./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-validator-v0.8/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point_ldv-val-v0.8.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-validator-v0.8/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point_ldv-val-v0.8.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash d13c8fd602d503a5b89ef19dbfdd96987c0182e1babba89942a78b68f80ba8e9 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-17 02:16:50,512 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-17 02:16:50,514 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-17 02:16:50,540 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-17 02:16:50,540 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-17 02:16:50,541 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-17 02:16:50,542 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-17 02:16:50,543 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-17 02:16:50,544 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-17 02:16:50,545 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-17 02:16:50,550 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-17 02:16:50,551 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-17 02:16:50,551 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-17 02:16:50,552 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-17 02:16:50,553 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-17 02:16:50,554 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-17 02:16:50,554 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-17 02:16:50,555 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-17 02:16:50,557 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-17 02:16:50,558 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-17 02:16:50,560 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-17 02:16:50,565 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-17 02:16:50,566 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-17 02:16:50,566 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-17 02:16:50,569 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-17 02:16:50,569 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-17 02:16:50,569 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-17 02:16:50,570 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-17 02:16:50,570 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-17 02:16:50,571 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-17 02:16:50,571 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-17 02:16:50,572 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-17 02:16:50,572 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-17 02:16:50,573 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-17 02:16:50,574 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-17 02:16:50,574 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-17 02:16:50,575 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-17 02:16:50,575 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-17 02:16:50,575 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-17 02:16:50,576 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-17 02:16:50,576 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-17 02:16:50,578 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-17 02:16:50,592 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-17 02:16:50,592 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-17 02:16:50,592 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-17 02:16:50,592 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-17 02:16:50,593 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-17 02:16:50,593 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-17 02:16:50,593 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-17 02:16:50,594 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-17 02:16:50,594 INFO L138 SettingsManager]: * Use SBE=true [2021-11-17 02:16:50,594 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-17 02:16:50,594 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-17 02:16:50,594 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-17 02:16:50,594 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-17 02:16:50,594 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-17 02:16:50,594 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-17 02:16:50,595 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-17 02:16:50,595 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-17 02:16:50,595 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-17 02:16:50,595 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-17 02:16:50,595 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-17 02:16:50,595 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-17 02:16:50,596 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 02:16:50,596 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-17 02:16:50,596 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-17 02:16:50,596 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-17 02:16:50,596 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-17 02:16:50,596 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-17 02:16:50,596 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-17 02:16:50,597 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-17 02:16:50,597 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-17 02:16:50,597 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-17 02:16:50,597 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d13c8fd602d503a5b89ef19dbfdd96987c0182e1babba89942a78b68f80ba8e9 [2021-11-17 02:16:50,740 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-17 02:16:50,762 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-17 02:16:50,765 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-17 02:16:50,766 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-17 02:16:50,766 INFO L275 PluginConnector]: CDTParser initialized [2021-11-17 02:16:50,767 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.8/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-11-17 02:16:50,823 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6de3a2cc/dd8ef0f7ccc94768ac9e400bf67b8afa/FLAG876f063cd [2021-11-17 02:16:51,425 INFO L306 CDTParser]: Found 1 translation units. [2021-11-17 02:16:51,425 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-11-17 02:16:51,464 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6de3a2cc/dd8ef0f7ccc94768ac9e400bf67b8afa/FLAG876f063cd [2021-11-17 02:16:51,849 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6de3a2cc/dd8ef0f7ccc94768ac9e400bf67b8afa [2021-11-17 02:16:51,853 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-17 02:16:51,854 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-17 02:16:51,858 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-17 02:16:51,858 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-17 02:16:51,861 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-17 02:16:51,861 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 02:16:51" (1/1) ... [2021-11-17 02:16:51,863 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@346b662b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:16:51, skipping insertion in model container [2021-11-17 02:16:51,863 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 02:16:51" (1/1) ... [2021-11-17 02:16:51,868 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-17 02:16:51,990 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-17 02:16:53,710 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point_ldv-val-v0.8.cil.out.i[389398,389411] [2021-11-17 02:16:53,768 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 02:16:53,815 INFO L203 MainTranslator]: Completed pre-run [2021-11-17 02:16:54,133 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point_ldv-val-v0.8.cil.out.i[389398,389411] [2021-11-17 02:16:54,139 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 02:16:54,281 INFO L208 MainTranslator]: Completed translation [2021-11-17 02:16:54,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:16:54 