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--staging--slicoss--slicoss.ko-entry_point.cil.out.i [2022-07-20 01:35:11,112 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35f26325b/4fca18a71b2d4f729177443768f27ba8/FLAG63ac7f70a [2022-07-20 01:35:11,920 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 01:35:11,920 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--staging--slicoss--slicoss.ko-entry_point.cil.out.i [2022-07-20 01:35:11,984 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35f26325b/4fca18a71b2d4f729177443768f27ba8/FLAG63ac7f70a [2022-07-20 01:35:12,104 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35f26325b/4fca18a71b2d4f729177443768f27ba8 [2022-07-20 01:35:12,107 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 01:35:12,108 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 01:35:12,109 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 01:35:12,109 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 01:35:12,113 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 01:35:12,113 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:35:12" (1/1) ... [2022-07-20 01:35:12,114 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24de4af1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:35:12, skipping insertion in model container [2022-07-20 01:35:12,114 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:35:12" (1/1) ... [2022-07-20 01:35:12,121 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 01:35:12,248 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 01:35:14,177 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--staging--slicoss--slicoss.ko-entry_point.cil.out.i[318989,319002] [2022-07-20 01:35:14,235 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 01:35:14,268 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 01:35:14,636 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--staging--slicoss--slicoss.ko-entry_point.cil.out.i[318989,319002] [2022-07-20 01:35:14,640 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 01:35:14,748 INFO L208 MainTranslator]: Completed translation [2022-07-20 01:35:14,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:35:14 WrapperNode [2022-07-20 01:35:14,750 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-20 01:35:14,751 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-20 01:35:14,751 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-20 01:35:14,751 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-20 01:35:14,757 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:35:14" (1/1) ... [2022-07-20 01:35:14,869 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:35:14" (1/1) ... [2022-07-20 01:35:15,089 INFO L137 Inliner]: procedures = 285, calls = 2040, calls flagged for inlining = 151, calls inlined = 148, statements flattened = 5707 [2022-07-20 01:35:15,090 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-20 01:35:15,091 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-20 01:35:15,091 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-20 01:35:15,091 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-20 01:35:15,099 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:35:14" (1/1) ... [2022-07-20 01:35:15,099 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:35:14" (1/1) ... [2022-07-20 01:35:15,157 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:35:14" (1/1) ... [2022-07-20 01:35:15,159 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:35:14" (1/1) ... [2022-07-20 01:35:15,289 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:35:14" (1/1) ... [2022-07-20 01:35:15,324 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:35:14" (1/1) ... [2022-07-20 01:35:15,411 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:35:14" (1/1) ... [2022-07-20 01:35:15,449 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-20 01:35:15,470 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-20 01:35:15,471 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-20 01:35:15,471 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-20 01:35:15,472 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:35:14" (1/1) ... [2022-07-20 01:35:15,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 01:35:15,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 01:35:15,532 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) [2022-07-20 01:35:15,555 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 [2022-07-20 01:35:15,603 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-20 01:35:15,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-20 01:35:15,604 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-20 01:35:15,604 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-20 01:35:15,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-20 01:35:15,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-20 01:35:15,604 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-20 01:35:15,604 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-20 01:35:15,605 INFO L130 BoogieDeclarations]: Found specification of procedure slic_mcast_set_mask [2022-07-20 01:35:15,605 INFO L138 BoogieDeclarations]: Found implementation of procedure slic_mcast_set_mask [2022-07-20 01:35:15,605 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-07-20 01:35:15,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-07-20 01:35:15,605 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-20 01:35:15,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-20 01:35:15,606 INFO L130 BoogieDeclarations]: Found specification of procedure slic_intagg_set [2022-07-20 01:35:15,606 INFO L138 BoogieDeclarations]: Found implementation of procedure slic_intagg_set [2022-07-20 01:35:15,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-20 01:35:15,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-20 01:35:15,606 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-20 01:35:15,606 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-20 01:35:15,607 INFO L130 BoogieDeclarations]: Found specification of procedure slic_mcast_set_list [2022-07-20 01:35:15,607 INFO L138 BoogieDeclarations]: Found implementation of procedure slic_mcast_set_list [2022-07-20 01:35:15,607 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-20 01:35:15,607 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-20 01:35:15,607 INFO L130 BoogieDeclarations]: Found specification of procedure slic_upr_queue_request [2022-07-20 01:35:15,607 INFO L138 BoogieDeclarations]: Found implementation of procedure slic_upr_queue_request [2022-07-20 01:35:15,607 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-20 01:35:15,608 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-20 01:35:15,608 INFO L130 BoogieDeclarations]: Found specification of procedure slic_link_config [2022-07-20 01:35:15,608 INFO L138 BoogieDeclarations]: Found implementation of procedure slic_link_config [2022-07-20 01:35:15,608 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-20 01:35:15,608 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-20 01:35:15,608 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-07-20 01:35:15,609 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-07-20 01:35:15,609 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-20 01:35:15,609 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-20 01:35:15,610 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_2 [2022-07-20 01:35:15,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_2 [2022-07-20 01:35:15,610 INFO L130 BoogieDeclarations]: Found specification of procedure slic_reg64_write [2022-07-20 01:35:15,610 INFO L138 BoogieDeclarations]: Found implementation of procedure slic_reg64_write [2022-07-20 01:35:15,610 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-20 01:35:15,610 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-20 01:35:15,611 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_3 [2022-07-20 01:35:15,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_3 [2022-07-20 01:35:15,611 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-20 01:35:15,611 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-20 01:35:15,612 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-07-20 01:35:15,612 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-07-20 01:35:15,612 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-20 01:35:15,612 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-20 01:35:15,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-07-20 01:35:15,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-07-20 01:35:15,613 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-20 01:35:15,613 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-20 01:35:15,613 INFO L130 BoogieDeclarations]: Found specification of procedure slic_rspqueue_free [2022-07-20 01:35:15,614 INFO L138 BoogieDeclarations]: Found implementation of procedure slic_rspqueue_free [2022-07-20 01:35:15,614 INFO L130 BoogieDeclarations]: Found specification of procedure slic_upr_request_complete [2022-07-20 01:35:15,615 INFO L138 BoogieDeclarations]: Found implementation of procedure slic_upr_request_complete [2022-07-20 01:35:15,615 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2022-07-20 01:35:15,616 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2022-07-20 01:35:15,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-20 01:35:15,616 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-07-20 01:35:15,616 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-07-20 01:35:15,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-20 01:35:15,616 INFO L130 BoogieDeclarations]: Found specification of procedure slic_link_event_handler [2022-07-20 01:35:15,617 INFO L138 BoogieDeclarations]: Found implementation of procedure slic_link_event_handler [2022-07-20 01:35:15,617 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2022-07-20 01:35:15,617 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2022-07-20 01:35:15,617 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-20 01:35:15,617 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-20 01:35:15,617 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2022-07-20 01:35:15,617 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2022-07-20 01:35:15,618 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-20 01:35:15,618 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-20 01:35:15,618 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-20 01:35:15,618 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-20 01:35:15,618 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-20 01:35:15,619 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-20 01:35:15,619 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2022-07-20 01:35:15,619 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2022-07-20 01:35:15,620 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2022-07-20 01:35:15,620 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2022-07-20 01:35:15,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-20 01:35:15,620 INFO L130 BoogieDeclarations]: Found specification of procedure slic_mac_address_config [2022-07-20 01:35:15,620 INFO L138 BoogieDeclarations]: Found implementation of procedure slic_mac_address_config [2022-07-20 01:35:15,620 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-07-20 01:35:15,621 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-07-20 01:35:15,621 INFO L130 BoogieDeclarations]: Found specification of procedure slic_cmdq_addcmdpage [2022-07-20 01:35:15,621 INFO L138 BoogieDeclarations]: Found implementation of procedure slic_cmdq_addcmdpage [2022-07-20 01:35:15,621 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-20 01:35:15,622 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-20 01:35:15,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-20 01:35:15,622 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-20 01:35:15,622 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-20 01:35:15,622 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-20 01:35:15,623 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-20 01:35:15,623 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-20 01:35:15,624 INFO L130 BoogieDeclarations]: Found specification of procedure slic_upr_start [2022-07-20 01:35:15,624 INFO L138 BoogieDeclarations]: Found implementation of procedure slic_upr_start [2022-07-20 01:35:15,624 INFO L130 BoogieDeclarations]: Found specification of procedure slic_rcvqueue_fill [2022-07-20 01:35:15,625 INFO L138 