WrapperNode [2021-11-17 02:16:54,283 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-17 02:16:54,284 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-17 02:16:54,284 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-17 02:16:54,284 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-17 02:16:54,288 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:16:54" (1/1) ... [2021-11-17 02:16:54,414 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:16:54" (1/1) ... [2021-11-17 02:16:54,596 INFO L137 Inliner]: procedures = 425, calls = 5273, calls flagged for inlining = 151, calls inlined = 134, statements flattened = 10105 [2021-11-17 02:16:54,596 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-17 02:16:54,597 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-17 02:16:54,597 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-17 02:16:54,597 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-17 02:16:54,603 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:16:54" (1/1) ... [2021-11-17 02:16:54,604 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:16:54" (1/1) ... [2021-11-17 02:16:54,648 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:16:54" (1/1) ... [2021-11-17 02:16:54,722 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:16:54" (1/1) ... [2021-11-17 02:16:54,880 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:16:54" (1/1) ... [2021-11-17 02:16:54,911 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:16:54" (1/1) ... [2021-11-17 02:16:54,935 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:16:54" (1/1) ... [2021-11-17 02:16:55,029 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-17 02:16:55,030 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-17 02:16:55,030 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-17 02:16:55,030 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-17 02:16:55,031 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:16:54" (1/1) ... [2021-11-17 02:16:55,035 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 02:16:55,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 02:16:55,052 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-17 02:16:55,080 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-17 02:16:55,091 INFO L130 BoogieDeclarations]: Found specification of procedure timer_open [2021-11-17 02:16:55,091 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_open [2021-11-17 02:16:55,091 INFO L130 BoogieDeclarations]: Found specification of procedure poll_def_tmr [2021-11-17 02:16:55,091 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_def_tmr [2021-11-17 02:16:55,092 INFO L130 BoogieDeclarations]: Found specification of procedure timer_event [2021-11-17 02:16:55,092 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_event [2021-11-17 02:16:55,092 INFO L130 BoogieDeclarations]: Found specification of procedure default_set_channels [2021-11-17 02:16:55,092 INFO L138 BoogieDeclarations]: Found implementation of procedure default_set_channels [2021-11-17 02:16:55,092 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-17 02:16:55,092 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-17 02:16:55,092 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-11-17 02:16:55,092 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-11-17 02:16:55,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-17 02:16:55,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-17 02:16:55,093 INFO L130 BoogieDeclarations]: Found specification of procedure dma_reset_output [2021-11-17 02:16:55,093 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_reset_output [2021-11-17 02:16:55,093 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~X~int~TO~int [2021-11-17 02:16:55,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~X~int~TO~int [2021-11-17 02:16:55,093 INFO L130 BoogieDeclarations]: Found specification of procedure seq_input_event [2021-11-17 02:16:55,093 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_input_event [2021-11-17 02:16:55,093 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_release [2021-11-17 02:16:55,093 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_release [2021-11-17 02:16:55,094 INFO L130 BoogieDeclarations]: Found specification of procedure local_start_dma [2021-11-17 02:16:55,094 INFO L138 BoogieDeclarations]: Found implementation of procedure local_start_dma [2021-11-17 02:16:55,094 INFO L130 BoogieDeclarations]: Found specification of procedure translate_bytes [2021-11-17 02:16:55,094 INFO L138 BoogieDeclarations]: Found implementation of procedure translate_bytes [2021-11-17 02:16:55,094 INFO L130 BoogieDeclarations]: Found specification of procedure __put_user_bad [2021-11-17 02:16:55,094 INFO L130 BoogieDeclarations]: Found specification of procedure seq_copy_to_input [2021-11-17 02:16:55,094 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_copy_to_input [2021-11-17 02:16:55,094 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-17 02:16:55,094 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-17 02:16:55,095 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_sync [2021-11-17 02:16:55,095 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_sync [2021-11-17 02:16:55,095 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~X~$Pointer$~TO~int [2021-11-17 02:16:55,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~X~$Pointer$~TO~int [2021-11-17 02:16:55,095 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_launch_output [2021-11-17 02:16:55,095 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_launch_output [2021-11-17 02:16:55,095 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-17 02:16:55,095 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-17 02:16:55,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_soundcard_mutex [2021-11-17 02:16:55,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_soundcard_mutex [2021-11-17 02:16:55,096 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-17 02:16:55,096 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-17 02:16:55,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-17 02:16:55,096 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_space_in_queue [2021-11-17 02:16:55,096 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_space_in_queue [2021-11-17 02:16:55,096 INFO L130 BoogieDeclarations]: Found specification of procedure timer_get_time [2021-11-17 02:16:55,096 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_get_time [2021-11-17 02:16:55,097 INFO L130 BoogieDeclarations]: Found specification of procedure enable_dma [2021-11-17 02:16:55,097 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_dma [2021-11-17 02:16:55,097 INFO L130 BoogieDeclarations]: Found specification of procedure timer_ioctl [2021-11-17 02:16:55,097 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_ioctl [2021-11-17 02:16:55,097 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-17 02:16:55,097 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-17 02:16:55,097 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-11-17 02:16:55,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-11-17 02:16:55,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-17 02:16:55,098 INFO L130 BoogieDeclarations]: Found specification of procedure sound_mixer_ioctl [2021-11-17 02:16:55,098 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_mixer_ioctl [2021-11-17 02:16:55,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-17 02:16:55,098 INFO L130 BoogieDeclarations]: Found specification of procedure midi_poll [2021-11-17 02:16:55,098 INFO L138 BoogieDeclarations]: Found implementation of procedure midi_poll [2021-11-17 02:16:55,098 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_arm [2021-11-17 02:16:55,098 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_arm [2021-11-17 02:16:55,098 INFO L130 BoogieDeclarations]: Found specification of procedure dma_subdivide [2021-11-17 02:16:55,098 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_subdivide [2021-11-17 