BoogieDeclarations]: Found implementation of procedure slic_rcvqueue_fill [2022-07-20 01:35:15,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-20 01:35:15,625 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-20 01:35:15,625 INFO L130 BoogieDeclarations]: Found specification of procedure slic_rcvqueue_reinsert [2022-07-20 01:35:15,625 INFO L138 BoogieDeclarations]: Found implementation of procedure slic_rcvqueue_reinsert [2022-07-20 01:35:15,625 INFO L130 BoogieDeclarations]: Found specification of procedure slic_mac_set_address [2022-07-20 01:35:15,625 INFO L138 BoogieDeclarations]: Found implementation of procedure slic_mac_set_address [2022-07-20 01:35:15,626 INFO L130 BoogieDeclarations]: Found specification of procedure slic_reg32_write [2022-07-20 01:35:15,626 INFO L138 BoogieDeclarations]: Found implementation of procedure slic_reg32_write [2022-07-20 01:35:15,626 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_3 [2022-07-20 01:35:15,627 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_3 [2022-07-20 01:35:15,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-07-20 01:35:15,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-07-20 01:35:15,627 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-07-20 01:35:15,628 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-07-20 01:35:15,628 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-20 01:35:15,628 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-20 01:35:15,629 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-20 01:35:15,629 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-20 01:35:15,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-20 01:35:15,631 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-20 01:35:15,632 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-20 01:35:15,632 INFO L130 BoogieDeclarations]: Found specification of procedure __bitrev16 [2022-07-20 01:35:15,633 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitrev16 [2022-07-20 01:35:15,634 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-20 01:35:15,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-20 01:35:15,634 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-20 01:35:15,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-20 01:35:15,641 INFO L130 BoogieDeclarations]: Found specification of procedure slic_ioctl [2022-07-20 01:35:15,641 INFO L138 BoogieDeclarations]: Found implementation of procedure slic_ioctl [2022-07-20 01:35:15,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-20 01:35:15,642 INFO L130 BoogieDeclarations]: Found specification of procedure slic_config_set [2022-07-20 01:35:15,642 INFO L138 BoogieDeclarations]: Found implementation of procedure slic_config_set [2022-07-20 01:35:15,642 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-20 01:35:15,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-20 01:35:15,642 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_3 [2022-07-20 01:35:15,642 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_3 [2022-07-20 01:35:15,642 INFO L130 BoogieDeclarations]: Found specification of procedure __bitrev8 [2022-07-20 01:35:15,642 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitrev8 [2022-07-20 01:35:15,643 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-07-20 01:35:15,643 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-07-20 01:35:15,643 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-20 01:35:15,643 INFO L130 BoogieDeclarations]: Found specification of procedure slic_init_driver [2022-07-20 01:35:15,643 INFO L138 BoogieDeclarations]: Found implementation of procedure slic_init_driver [2022-07-20 01:35:15,643 INFO L130 BoogieDeclarations]: Found specification of procedure is_multicast_ether_addr [2022-07-20 01:35:15,643 INFO L138 BoogieDeclarations]: Found implementation of procedure is_multicast_ether_addr [2022-07-20 01:35:15,644 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-20 01:35:15,644 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-20 01:35:15,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-20 01:35:15,644 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-07-20 01:35:15,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-07-20 01:35:15,644 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_equal [2022-07-20 01:35:15,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_equal [2022-07-20 01:35:15,645 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_3 [2022-07-20 01:35:15,645 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_3 [2022-07-20 01:35:15,645 INFO L130 BoogieDeclarations]: Found specification of procedure slic_cmdqmem_addpage [2022-07-20 01:35:15,645 INFO L138 BoogieDeclarations]: Found implementation of procedure slic_cmdqmem_addpage [2022-07-20 01:35:15,645 INFO L130 BoogieDeclarations]: Found specification of procedure slic_get_stats [2022-07-20 01:35:15,645 INFO L138 BoogieDeclarations]: Found implementation of procedure slic_get_stats [2022-07-20 01:35:15,645 INFO L130 BoogieDeclarations]: Found specification of procedure slic_cmdq_free [2022-07-20 01:35:15,645 INFO L138 BoogieDeclarations]: Found implementation of procedure slic_cmdq_free [2022-07-20 01:35:15,646 INFO L130 BoogieDeclarations]: Found specification of procedure slic_rcvqueue_free [2022-07-20 01:35:15,646 INFO L138 BoogieDeclarations]: Found implementation of procedure slic_rcvqueue_free [2022-07-20 01:35:15,646 INFO L130 BoogieDeclarations]: Found specification of procedure request_firmware [2022-07-20 01:35:15,646 INFO L138 BoogieDeclarations]: Found implementation of procedure request_firmware [2022-07-20 01:35:15,646 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-20 01:35:15,646 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-20 01:35:15,646 INFO L130 BoogieDeclarations]: Found specification of procedure slic_upr_request [2022-07-20 01:35:15,647 INFO L138 BoogieDeclarations]: Found implementation of procedure slic_upr_request [2022-07-20 01:35:15,647 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-07-20 01:35:15,647 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-07-20 01:35:15,647 INFO L130 BoogieDeclarations]: Found specification of procedure slic_adapter_freeresources [2022-07-20 01:35:15,647 INFO L138 BoogieDeclarations]: Found implementation of procedure slic_adapter_freeresources [2022-07-20 01:35:15,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-20 01:35:15,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-20 01:35:15,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-20 01:35:16,476 INFO L234 CfgBuilder]: Building ICFG [2022-07-20 01:35:16,479 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-20 01:35:17,251 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-20 01:35:23,810 INFO L275 CfgBuilder]: Performing block encoding [2022-07-20 01:35:23,830 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-20 01:35:23,831 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-07-20 01:35:23,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:35:23 BoogieIcfgContainer [2022-07-20 01:35:23,835 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-20 01:35:23,836 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-20 01:35:23,836 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-20 01:35:23,839 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-20 01:35:23,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 01:35:12" (1/3) ... [2022-07-20 01:35:23,840 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78de7822 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:35:23, skipping insertion in model container [2022-07-20 01:35:23,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:35:14" (2/3) ... [2022-07-20 01:35:23,840 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78de7822 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:35:23, skipping insertion in model container [2022-07-20 01:35:23,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:35:23" (3/3) ... [2022-07-20 01:35:23,842 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--staging--slicoss--slicoss.ko-entry_point.cil.out.i [2022-07-20 01:35:23,853 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-20 01:35:23,859 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-20 01:35:23,932 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-20 01:35:23,938 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@8d6f5b9, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@33eac288 [2022-07-20 01:35:23,938 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-20 01:35:23,946 INFO L276 IsEmpty]: Start isEmpty. Operand has 1732 states, 1297 states have (on average 1.4309946029298382) internal successors, (1856), 1359 states have internal predecessors, (1856), 359 states have call successors, (359), 80 states have call predecessors, (359), 79 states have return successors, (351), 335 states have call predecessors, (351), 351 states have call successors, (351) [2022-07-20 01:35:23,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-07-20 01:35:23,978 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:35:23,979 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, 1, 1] [2022-07-20 01:35:23,980 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:35:23,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:35:23,987 INFO L85 PathProgramCache]: Analyzing trace with hash -395369761, now seen corresponding path program 1 times [2022-07-20 01:35:23,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 01:35:23,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275030541] [2022-07-20 01:35:23,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:35:23,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 01:35:24,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:35:24,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 01:35:24,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:35:24,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:35:24,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:35:24,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:35:24,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:35:24,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 01:35:24,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:35:24,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:35:24,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:35:24,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:35:24,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:35:24,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 01:35:24,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:35:24,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:35:24,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:35:24,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:35:24,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:35:24,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 01:35:24,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:35:24,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:35:24,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:35:24,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:35:24,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:35:24,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-20 01:35:24,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:35:24,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:35:24,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:35:24,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-20 01:35:24,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:35:24,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:35:24,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:35:24,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-20 01:35:24,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:35:24,770 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-07-20 01:35:24,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 01:35:24,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275030541] [2022-07-20 01:35:24,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275030541] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:35:24,772 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:35:24,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-20 01:35:24,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440002344] [2022-07-20 01:35:24,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:35:24,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 01:35:24,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 01:35:24,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 01:35:24,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 01:35:24,806 INFO L87 Difference]: Start difference. First operand has 1732 states, 1297 states have (on average 1.4309946029298382) internal successors, (1856), 1359 states have internal predecessors, (1856), 359 states have call successors, (359), 80 states have call predecessors, (359), 79 states have return successors, (351), 335 states have call predecessors, (351), 351 states have call successors, (351) 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, (14), 5 states have call predecessors, (14), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-20 01:35:28,827 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:35:32,323 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:35:32,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:35:32,876 INFO L93 Difference]: Finished difference Result 3634 states and 5494 transitions. [2022-07-20 01:35:32,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 01:35:32,878 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, (14), 5 states have call predecessors, (14), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 119 [2022-07-20 01:35:32,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:35:32,907 INFO L225 Difference]: With dead ends: 3634 [2022-07-20 01:35:32,907 INFO L226 Difference]: Without dead ends: 1887 [2022-07-20 01:35:32,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-07-20 01:35:32,933 INFO L413 NwaCegarLoop]: 2317 mSDtfsCounter, 1753 mSDsluCounter, 1046 mSDsCounter, 0 mSdLazyCounter, 888 mSolverCounterSat, 1427 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1764 SdHoareTripleChecker+Valid, 3363 SdHoareTripleChecker+Invalid, 2317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1427 IncrementalHoareTripleChecker+Valid, 888 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-07-20 01:35:32,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1764 Valid, 3363 Invalid, 2317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1427 Valid, 888 Invalid, 2 Unknown, 0 Unchecked, 7.8s Time] [2022-07-20 01:35:32,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1887 states. [2022-07-20 01:35:33,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1887 to 1697. [2022-07-20 01:35:33,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1697 states, 1272 states have (on average 1.3915094339622642) internal successors, (1770), 1320 states have internal predecessors, (1770), 346 states have call successors, (346), 79 states have call predecessors, (346), 78 states have return successors, (345), 329 states have call predecessors, (345), 345 states have call successors, (345) [2022-07-20 01:35:33,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1697 states to 1697 states and 2461 transitions. [2022-07-20 01:35:33,098 INFO L78 Accepts]: Start accepts. Automaton has 1697 states and 2461 transitions. Word has length 119 [2022-07-20 01:35:33,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:35:33,098 INFO L495 AbstractCegarLoop]: Abstraction has 1697 states and 2461 transitions. [2022-07-20 01:35:33,099 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, (14), 5 states have call predecessors, (14), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-20 01:35:33,099 INFO L276 IsEmpty]: Start isEmpty. Operand 1697 states and 2461 transitions. [2022-07-20 01:35:33,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-07-20 01:35:33,107 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:35:33,108 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, 1] [2022-07-20 01:35:33,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-20 01:35:33,108 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:35:33,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:35:33,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1858104913, now seen corresponding path program 1 times [2022-07-20 01:35:33,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 01:35:33,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360452611] [2022-07-20 01:35:33,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:35:33,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 01:35:33,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:35:33,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 01:35:33,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:35:33,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:35:33,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:35:33,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:35:33,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:35:33,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 01:35:33,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:35:33,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:35:33,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:35:33,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:35:33,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:35:33,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 01:35:33,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:35:33,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:35:33,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:35:33,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:35:33,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:35:33,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 01:35:33,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:35:33,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:35:33,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:35:33,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:35:33,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:35:33,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-20 01:35:33,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:35:33,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:35:33,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:35:33,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-20 01:35:33,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:35:33,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:35:33,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:35:33,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-20 01:35:33,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:35:33,555 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-07-20 01:35:33,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 01:35:33,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360452611] [2022-07-20 01:35:33,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360452611] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:35:33,557 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:35:33,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 01:35:33,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698548781] [2022-07-20 01:35:33,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:35:33,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 01:35:33,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 01:35:33,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 01:35:33,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-20 01:35:33,560 INFO L87 Difference]: Start difference. First operand 1697 states and 2461 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-20 01:35:37,261 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:35:46,170 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:35:49,352 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:35:51,380 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:35:52,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:35:52,136 INFO L93 Difference]: Finished difference Result 4752 states and 6932 transitions. [2022-07-20 01:35:52,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 01:35:52,137 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 118 [2022-07-20 01:35:52,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:35:52,153 INFO L225 Difference]: With dead ends: 4752 [2022-07-20 01:35:52,153 INFO L226 Difference]: Without dead ends: 3077 [2022-07-20 01:35:52,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-20 01:35:52,160 INFO L413 NwaCegarLoop]: 2438 mSDtfsCounter, 3309 mSDsluCounter, 4308 mSDsCounter, 0 mSdLazyCounter, 3771 mSolverCounterSat, 1612 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3469 SdHoareTripleChecker+Valid, 6746 SdHoareTripleChecker+Invalid, 5387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1612 IncrementalHoareTripleChecker+Valid, 3771 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.3s IncrementalHoareTripleChecker+Time [2022-07-20 01:35:52,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3469 Valid, 6746 Invalid, 5387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1612 Valid, 3771 Invalid, 4 Unknown, 0 Unchecked, 18.3s Time] [2022-07-20 01:35:52,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3077 states. [2022-07-20 01:35:52,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3077 to 2764. [2022-07-20 01:35:52,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2764 states, 2085 states have (on average 1.392326139088729) internal successors, (2903), 2164 states have internal predecessors, (2903), 539 states have call successors, (539), 140 states have call predecessors, (539), 139 states have return successors, (538), 510 states have call predecessors, (538), 538 states have call successors, (538) [2022-07-20 01:35:52,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2764 states to 2764 states and 3980 transitions. [2022-07-20 01:35:52,279 INFO L78 Accepts]: Start accepts. Automaton has 2764 states and 3980 transitions. Word has length 118 [2022-07-20 01:35:52,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:35:52,282 INFO L495 AbstractCegarLoop]: Abstraction has 2764 states and 3980 transitions. [2022-07-20 01:35:52,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-20 01:35:52,285 INFO L276 IsEmpty]: Start isEmpty. Operand 2764 states and 3980 transitions. [2022-07-20 01:35:52,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-07-20 01:35:52,294 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:35:52,295 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:35:52,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-20 01:35:52,295 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:35:52,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:35:52,296 INFO L85 PathProgramCache]: Analyzing trace with hash 6289977, now seen corresponding path program 1 times [2022-07-20 01:35:52,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 01:35:52,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507695986] [2022-07-20 01:35:52,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:35:52,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 01:35:52,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:35:52,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 01:35:52,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:35:52,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:35:52,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:35:52,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:35:52,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:35:52,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 01:35:52,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:35:52,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:35:52,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:35:52,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:35:52,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:35:52,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 01:35:52,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:35:52,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:35:52,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:35:52,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:35:52,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:35:52,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 01:35:52,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:35:52,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:35:52,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:35:52,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:35:52,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:35:52,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-20 