02:16:55,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-17 02:16:55,099 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_activate_recording [2021-11-17 02:16:55,099 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_activate_recording [2021-11-17 02:16:55,099 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-17 02:16:55,099 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-17 02:16:55,099 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user [2021-11-17 02:16:55,099 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user [2021-11-17 02:16:55,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-17 02:16:55,099 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-17 02:16:55,100 INFO L130 BoogieDeclarations]: Found specification of procedure seq_sync [2021-11-17 02:16:55,100 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_sync [2021-11-17 02:16:55,100 INFO L130 BoogieDeclarations]: Found specification of procedure default_set_bits [2021-11-17 02:16:55,100 INFO L138 BoogieDeclarations]: Found implementation of procedure default_set_bits [2021-11-17 02:16:55,100 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_sound_special [2021-11-17 02:16:55,100 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_sound_special [2021-11-17 02:16:55,100 INFO L130 BoogieDeclarations]: Found specification of procedure close_dmap [2021-11-17 02:16:55,100 INFO L138 BoogieDeclarations]: Found implementation of procedure close_dmap [2021-11-17 02:16:55,100 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_close [2021-11-17 02:16:55,101 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_close [2021-11-17 02:16:55,101 INFO L130 BoogieDeclarations]: Found specification of procedure __get_user_bad [2021-11-17 02:16:55,101 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2021-11-17 02:16:55,101 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2021-11-17 02:16:55,101 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-11-17 02:16:55,101 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-11-17 02:16:55,101 INFO L130 BoogieDeclarations]: Found specification of procedure timer_arm [2021-11-17 02:16:55,101 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_arm [2021-11-17 02:16:55,101 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-11-17 02:16:55,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-11-17 02:16:55,102 INFO L130 BoogieDeclarations]: Found specification of procedure register_sound_special [2021-11-17 02:16:55,102 INFO L138 BoogieDeclarations]: Found implementation of procedure register_sound_special [2021-11-17 02:16:55,102 INFO L130 BoogieDeclarations]: Found specification of procedure sound_mmap [2021-11-17 02:16:55,102 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_mmap [2021-11-17 02:16:55,102 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_phys [2021-11-17 02:16:55,102 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_phys [2021-11-17 02:16:55,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-17 02:16:55,102 INFO L130 BoogieDeclarations]: Found specification of procedure claim_dma_lock [2021-11-17 02:16:55,103 INFO L138 BoogieDeclarations]: Found implementation of procedure claim_dma_lock [2021-11-17 02:16:55,103 INFO L130 BoogieDeclarations]: Found specification of procedure timer_close [2021-11-17 02:16:55,103 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_close [2021-11-17 02:16:55,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-17 02:16:55,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-17 02:16:55,103 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-17 02:16:55,103 INFO L130 BoogieDeclarations]: Found specification of procedure dma_reset_input [2021-11-17 02:16:55,103 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_reset_input [2021-11-17 02:16:55,103 INFO L130 BoogieDeclarations]: Found specification of procedure interruptible_sleep_on_timeout [2021-11-17 02:16:55,103 INFO L138 BoogieDeclarations]: Found implementation of procedure interruptible_sleep_on_timeout [2021-11-17 02:16:55,104 INFO L130 BoogieDeclarations]: Found specification of procedure set_format [2021-11-17 02:16:55,104 INFO L138 BoogieDeclarations]: Found implementation of procedure set_format [2021-11-17 02:16:55,104 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_reset [2021-11-17 02:16:55,104 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_reset [2021-11-17 02:16:55,104 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2021-11-17 02:16:55,104 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2021-11-17 02:16:55,104 INFO L130 BoogieDeclarations]: Found specification of procedure seq_reset [2021-11-17 02:16:55,104 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_reset [2021-11-17 02:16:55,105 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2021-11-17 02:16:55,105 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2021-11-17 02:16:55,105 INFO L130 BoogieDeclarations]: Found specification of procedure seq_drain_midi_queues [2021-11-17 02:16:55,105 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_drain_midi_queues [2021-11-17 02:16:55,105 INFO L130 BoogieDeclarations]: Found specification of procedure dma_ioctl [2021-11-17 02:16:55,105 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_ioctl [2021-11-17 02:16:55,105 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_soundcard_mutex [2021-11-17 02:16:55,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_soundcard_mutex [2021-11-17 02:16:55,105 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2021-11-17 02:16:55,106 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2021-11-17 02:16:55,106 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~X~int~X~int~TO~int [2021-11-17 02:16:55,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~X~int~X~int~TO~int [2021-11-17 02:16:55,106 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~VOID [2021-11-17 02:16:55,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~VOID [2021-11-17 02:16:55,106 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2021-11-17 02:16:55,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2021-11-17 02:16:55,106 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_dereference [2021-11-17 02:16:55,106 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_dereference [2021-11-17 02:16:55,107 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-11-17 02:16:55,107 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-11-17 02:16:55,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-17 02:16:55,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-17 02:16:55,107 INFO L130 BoogieDeclarations]: Found specification of procedure seq_startplay [2021-11-17 02:16:55,107 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_startplay [2021-11-17 02:16:55,107 INFO L130 BoogieDeclarations]: Found specification of procedure clear_dma_ff [2021-11-17 02:16:55,107 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_dma_ff [2021-11-17 02:16:55,107 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~X~int~TO~VOID [2021-11-17 02:16:55,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~X~int~TO~VOID [2021-11-17 02:16:55,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2021-11-17 02:16:55,108 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2021-11-17 02:16:55,108 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~X~$Pointer$~X~$Pointer$~TO~int [2021-11-17 02:16:55,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~X~$Pointer$~X~$Pointer$~TO~int [2021-11-17 02:16:55,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-17 02:16:55,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-17 02:16:55,108 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-17 02:16:55,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-17 02:16:55,108 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-17 02:16:55,108 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-17 02:16:55,109 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-17 02:16:55,109 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~TO~int [2021-11-17 02:16:55,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~TO~int [2021-11-17 02:16:55,109 INFO L130 BoogieDeclarations]: Found specification of procedure translate_mode [2021-11-17 02:16:55,109 INFO L138 BoogieDeclarations]: Found implementation of procedure translate_mode [2021-11-17 02:16:55,109 INFO L130 BoogieDeclarations]: Found specification of procedure try_module_get___0 [2021-11-17 02:16:55,109 INFO L138 BoogieDeclarations]: Found implementation of procedure try_module_get___0 [2021-11-17 02:16:55,109 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_move_wrpointer [2021-11-17 02:16:55,109 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_move_wrpointer [2021-11-17 02:16:55,109 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-17 02:16:55,110 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-17 02:16:55,110 INFO L130 BoogieDeclarations]: Found specification of procedure tmr_reset [2021-11-17 02:16:55,110 INFO L138 BoogieDeclarations]: Found implementation of procedure tmr_reset [2021-11-17 02:16:55,110 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-17 02:16:55,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-17 02:16:55,110 INFO L130 BoogieDeclarations]: Found specification of procedure sound_stop_timer [2021-11-17 02:16:55,110 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_stop_timer [2021-11-17 02:16:55,110 INFO L130 BoogieDeclarations]: Found specification of procedure tmr2ticks___0 [2021-11-17 02:16:55,110 INFO L138 BoogieDeclarations]: Found implementation of procedure tmr2ticks___0 [2021-11-17 02:16:55,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-17 02:16:55,111 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-17 02:16:55,111 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-17 02:16:55,111 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-17 02:16:55,111 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2021-11-17 02:16:55,111 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2021-11-17 02:16:55,111 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-11-17 02:16:55,111 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-11-17 02:16:55,111 INFO L130 BoogieDeclarations]: Found specification of procedure tmr_reset___0 [2021-11-17 02:16:55,111 INFO L138 BoogieDeclarations]: Found implementation of procedure tmr_reset___0 [2021-11-17 02:16:55,112 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~X~int~X~int~TO~VOID [2021-11-17 02:16:55,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~X~int~X~int~TO~VOID [2021-11-17 02:16:55,112 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2021-11-17 02:16:55,112 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2021-11-17 02:16:55,112 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held [2021-11-17 02:16:55,112 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held [2021-11-17 02:16:55,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-17 02:16:55,112 INFO L130 BoogieDeclarations]: Found specification of procedure sound_free_dmap [2021-11-17 02:16:55,112 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_free_dmap [2021-11-17 02:16:55,112 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2021-11-17 02:16:55,113 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2021-11-17 02:16:55,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-17 02:16:55,113 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-11-17 02:16:55,113 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-11-17 02:16:55,113 INFO L130 BoogieDeclarations]: Found specification of procedure reprogram_timer [2021-11-17 02:16:55,113 INFO L138 BoogieDeclarations]: Found implementation of procedure reprogram_timer [2021-11-17 02:16:55,113 INFO L130 BoogieDeclarations]: Found specification of procedure midi_outc___0 [2021-11-17 02:16:55,113 INFO L138 BoogieDeclarations]: Found implementation of procedure midi_outc___0 [2021-11-17 02:16:55,113 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2021-11-17 02:16:55,114 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2021-11-17 02:16:55,114 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~int [2021-11-17 02:16:55,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~int [2021-11-17 02:16:55,114 INFO L130 BoogieDeclarations]: Found specification of procedure dmabuf_timeout [2021-11-17 02:16:55,114 INFO L138 BoogieDeclarations]: Found implementation of procedure dmabuf_timeout [2021-11-17 02:16:55,114 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info___0 [2021-11-17 02:16:55,114 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info___0 [2021-11-17 02:16:55,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-17 02:16:55,114 INFO L130 BoogieDeclarations]: Found specification of procedure module_is_live [2021-11-17 02:16:55,114 INFO L138 BoogieDeclarations]: Found implementation of procedure module_is_live [2021-11-17 02:16:55,115 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-11-17 02:16:55,115 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-11-17 02:16:55,115 INFO L130 BoogieDeclarations]: Found specification of procedure sound_start_dma [2021-11-17 02:16:55,115 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_start_dma [2021-11-17 02:16:55,115 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_event [2021-11-17 02:16:55,115 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_event [2021-11-17 02:16:55,115 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-11-17 02:16:55,115 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-11-17 02:16:55,115 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-11-17 02:16:55,115 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-11-17 02:16:55,116 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_open [2021-11-17 02:16:55,116 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_open [2021-11-17 02:16:55,116 INFO L130 BoogieDeclarations]: Found specification of procedure do_midi_msg [2021-11-17 02:16:55,116 INFO L138 BoogieDeclarations]: Found implementation of procedure do_midi_msg [2021-11-17 02:16:55,116 INFO L130 BoogieDeclarations]: Found specification of procedure interruptible_sleep_on [2021-11-17 02:16:55,116 INFO L138 BoogieDeclarations]: Found implementation of procedure interruptible_sleep_on [2021-11-17 02:16:55,116 INFO L130 BoogieDeclarations]: Found specification of procedure waitqueue_active [2021-11-17 02:16:55,116 INFO L138 BoogieDeclarations]: Found implementation of procedure waitqueue_active [2021-11-17 02:16:55,116 INFO L130 BoogieDeclarations]: Found specification of procedure sound_alloc_dmap [2021-11-17 02:16:55,116 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_alloc_dmap [2021-11-17 02:16:55,117 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_fragment [2021-11-17 02:16:55,117 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_fragment [2021-11-17 02:16:55,117 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_get_time [2021-11-17 02:16:55,117 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_get_time [2021-11-17 02:16:55,117 INFO L130 BoogieDeclarations]: Found specification of procedure sequencer_timer [2021-11-17 02:16:55,117 INFO L138 BoogieDeclarations]: Found implementation of procedure sequencer_timer [2021-11-17 02:16:55,117 INFO L130 BoogieDeclarations]: Found specification of procedure default_set_speed [2021-11-17 02:16:55,117 INFO L138 BoogieDeclarations]: Found implementation of procedure default_set_speed [2021-11-17 02:16:55,117 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2021-11-17 02:16:55,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2021-11-17 02:16:55,118 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_residue [2021-11-17 02:16:55,118 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_residue [2021-11-17 02:16:55,118 INFO L130 BoogieDeclarations]: Found specification of procedure sync_output [2021-11-17 02:16:55,119 INFO L138 BoogieDeclarations]: Found implementation of procedure sync_output [2021-11-17 02:16:55,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-17 02:16:55,119 