01:35:52,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:35:52,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:35:52,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:35:52,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-20 01:35:52,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:35:52,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:35:52,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:35:52,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-20 01:35:52,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:35:52,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-20 01:35:52,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:35:52,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:35:52,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:35:52,696 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-07-20 01:35:52,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 01:35:52,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507695986] [2022-07-20 01:35:52,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507695986] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:35:52,699 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:35:52,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-20 01:35:52,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199756991] [2022-07-20 01:35:52,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:35:52,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-20 01:35:52,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 01:35:52,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-20 01:35:52,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-20 01:35:52,702 INFO L87 Difference]: Start difference. First operand 2764 states and 3980 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-20 01:35:55,461 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:36:04,218 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:36:05,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:36:05,014 INFO L93 Difference]: Finished difference Result 8869 states and 12927 transitions. [2022-07-20 01:36:05,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-20 01:36:05,014 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 137 [2022-07-20 01:36:05,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:36:05,047 INFO L225 Difference]: With dead ends: 8869 [2022-07-20 01:36:05,047 INFO L226 Difference]: Without dead ends: 6127 [2022-07-20 01:36:05,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2022-07-20 01:36:05,064 INFO L413 NwaCegarLoop]: 2595 mSDtfsCounter, 5697 mSDsluCounter, 5964 mSDsCounter, 0 mSdLazyCounter, 4767 mSolverCounterSat, 3013 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5953 SdHoareTripleChecker+Valid, 8559 SdHoareTripleChecker+Invalid, 7782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3013 IncrementalHoareTripleChecker+Valid, 4767 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2022-07-20 01:36:05,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5953 Valid, 8559 Invalid, 7782 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3013 Valid, 4767 Invalid, 2 Unknown, 0 Unchecked, 11.9s Time] [2022-07-20 01:36:05,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6127 states. [2022-07-20 01:36:05,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6127 to 5513. [2022-07-20 01:36:05,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5513 states, 4163 states have (on average 1.3922651933701657) internal successors, (5796), 4321 states have internal predecessors, (5796), 1070 states have call successors, (1070), 280 states have call predecessors, (1070), 279 states have return successors, (1071), 1013 states have call predecessors, (1071), 1069 states have call successors, (1071) [2022-07-20 01:36:05,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5513 states to 5513 states and 7937 transitions. [2022-07-20 01:36:05,300 INFO L78 Accepts]: Start accepts. Automaton has 5513 states and 7937 transitions. Word has length 137 [2022-07-20 01:36:05,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:36:05,302 INFO L495 AbstractCegarLoop]: Abstraction has 5513 states and 7937 transitions. [2022-07-20 01:36:05,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-20 01:36:05,303 INFO L276 IsEmpty]: Start isEmpty. Operand 5513 states and 7937 transitions. [2022-07-20 01:36:05,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-07-20 01:36:05,306 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:36:05,306 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:36:05,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-20 01:36:05,307 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:36:05,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:36:05,307 INFO L85 PathProgramCache]: Analyzing trace with hash 1292495911, now seen corresponding path program 1 times [2022-07-20 01:36:05,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 01:36:05,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582753047] [2022-07-20 01:36:05,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:36:05,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 01:36:05,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:36:05,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 01:36:05,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:36:05,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:36:05,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:36:05,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:36:05,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:36:05,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 01:36:05,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:36:05,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:36:05,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:36:05,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:36:05,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:36:05,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 01:36:05,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:36:05,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:36:05,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:36:05,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:36:05,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:36:05,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 01:36:05,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:36:05,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:36:05,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:36:05,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:36:05,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:36:05,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-20 01:36:05,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:36:05,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:36:05,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:36:05,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-20 01:36:05,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:36:05,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:36:05,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:36:05,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-20 01:36:05,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:36:05,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-20 01:36:05,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:36:05,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:36:05,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:36:05,618 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-07-20 01:36:05,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 01:36:05,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582753047] [2022-07-20 01:36:05,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582753047] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:36:05,619 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:36:05,619 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-20 01:36:05,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472193293] [2022-07-20 01:36:05,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:36:05,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-20 01:36:05,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 01:36:05,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-20 01:36:05,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-20 01:36:05,621 INFO L87 Difference]: Start difference. First operand 5513 states and 7937 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 4 states have internal predecessors, (61), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-20 01:36:10,620 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:36:21,137 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:36:23,164 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:36:25,207 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:36:28,690 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:36:30,718 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:36:31,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:36:31,425 INFO L93 Difference]: Finished difference Result 17732 states and 25825 transitions. [2022-07-20 01:36:31,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-20 01:36:31,426 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 4 states have internal predecessors, (61), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 136 [2022-07-20 01:36:31,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:36:31,500 INFO L225 Difference]: With dead ends: 17732 [2022-07-20 01:36:31,500 INFO L226 Difference]: Without dead ends: 12241 [2022-07-20 01:36:31,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2022-07-20 01:36:31,531 INFO L413 NwaCegarLoop]: 2608 mSDtfsCounter, 4470 mSDsluCounter, 7851 mSDsCounter, 0 mSdLazyCounter, 6697 mSolverCounterSat, 2075 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4726 SdHoareTripleChecker+Valid, 10459 SdHoareTripleChecker+Invalid, 8778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2075 IncrementalHoareTripleChecker+Valid, 6697 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.2s IncrementalHoareTripleChecker+Time [2022-07-20 01:36:31,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4726 Valid, 10459 Invalid, 8778 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2075 Valid, 6697 Invalid, 6 Unknown, 0 Unchecked, 25.2s Time] [2022-07-20 01:36:31,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12241 states. [2022-07-20 01:36:31,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12241 to 11019. [2022-07-20 01:36:32,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11019 states, 8325 states have (on average 1.3914714714714715) internal successors, (11584), 8641 states have internal predecessors, (11584), 2132 states have call successors, (2132), 562 states have call predecessors, (2132), 561 states have return successors, (2139), 2019 states have call predecessors, (2139), 2131 states have call successors, (2139) [2022-07-20 01:36:32,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11019 states to 11019 states and 15855 transitions. [2022-07-20 01:36:32,058 INFO L78 Accepts]: Start accepts. Automaton has 11019 states and 15855 transitions. Word has length 136 [2022-07-20 01:36:32,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:36:32,058 INFO L495 AbstractCegarLoop]: Abstraction has 11019 states and 15855 transitions. [2022-07-20 01:36:32,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 4 states have internal predecessors, (61), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-20 01:36:32,059 INFO L276 IsEmpty]: Start isEmpty. Operand 11019 states and 15855 transitions. [2022-07-20 01:36:32,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-07-20 01:36:32,062 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:36:32,062 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:36:32,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-20 01:36:32,063 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:36:32,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:36:32,063 INFO L85 PathProgramCache]: Analyzing trace with hash 1255905380, now seen corresponding path program 1 times [2022-07-20 01:36:32,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 01:36:32,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198471841] [2022-07-20 01:36:32,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:36:32,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 01:36:32,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:36:32,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 01:36:32,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:36:32,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:36:32,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:36:32,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:36:32,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:36:32,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 01:36:32,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:36:32,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:36:32,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:36:32,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:36:32,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:36:32,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 01:36:32,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:36:32,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:36:32,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:36:32,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:36:32,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:36:32,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 01:36:32,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:36:32,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:36:32,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:36:32,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:36:32,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:36:32,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-20 01:36:32,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:36:32,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:36:32,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:36:32,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-20 01:36:32,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:36:32,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:36:32,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:36:32,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-20 01:36:32,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:36:32,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-20 01:36:32,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:36:32,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:36:32,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:36:32,369 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-07-20 01:36:32,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 01:36:32,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198471841] [2022-07-20 01:36:32,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198471841] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:36:32,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:36:32,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-20 01:36:32,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265916325] [2022-07-20 01:36:32,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:36:32,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-20 01:36:32,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 01:36:32,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-20 01:36:32,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-20 01:36:32,374 INFO L87 Difference]: Start difference. First operand 11019 states and 15855 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 4 states have internal predecessors, (59), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-20 01:36:35,689 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:36:39,657 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:36:48,727 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:36:50,765 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:36:52,811 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:36:54,842 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:36:55,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:36:55,488 INFO L93 Difference]: Finished difference Result 35474 states and 51613 transitions. [2022-07-20 01:36:55,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-20 01:36:55,489 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 4 states have internal predecessors, (59), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 134 [2022-07-20 01:36:55,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:36:55,622 INFO L225 Difference]: With dead ends: 35474 [2022-07-20 01:36:55,623 INFO L226 Difference]: Without dead ends: 24477 [2022-07-20 01:36:55,671 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2022-07-20 01:36:55,672 INFO L413 NwaCegarLoop]: 2695 mSDtfsCounter, 4592 mSDsluCounter, 7099 mSDsCounter, 0 mSdLazyCounter, 5866 mSolverCounterSat, 2093 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4844 SdHoareTripleChecker+Valid, 9794 SdHoareTripleChecker+Invalid, 7965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2093 IncrementalHoareTripleChecker+Valid, 5866 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.3s IncrementalHoareTripleChecker+Time [2022-07-20 01:36:55,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4844 Valid, 9794 Invalid, 7965 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2093 Valid, 5866 Invalid, 6 Unknown, 0 Unchecked, 22.3s Time] [2022-07-20 01:36:55,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24477 states. [2022-07-20 01:36:56,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24477 to 21959. [2022-07-20 01:36:56,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21959 states, 16589 states have (on average 1.3917656278256676) internal successors, (23088), 17245 states have internal predecessors, (23088), 4248 states have call successors, (4248), 1122 states have call predecessors, (4248), 1121 states have return successors, (4271), 3999 states have call predecessors, (4271), 4247 states have call successors, (4271) [2022-07-20 01:36:56,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21959 states to 21959 states and 31607 transitions. [2022-07-20 01:36:56,673 INFO L78 Accepts]: Start accepts. Automaton has 21959 states and 31607 transitions. Word has length 134 [2022-07-20 01:36:56,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:36:56,674 INFO L495 AbstractCegarLoop]: Abstraction has 21959 states and 31607 transitions. [2022-07-20 01:36:56,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 4 states have internal predecessors, (59), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-20 01:36:56,675 INFO L276 IsEmpty]: Start isEmpty. Operand 21959 states and 31607 transitions. [2022-07-20 01:36:56,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-07-20 01:36:56,678 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:36:56,678 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:36:56,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-20 01:36:56,678 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:36:56,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:36:56,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1567603350, now seen corresponding path program 1 times [2022-07-20 01:36:56,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 01:36:56,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994330786] [2022-07-20 01:36:56,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:36:56,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 01:36:56,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:36:56,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 01:36:56,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:36:56,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:36:56,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:36:56,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:36:56,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:36:56,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 01:36:56,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:36:56,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:36:56,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:36:56,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:36:56,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:36:56,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 01:36:56,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:36:56,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:36:56,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:36:56,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:36:56,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:36:56,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 01:36:56,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:36:57,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:36:57,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:36:57,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:36:57,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:36:57,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-20 01:36:57,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:36:57,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:36:57,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:36:57,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-20 01:36:57,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:36:57,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:36:57,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:36:57,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-20 01:36:57,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:36:57,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-20 01:36:57,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:36:57,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:36:57,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:36:57,065 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-07-20 01:36:57,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 01:36:57,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994330786] [2022-07-20 01:36:57,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994330786] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:36:57,066 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:36:57,066 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-20 01:36:57,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734838625] [2022-07-20 01:36:57,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:36:57,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-20 01:36:57,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 01:36:57,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-20 01:36:57,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-20 01:36:57,068 INFO L87 Difference]: Start difference. First operand 21959 states and 31607 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 4 states have internal predecessors, (60), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-20 01:36:59,827 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:37:06,645 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:37:09,694 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:37:11,288 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:37:12,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:37:12,294 INFO L93 Difference]: Finished difference Result 70263 states and 102205 transitions. [2022-07-20 01:37:12,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-20 01:37:12,296 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 4 states have internal predecessors, (60), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 135 [2022-07-20 01:37:12,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:37:12,620 INFO L225 Difference]: With dead ends: 70263 [2022-07-20 01:37:12,620 INFO L226 Difference]: Without dead ends: 48326 [2022-07-20 01:37:12,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2022-07-20 01:37:12,692 INFO L413 NwaCegarLoop]: 2596 mSDtfsCounter, 5688 mSDsluCounter, 5972 mSDsCounter, 0 mSdLazyCounter, 4762 mSolverCounterSat, 3015 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5946 SdHoareTripleChecker+Valid, 8568 SdHoareTripleChecker+Invalid, 7779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3015 IncrementalHoareTripleChecker+Valid, 4762 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.0s IncrementalHoareTripleChecker+Time [2022-07-20 01:37:12,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5946 Valid, 8568 Invalid, 7779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3015 Valid, 4762 Invalid, 2 Unknown, 0 Unchecked, 14.0s Time] [2022-07-20 01:37:12,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48326 states. [2022-07-20 01:37:14,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48326 to 43444. [2022-07-20 