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-17 02:16:55,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-17 02:16:55,119 INFO L130 BoogieDeclarations]: Found specification of procedure copy_user_generic [2021-11-17 02:16:55,119 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_user_generic [2021-11-17 02:16:55,119 INFO L130 BoogieDeclarations]: Found specification of procedure open_dmap [2021-11-17 02:16:55,119 INFO L138 BoogieDeclarations]: Found implementation of procedure open_dmap [2021-11-17 02:16:55,120 INFO L130 BoogieDeclarations]: Found specification of procedure release_dma_lock [2021-11-17 02:16:55,120 INFO L138 BoogieDeclarations]: Found implementation of procedure release_dma_lock [2021-11-17 02:16:55,120 INFO L130 BoogieDeclarations]: Found specification of procedure vmalloc [2021-11-17 02:16:55,120 INFO L138 BoogieDeclarations]: Found implementation of procedure vmalloc [2021-11-17 02:16:55,120 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-11-17 02:16:55,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-11-17 02:16:55,120 INFO L130 BoogieDeclarations]: Found specification of procedure sound_poll [2021-11-17 02:16:55,120 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_poll [2021-11-17 02:16:55,120 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-11-17 02:16:55,120 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-11-17 02:16:55,121 INFO L130 BoogieDeclarations]: Found specification of procedure do_sequencer_timer [2021-11-17 02:16:55,121 INFO L138 BoogieDeclarations]: Found implementation of procedure do_sequencer_timer [2021-11-17 02:16:55,121 INFO L130 BoogieDeclarations]: Found specification of procedure disable_dma [2021-11-17 02:16:55,121 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_dma [2021-11-17 02:16:55,121 INFO L130 BoogieDeclarations]: Found specification of procedure tmr2ticks [2021-11-17 02:16:55,121 INFO L138 BoogieDeclarations]: Found implementation of procedure tmr2ticks [2021-11-17 02:16:55,121 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2021-11-17 02:16:55,121 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2021-11-17 02:16:55,121 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-11-17 02:16:55,121 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-11-17 02:16:55,122 INFO L130 BoogieDeclarations]: Found specification of procedure request_sound_timer [2021-11-17 02:16:55,122 INFO L138 BoogieDeclarations]: Found implementation of procedure request_sound_timer [2021-11-17 02:16:55,122 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_get_buffer_pointer [2021-11-17 02:16:55,122 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_get_buffer_pointer [2021-11-17 02:16:55,122 INFO L130 BoogieDeclarations]: Found specification of procedure sound_write [2021-11-17 02:16:55,122 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_write [2021-11-17 02:16:55,122 INFO L130 BoogieDeclarations]: Found specification of procedure play_event [2021-11-17 02:16:55,122 INFO L138 BoogieDeclarations]: Found implementation of procedure play_event [2021-11-17 02:16:55,122 INFO L130 BoogieDeclarations]: Found specification of procedure reorganize_buffers [2021-11-17 02:16:55,123 INFO L138 BoogieDeclarations]: Found implementation of procedure reorganize_buffers [2021-11-17 02:16:55,123 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-17 02:16:55,123 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-17 02:16:55,123 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-11-17 02:16:55,123 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-11-17 02:16:55,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-17 02:16:55,123 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_ioctl [2021-11-17 02:16:55,123 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_ioctl [2021-11-17 02:16:55,923 INFO L236 CfgBuilder]: Building ICFG [2021-11-17 02:16:55,932 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-17 02:16:56,409 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-17 02:16:56,473 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3834: assume 0 != ~tmp___1~2;#res := ~ret~3; [2021-11-17 02:16:56,473 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3834: assume !(0 != ~tmp___1~2);#res := ~ret~3; [2021-11-17 02:16:56,473 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3801: havoc #t~switch120; [2021-11-17 02:16:56,474 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3830: assume #t~switch120; [2021-11-17 02:16:56,474 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3830: assume !#t~switch120;#t~switch120 := true; [2021-11-17 02:16:56,474 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3822: assume 0 != ~tmp___0~8;#res := ~ret~3; [2021-11-17 02:16:56,474 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3822: assume !(0 != ~tmp___0~8);#res := ~ret~3; [2021-11-17 02:16:56,474 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3818: assume #t~switch120; [2021-11-17 02:16:56,474 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3818: assume !#t~switch120;#t~switch120 := #t~switch120 || 16 == ~size; [2021-11-17 02:16:56,474 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1: assume #t~switch120;#res := ~ret~3; [2021-11-17 02:16:56,474 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3814: assume #t~switch120;#res := ~ret~3; [2021-11-17 02:16:56,474 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3814: assume !#t~switch120;#t~switch120 := #t~switch120 || 10 == ~size; [2021-11-17 02:16:56,474 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2: assume !#t~switch120;#t~switch120 := #t~switch120 || 2 == ~size; [2021-11-17 02:16:56,474 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3810: assume #t~switch120;#res := ~ret~3; [2021-11-17 02:16:56,474 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3810: assume !#t~switch120;#t~switch120 := #t~switch120 || 8 == ~size; [2021-11-17 02:16:56,474 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3843-1: ~tmp___2~1 := #t~ret123;havoc #t~ret123;#res := (if ~tmp___2~1 % 18446744073709551616 % 4294967296 <= 2147483647 then ~tmp___2~1 % 18446744073709551616 % 4294967296 else ~tmp___2~1 % 18446744073709551616 % 4294967296 - 4294967296); [2021-11-17 02:16:56,474 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3843: SUMMARY for call #t~ret123 := copy_user_generic(~dst.base, ~dst.offset, ~src.base, ~src.offset, ~size); srcloc: null [2021-11-17 02:16:56,475 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3806: assume #t~switch120;#res := ~ret~3; [2021-11-17 02:16:56,475 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3806: assume !#t~switch120;#t~switch120 := #t~switch120 || 4 == ~size; [2021-11-17 02:16:56,475 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3833-1: assume -9223372036854775808 <= #t~ret122 && #t~ret122 <= 9223372036854775807;~tmp___1~2 := #t~ret122;havoc #t~ret122; [2021-11-17 02:16:56,475 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3833: SUMMARY for call #t~ret122 := ldv__builtin_expect((if 0 != ~ret~3 then 1 else 0), 0); srcloc: null [2021-11-17 02:16:56,475 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3821-1: assume -9223372036854775808 <= #t~ret121 && #t~ret121 <= 9223372036854775807;~tmp___0~8 := #t~ret121;havoc #t~ret121; [2021-11-17 02:16:56,475 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3821: SUMMARY for call #t~ret121 := ldv__builtin_expect((if 0 != ~ret~3 then 1 else 0), 0); srcloc: null [2021-11-17 02:16:56,475 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3842: assume #t~switch120; [2021-11-17 02:16:56,475 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3842: assume !#t~switch120; [2021-11-17 02:17:04,160 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3736: havoc __copy_from_user_#t~switch115#1; [2021-11-17 02:17:04,160 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3742: assume __copy_from_user_#t~switch115#1;__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2021-11-17 02:17:04,161 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3742: assume !