01:37:14,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43444 states, 32781 states have (on average 1.3899820017693176) internal successors, (45565), 34079 states have internal predecessors, (45565), 8426 states have call successors, (8426), 2237 states have call predecessors, (8426), 2236 states have return successors, (8489), 7937 states have call predecessors, (8489), 8425 states have call successors, (8489) [2022-07-20 01:37:14,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43444 states to 43444 states and 62480 transitions. [2022-07-20 01:37:14,695 INFO L78 Accepts]: Start accepts. Automaton has 43444 states and 62480 transitions. Word has length 135 [2022-07-20 01:37:14,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:37:14,696 INFO L495 AbstractCegarLoop]: Abstraction has 43444 states and 62480 transitions. [2022-07-20 01:37:14,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 4 states have internal predecessors, (60), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-20 01:37:14,696 INFO L276 IsEmpty]: Start isEmpty. Operand 43444 states and 62480 transitions. [2022-07-20 01:37:14,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-07-20 01:37:14,699 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:37:14,700 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, 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] [2022-07-20 01:37:14,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-20 01:37:14,700 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:37:14,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:37:14,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1446031472, now seen corresponding path program 1 times [2022-07-20 01:37:14,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 01:37:14,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99070154] [2022-07-20 01:37:14,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:37:14,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 01:37:14,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:14,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 01:37:14,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:14,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:37:14,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:14,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:37:14,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:14,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 01:37:14,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:14,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:37:14,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:14,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:37:14,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:14,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 01:37:14,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:14,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:37:14,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:14,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:37:14,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:14,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 01:37:14,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:14,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:37:14,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:14,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:37:14,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:14,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-20 01:37:14,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:14,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:37:14,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:14,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-20 01:37:14,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:14,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:37:14,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:15,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-20 01:37:15,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:15,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-20 01:37:15,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:15,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-20 01:37:15,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:15,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:37:15,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:15,074 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-07-20 01:37:15,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 01:37:15,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99070154] [2022-07-20 01:37:15,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99070154] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 01:37:15,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1571044120] [2022-07-20 01:37:15,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:37:15,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 01:37:15,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 01:37:15,080 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) [2022-07-20 01:37:15,084 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-20 01:37:16,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:16,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 2191 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-20 01:37:16,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:37:16,247 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-07-20 01:37:16,248 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:37:16,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1571044120] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:37:16,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 01:37:16,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16 [2022-07-20 01:37:16,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128378151] [2022-07-20 01:37:16,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:37:16,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-20 01:37:16,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 01:37:16,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-20 01:37:16,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-07-20 01:37:16,250 INFO L87 Difference]: Start difference. First operand 43444 states and 62480 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-20 01:37:18,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:37:18,041 INFO L93 Difference]: Finished difference Result 108704 states and 156292 transitions. [2022-07-20 01:37:18,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-20 01:37:18,041 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) Word has length 147 [2022-07-20 01:37:18,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:37:18,405 INFO L225 Difference]: With dead ends: 108704 [2022-07-20 01:37:18,405 INFO L226 Difference]: Without dead ends: 65282 [2022-07-20 01:37:18,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=426, Unknown=0, NotChecked=0, Total=506 [2022-07-20 01:37:18,541 INFO L413 NwaCegarLoop]: 3423 mSDtfsCounter, 2481 mSDsluCounter, 16113 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2485 SdHoareTripleChecker+Valid, 19536 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 01:37:18,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2485 Valid, 19536 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 01:37:18,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65282 states. [2022-07-20 01:37:20,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65282 to 64987. [2022-07-20 01:37:20,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64987 states, 49031 states have (on average 1.3901205359874365) internal successors, (68159), 50995 states have internal predecessors, (68159), 12596 states have call successors, (12596), 3344 states have call predecessors, (12596), 3359 states have return successors, (12739), 11859 states have call predecessors, (12739), 12595 states have call successors, (12739) [2022-07-20 01:37:20,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64987 states to 64987 states and 93494 transitions. [2022-07-20 01:37:20,786 INFO L78 Accepts]: Start accepts. Automaton has 64987 states and 93494 transitions. Word has length 147 [2022-07-20 01:37:20,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:37:20,787 INFO L495 AbstractCegarLoop]: Abstraction has 64987 states and 93494 transitions. [2022-07-20 01:37:20,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-20 01:37:20,789 INFO L276 IsEmpty]: Start isEmpty. Operand 64987 states and 93494 transitions. [2022-07-20 01:37:20,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-07-20 01:37:20,794 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:37:20,795 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, 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] [2022-07-20 01:37:20,826 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-20 01:37:21,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 01:37:21,024 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:37:21,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:37:21,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1401527363, now seen corresponding path program 1 times [2022-07-20 01:37:21,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 01:37:21,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125801794] [2022-07-20 01:37:21,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:37:21,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 01:37:21,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:21,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 01:37:21,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:21,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:37:21,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:21,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:37:21,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:21,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 01:37:21,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:21,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:37:21,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:21,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:37:21,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:21,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 01:37:21,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:21,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:37:21,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:21,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:37:21,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:21,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 01:37:21,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:21,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:37:21,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:21,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:37:21,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:21,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-20 01:37:21,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:21,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:37:21,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:21,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-20 01:37:21,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:21,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:37:21,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:21,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-20 01:37:21,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:21,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-20 01:37:21,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:21,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-20 01:37:21,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:21,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:37:21,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:21,981 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-07-20 01:37:21,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 01:37:21,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125801794] [2022-07-20 01:37:21,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125801794] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 01:37:21,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [481512737] [2022-07-20 01:37:21,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:37:21,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 01:37:21,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 01:37:21,984 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) [2022-07-20 01:37:21,986 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-20 01:37:22,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:22,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 2193 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-20 01:37:22,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:37:22,912 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-07-20 01:37:22,912 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:37:22,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [481512737] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:37:22,913 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 01:37:22,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 17 [2022-07-20 01:37:22,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517464687] [2022-07-20 01:37:22,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:37:22,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-20 01:37:22,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 01:37:22,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-20 01:37:22,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2022-07-20 01:37:22,915 INFO L87 Difference]: Start difference. First operand 64987 states and 93494 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-20 01:37:25,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:37:25,186 INFO L93 Difference]: Finished difference Result 151896 states and 218412 transitions. [2022-07-20 01:37:25,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-20 01:37:25,186 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) Word has length 148 [2022-07-20 01:37:25,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:37:25,697 INFO L225 Difference]: With dead ends: 151896 [2022-07-20 01:37:25,697 INFO L226 Difference]: Without dead ends: 86931 [2022-07-20 01:37:25,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=470, Unknown=0, NotChecked=0, Total=552 [2022-07-20 01:37:25,841 INFO L413 NwaCegarLoop]: 3573 mSDtfsCounter, 2481 mSDsluCounter, 16701 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2485 SdHoareTripleChecker+Valid, 20274 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 01:37:25,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2485 Valid, 20274 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 01:37:25,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86931 states. [2022-07-20 01:37:28,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86931 to 86594. [2022-07-20 01:37:28,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86594 states, 65321 states have (on average 1.3899511642503941) internal successors, (90793), 67983 states have internal predecessors, (90793), 16766 states have call successors, (16766), 4451 states have call predecessors, (16766), 4506 states have return successors, (17013), 15773 states have call predecessors, (17013), 16765 states have call successors, (17013) [2022-07-20 01:37:28,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86594 states to 86594 states and 124572 transitions. [2022-07-20 01:37:28,744 INFO L78 Accepts]: Start accepts. Automaton has 86594 states and 124572 transitions. Word has length 148 [2022-07-20 01:37:28,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:37:28,745 INFO L495 AbstractCegarLoop]: Abstraction has 86594 states and 124572 transitions. [2022-07-20 01:37:28,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-20 01:37:28,745 INFO L276 IsEmpty]: Start isEmpty. Operand 86594 states and 124572 transitions. [2022-07-20 01:37:28,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-07-20 01:37:28,751 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:37:28,751 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, 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] [2022-07-20 01:37:28,784 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-20 01:37:28,967 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,SelfDestructingSolverStorable7 [2022-07-20 01:37:28,967 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:37:28,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:37:28,968 INFO L85 PathProgramCache]: Analyzing trace with hash 498772759, now seen corresponding path program 1 times [2022-07-20 01:37:28,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 01:37:28,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896259938] [2022-07-20 01:37:28,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:37:28,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 01:37:29,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:29,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 01:37:29,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:29,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:37:29,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:29,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:37:29,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:29,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 01:37:29,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:29,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:37:29,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:29,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:37:29,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:29,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 01:37:29,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:29,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:37:29,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:29,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:37:29,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:29,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 01:37:29,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:29,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:37:29,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:29,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:37:29,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:29,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-20 01:37:29,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:29,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:37:29,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:29,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-20 01:37:29,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:29,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:37:29,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:29,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-20 01:37:29,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:29,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-20 01:37:29,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:29,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-20 01:37:29,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:29,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:37:29,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:29,351 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-07-20 01:37:29,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 01:37:29,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896259938] [2022-07-20 01:37:29,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896259938] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 01:37:29,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1956149448] [2022-07-20 01:37:29,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:37:29,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 01:37:29,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 01:37:29,354 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) [2022-07-20 01:37:29,355 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-20 01:37:30,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:30,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 2195 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-20 01:37:30,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:37:30,458 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-07-20 01:37:30,458 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:37:30,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1956149448] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:37:30,458 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 01:37:30,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 17 [2022-07-20 01:37:30,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23252413] [2022-07-20 01:37:30,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:37:30,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-20 01:37:30,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 01:37:30,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-20 01:37:30,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2022-07-20 01:37:30,460 INFO L87 Difference]: Start difference. First operand 86594 states and 124572 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-20 01:37:33,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:37:33,139 INFO L93 Difference]: Finished difference Result 195088 states and 280532 transitions. [2022-07-20 01:37:33,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-20 01:37:33,140 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) Word has length 149 [2022-07-20 01:37:33,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:37:33,621 INFO L225 Difference]: With dead ends: 195088 [2022-07-20 01:37:33,622 INFO L226 Difference]: Without dead ends: 108516 [2022-07-20 01:37:33,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=470, Unknown=0, NotChecked=0, Total=552 [2022-07-20 01:37:33,841 INFO L413 NwaCegarLoop]: 3637 mSDtfsCounter, 2481 mSDsluCounter, 16957 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2485 SdHoareTripleChecker+Valid, 20594 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 01:37:33,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2485 Valid, 20594 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 01:37:33,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108516 states. [2022-07-20 01:37:36,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108516 to 86638. [2022-07-20 01:37:36,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86638 states, 65353 states have (on average 1.3897602252383212) internal successors, (90825), 68019 states have internal predecessors, (90825), 16766 states have call successors, (16766), 4451 states have call predecessors, (16766), 4518 states have return successors, (17031), 15781 states have call predecessors, (17031), 16765 states have call successors, (17031) [2022-07-20 01:37:37,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86638 states to 86638 states and 124622 transitions. [2022-07-20 01:37:37,136 INFO L78 Accepts]: Start accepts. Automaton has 86638 states and 124622 transitions. Word has length 149 [2022-07-20 01:37:37,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:37:37,137 INFO L495 AbstractCegarLoop]: Abstraction has 86638 states and 124622 transitions. [2022-07-20 01:37:37,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-20 01:37:37,137 INFO L276 IsEmpty]: Start isEmpty. Operand 86638 states and 124622 transitions. [2022-07-20 01:37:37,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-07-20 01:37:37,144 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:37:37,144 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, 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] [2022-07-20 01:37:37,179 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-20 01:37:37,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 01:37:37,371 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:37:37,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:37:37,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1239943414, now seen corresponding path program 1 times [2022-07-20 01:37:37,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 01:37:37,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398648885] [2022-07-20 01:37:37,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:37:37,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 01:37:37,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:37,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 01:37:37,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:37,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:37:37,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:37,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:37:37,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:37,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 