__copy_from_user_#t~switch115#1;__copy_from_user_#t~switch115#1 := __copy_from_user_#t~switch115#1 || 4 == __copy_from_user_~size#1; [2021-11-17 02:17:04,161 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3747: assume __copy_from_user_#t~switch115#1;__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2021-11-17 02:17:04,161 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3747: assume !__copy_from_user_#t~switch115#1;__copy_from_user_#t~switch115#1 := __copy_from_user_#t~switch115#1 || 8 == __copy_from_user_~size#1; [2021-11-17 02:17:04,161 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3752: assume __copy_from_user_#t~switch115#1;__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2021-11-17 02:17:04,161 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3752: assume !__copy_from_user_#t~switch115#1;__copy_from_user_#t~switch115#1 := __copy_from_user_#t~switch115#1 || 10 == __copy_from_user_~size#1; [2021-11-17 02:17:04,161 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3757: assume __copy_from_user_#t~switch115#1; [2021-11-17 02:17:04,161 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3757: assume !__copy_from_user_#t~switch115#1;__copy_from_user_#t~switch115#1 := __copy_from_user_#t~switch115#1 || 16 == __copy_from_user_~size#1; [2021-11-17 02:17:04,161 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3761-1: assume -9223372036854775808 <= __copy_from_user_#t~ret116#1 && __copy_from_user_#t~ret116#1 <= 9223372036854775807;__copy_from_user_~tmp___0~7#1 := __copy_from_user_#t~ret116#1;havoc __copy_from_user_#t~ret116#1; [2021-11-17 02:17:04,161 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3761: SUMMARY for call __copy_from_user_#t~ret116#1 := ldv__builtin_expect((if 0 != __copy_from_user_~ret~2#1 then 1 else 0), 0); srcloc: null [2021-11-17 02:17:04,161 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3762: assume 0 != __copy_from_user_~tmp___0~7#1;__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2021-11-17 02:17:04,161 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3762: assume !(0 != __copy_from_user_~tmp___0~7#1);__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2021-11-17 02:17:04,161 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3770: assume __copy_from_user_#t~switch115#1; [2021-11-17 02:17:04,161 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3770: assume !__copy_from_user_#t~switch115#1;__copy_from_user_#t~switch115#1 := true; [2021-11-17 02:17:04,161 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3774: SUMMARY for call __copy_from_user_#t~ret117#1 := ldv__builtin_expect((if 0 != __copy_from_user_~ret~2#1 then 1 else 0), 0); srcloc: null [2021-11-17 02:17:04,161 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3774-1: assume -9223372036854775808 <= __copy_from_user_#t~ret117#1 && __copy_from_user_#t~ret117#1 <= 9223372036854775807;__copy_from_user_~tmp___1~1#1 := __copy_from_user_#t~ret117#1;havoc __copy_from_user_#t~ret117#1; [2021-11-17 02:17:04,161 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3775: assume 0 != __copy_from_user_~tmp___1~1#1;__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2021-11-17 02:17:04,162 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3775: assume !(0 != __copy_from_user_~tmp___1~1#1);__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2021-11-17 02:17:04,162 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3783: assume __copy_from_user_#t~switch115#1; [2021-11-17 02:17:04,162 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3783: assume !__copy_from_user_#t~switch115#1; [2021-11-17 02:17:04,162 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3784: SUMMARY for call __copy_from_user_#t~ret118#1 := copy_user_generic(__copy_from_user_~dst#1.base, __copy_from_user_~dst#1.offset, __copy_from_user_~src#1.base, __copy_from_user_~src#1.offset, __copy_from_user_~size#1); srcloc: null [2021-11-17 02:17:04,162 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3784-1: __copy_from_user_~tmp___2~0#1 := __copy_from_user_#t~ret118#1;havoc __copy_from_user_#t~ret118#1;__copy_from_user_#res#1 := (if __copy_from_user_~tmp___2~0#1 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_from_user_~tmp___2~0#1 % 18446744073709551616 % 4294967296 else __copy_from_user_~tmp___2~0#1 % 18446744073709551616 % 4294967296 - 4294967296); [2021-11-17 02:17:04,162 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##704: assume !__copy_from_user_#t~switch115#1;__copy_from_user_#t~switch115#1 := __copy_from_user_#t~switch115#1 || 2 == __copy_from_user_~size#1; [2021-11-17 02:17:04,162 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##703: assume __copy_from_user_#t~switch115#1;__copy_from_user_#res#1 := __copy_from_user_~ret~2#1; [2021-11-17 02:17:04,229 INFO L277 CfgBuilder]: Performing block encoding [2021-11-17 02:17:04,259 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-17 02:17:04,259 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-17 02:17:04,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 02:17:04 BoogieIcfgContainer [2021-11-17 02:17:04,264 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-17 02:17:04,267 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-17 02:17:04,267 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-17 02:17:04,269 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-17 02:17:04,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 02:16:51" (1/3) ... [2021-11-17 02:17:04,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eacc46a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 02:17:04, skipping insertion in model container [2021-11-17 02:17:04,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:16:54" (2/3) ... [2021-11-17 02:17:04,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eacc46a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 02:17:04, skipping insertion in model container [2021-11-17 02:17:04,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 02:17:04" (3/3) ... [2021-11-17 02:17:04,273 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-11-17 02:17:04,276 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-17 02:17:04,276 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-17 02:17:04,330 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-17 02:17:04,337 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-17 02:17:04,338 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-17 02:17:04,401 INFO L276 IsEmpty]: Start isEmpty. Operand has 3838 states, 2919 states have (on average 1.5022267899965742) internal successors, (4385), 3023 states have internal predecessors, (4385), 781 states have call successors, (781), 137 states have call predecessors, (781), 136 states have return successors, (773), 745 states have call predecessors, (773), 773 states have call successors, (773) [2021-11-17 02:17:04,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2021-11-17 02:17:04,417 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:17:04,418 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 02:17:04,418 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:17:04,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:17:04,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1391587723, now seen corresponding path program 1 times [2021-11-17 02:17:04,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 02:17:04,428 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766052711] [2021-11-17 02:17:04,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:17:04,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 02:17:04,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:04,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:17:04,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:04,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:04,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:04,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:04,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:04,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 02:17:04,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:04,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:04,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:04,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:04,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:04,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 02:17:04,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:05,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:05,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:05,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:05,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:05,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 02:17:05,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:05,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:05,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:05,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:05,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:05,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 02:17:05,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:05,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:05,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:05,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:05,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:05,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 02:17:05,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:05,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:05,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:05,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:05,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:05,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-17 02:17:05,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:05,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:05,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:05,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 02:17:05,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:05,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:05,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:05,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 02:17:05,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:05,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:05,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:05,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-17 02:17:05,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:05,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:05,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:05,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 02:17:05,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:05,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:05,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:05,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 02:17:05,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:05,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:05,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:05,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-17 02:17:05,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:05,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:05,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:05,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-17 02:17:05,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:05,212 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2021-11-17 02:17:05,212 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 02:17:05,213 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766052711] [2021-11-17 02:17:05,213 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766052711] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 02:17:05,213 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 02:17:05,213 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 02:17:05,215 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934348606] [2021-11-17 02:17:05,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 02:17:05,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 02:17:05,218 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 02:17:05,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 02:17:05,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 02:17:05,240 INFO L87 Difference]: Start difference. First operand has 3838 states, 2919 states have (on average 1.5022267899965742) internal successors, (4385), 3023 states have internal predecessors, (4385), 781 states have call successors, (781), 137 states have call predecessors, (781), 136 states have return successors, (773), 745 states have call predecessors, (773), 773 states have call successors, (773) Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-17 02:17:07,299 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:17:09,359 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:17:11,414 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:17:22,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:17:22,654 INFO L93 Difference]: Finished difference Result 8367 states and 13217 transitions. [2021-11-17 02:17:22,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-17 02:17:22,676 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 192 [2021-11-17 02:17:22,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:17:22,720 INFO L225 Difference]: With dead ends: 8367 [2021-11-17 02:17:22,721 INFO L226 Difference]: Without dead ends: 4519 [2021-11-17 02:17:22,738 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-17 02:17:22,741 INFO L933 BasicCegarLoop]: 5471 mSDtfsCounter, 3639 mSDsluCounter, 7456 mSDsCounter, 0 mSdLazyCounter, 4583 mSolverCounterSat, 2307 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3690 SdHoareTripleChecker+Valid, 12927 SdHoareTripleChecker+Invalid, 6893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2307 IncrementalHoareTripleChecker+Valid, 4583 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.0s IncrementalHoareTripleChecker+Time [2021-11-17 02:17:22,742 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3690 Valid, 12927 Invalid, 6893 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2307 Valid, 4583 Invalid, 3 Unknown, 0 Unchecked, 17.0s Time] [2021-11-17 02:17:22,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4519 states. [2021-11-17 02:17:22,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4519 to 3823. [2021-11-17 02:17:22,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3823 states, 2914 states have (on average 1.4989704873026768) internal successors, (4368), 3008 states have internal predecessors, (4368), 773 states have call successors, (773), 136 states have call predecessors, (773), 135 states have return successors, (769), 741 states have call predecessors, (769), 769 states have call successors, (769) [2021-11-17 02:17:22,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3823 states to 3823 states and 5910 transitions. [2021-11-17 02:17:22,960 INFO L78 Accepts]: Start accepts. Automaton has 3823 states and 5910 transitions. Word has length 192 [2021-11-17 02:17:22,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:17:22,961 INFO L470 AbstractCegarLoop]: Abstraction has 3823 states and 5910 transitions. [2021-11-17 02:17:22,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-17 02:17:22,961 INFO L276 IsEmpty]: Start isEmpty. Operand 3823 states and 5910 transitions. [2021-11-17 02:17:22,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2021-11-17 02:17:22,966 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:17:22,966 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 02:17:22,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-17 02:17:22,966 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:17:22,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:17:22,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1053851753, now seen corresponding path program 1 times [2021-11-17 02:17:22,967 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 02:17:22,967 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435410655] [2021-11-17 02:17:22,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:17:22,968 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 02:17:23,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:23,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:17:23,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:23,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:23,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:23,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:23,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:23,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 02:17:23,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:23,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:23,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:23,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:23,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:23,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 02:17:23,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:23,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:23,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:23,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:23,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:23,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 02:17:23,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:23,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:23,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:23,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:23,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:23,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 02:17:23,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:23,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:23,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:23,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:23,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:23,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 02:17:23,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:23,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:23,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:23,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:23,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:23,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-17 02:17:23,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:23,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:23,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:23,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 02:17:23,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:23,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:23,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:23,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 02:17:23,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:23,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:23,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:23,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-17 02:17:23,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:23,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:23,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:23,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 02:17:23,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:23,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:23,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:23,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 02:17:23,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:23,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:23,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:23,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-17 02:17:23,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:23,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:23,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:23,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-17 02:17:23,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:23,399 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2021-11-17 02:17:23,402 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 02:17:23,402 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435410655] [2021-11-17 02:17:23,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435410655] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 02:17:23,402 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 02:17:23,402 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 02:17:23,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743774716] [2021-11-17 02:17:23,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 02:17:23,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 02:17:23,404 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 02:17:23,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 02:17:23,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 02:17:23,405 INFO L87 Difference]: Start difference. First operand 3823 states and 5910 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-17 02:17:25,450 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:17:32,831 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:17:35,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:17:35,508 INFO L93 Difference]: Finished difference Result 9651 states and 15121 transitions. [2021-11-17 02:17:35,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 02:17:35,509 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 192 [2021-11-17 02:17:35,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:17:35,539 INFO L225 Difference]: With dead ends: 9651 [2021-11-17 02:17:35,539 INFO L226 Difference]: Without dead ends: 5857 [2021-11-17 02:17:35,555 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-17 02:17:35,556 INFO L933 BasicCegarLoop]: 5660 mSDtfsCounter, 9663 mSDsluCounter, 7683 mSDsCounter, 0 mSdLazyCounter, 3698 mSolverCounterSat, 4659 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9828 SdHoareTripleChecker+Valid, 13343 SdHoareTripleChecker+Invalid, 8358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4659 IncrementalHoareTripleChecker+Valid, 3698 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2021-11-17 02:17:35,557 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9828 Valid, 13343 Invalid, 8358 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4659 Valid, 3698 Invalid, 1 Unknown, 0 Unchecked, 11.6s Time] [2021-11-17 02:17:35,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5857 states. [2021-11-17 02:17:35,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5857 to 4938. [2021-11-17 02:17:35,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4938 states, 3763 states have (on average 1.495083709806006) internal successors, (5626), 3894 states have internal predecessors, (5626), 979 states have call successors, (979), 196 states have call predecessors, (979), 195 states have return successors, (975), 931 states have call predecessors, (975), 975 states have call successors, (975) [2021-11-17 02:17:35,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4938 states to 4938 states and 7580 transitions. [2021-11-17 02:17:35,789 INFO L78 Accepts]: Start accepts. Automaton has 4938 states and 7580 transitions. Word has length 192 [2021-11-17 02:17:35,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:17:35,791 INFO L470 AbstractCegarLoop]: Abstraction has 4938 states and 7580 transitions. [2021-11-17 02:17:35,791 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-17 02:17:35,791 INFO L276 IsEmpty]: Start isEmpty. Operand 4938 states and 7580 transitions. [2021-11-17 02:17:35,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2021-11-17 02:17:35,793 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:17:35,793 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 02:17:35,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-17 02:17:35,795 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:17:35,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:17:35,795 INFO L85 PathProgramCache]: Analyzing trace with hash