01:37:37,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:37,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:37:37,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:37,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:37:37,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:37,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 01:37:37,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:37,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:37:37,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:37,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:37:37,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:37,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 01:37:37,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:37,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:37:37,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:37,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:37:37,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:37,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-20 01:37:37,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:37,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:37:37,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:37,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-20 01:37:37,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:37,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:37:37,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:37,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-20 01:37:37,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:37,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-20 01:37:37,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:37,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-20 01:37:37,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:37,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:37:37,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:37,752 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-07-20 01:37:37,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 01:37:37,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398648885] [2022-07-20 01:37:37,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398648885] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 01:37:37,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1033541622] [2022-07-20 01:37:37,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:37:37,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 01:37:37,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 01:37:37,754 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) [2022-07-20 01:37:37,756 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-20 01:37:38,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:38,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 2197 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-20 01:37:38,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:37:38,648 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-07-20 01:37:38,649 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:37:38,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1033541622] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:37:38,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 01:37:38,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 17 [2022-07-20 01:37:38,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372660298] [2022-07-20 01:37:38,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:37:38,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-20 01:37:38,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 01:37:38,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-20 01:37:38,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2022-07-20 01:37:38,651 INFO L87 Difference]: Start difference. First operand 86638 states and 124622 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-20 01:37:41,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:37:41,383 INFO L93 Difference]: Finished difference Result 195148 states and 280598 transitions. [2022-07-20 01:37:41,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-20 01:37:41,383 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) Word has length 150 [2022-07-20 01:37:41,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:37:41,833 INFO L225 Difference]: With dead ends: 195148 [2022-07-20 01:37:41,833 INFO L226 Difference]: Without dead ends: 108532 [2022-07-20 01:37:42,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=470, Unknown=0, NotChecked=0, Total=552 [2022-07-20 01:37:42,059 INFO L413 NwaCegarLoop]: 3607 mSDtfsCounter, 2481 mSDsluCounter, 16837 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2485 SdHoareTripleChecker+Valid, 20444 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 01:37:42,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2485 Valid, 20444 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 01:37:42,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108532 states. [2022-07-20 01:37:44,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108532 to 86664. [2022-07-20 01:37:44,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86664 states, 65373 states have (on average 1.3896409832805592) internal successors, (90845), 68037 states have internal predecessors, (90845), 16766 states have call successors, (16766), 4451 states have call predecessors, (16766), 4524 states have return successors, (17037), 15789 states have call predecessors, (17037), 16765 states have call successors, (17037) [2022-07-20 01:37:45,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86664 states to 86664 states and 124648 transitions. [2022-07-20 01:37:45,022 INFO L78 Accepts]: Start accepts. Automaton has 86664 states and 124648 transitions. Word has length 150 [2022-07-20 01:37:45,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:37:45,023 INFO L495 AbstractCegarLoop]: Abstraction has 86664 states and 124648 transitions. [2022-07-20 01:37:45,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-20 01:37:45,023 INFO L276 IsEmpty]: Start isEmpty. Operand 86664 states and 124648 transitions. [2022-07-20 01:37:45,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-07-20 01:37:45,031 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:37:45,032 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2022-07-20 01:37:45,060 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-07-20 01:37:45,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 01:37:45,247 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:37:45,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:37:45,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1984849153, now seen corresponding path program 1 times [2022-07-20 01:37:45,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 01:37:45,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769949419] [2022-07-20 01:37:45,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:37:45,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 01:37:45,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:45,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 01:37:45,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:45,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:37:45,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:45,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:37:45,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:45,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 01:37:45,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:45,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:37:45,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:45,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:37:45,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:45,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 01:37:45,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:45,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:37:45,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:45,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:37:45,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:45,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 01:37:45,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:45,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:37:45,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:45,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:37:45,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:45,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-20 01:37:45,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:45,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:37:45,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:45,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-20 01:37:45,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:45,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:37:45,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:46,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-20 01:37:46,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:46,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-20 01:37:46,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:46,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-20 01:37:46,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:46,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-20 01:37:46,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:46,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:37:46,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:46,105 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 19 proven. 8 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-07-20 01:37:46,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 01:37:46,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769949419] [2022-07-20 01:37:46,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769949419] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 01:37:46,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1364808529] [2022-07-20 01:37:46,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:37:46,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 01:37:46,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 01:37:46,108 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) [2022-07-20 01:37:46,139 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-20 01:37:46,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:37:46,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 2312 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-20 01:37:46,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:37:47,163 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-07-20 01:37:47,164 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 01:37:47,456 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2022-07-20 01:37:47,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1364808529] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 01:37:47,456 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-20 01:37:47,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10, 10] total 23 [2022-07-20 01:37:47,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295472974] [2022-07-20 01:37:47,457 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-20 01:37:47,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-07-20 01:37:47,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 01:37:47,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-07-20 01:37:47,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2022-07-20 01:37:47,459 INFO L87 Difference]: Start difference. First operand 86664 states and 124648 transitions. Second operand has 23 states, 23 states have (on average 6.086956521739131) internal successors, (140), 15 states have internal predecessors, (140), 5 states have call successors, (33), 8 states have call predecessors, (33), 7 states have return successors, (26), 6 states have call predecessors, (26), 5 states have call successors, (26) [2022-07-20 01:37:55,363 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:38:26,165 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:38:39,828 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:38:41,871 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:38:48,377 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:39:00,427 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []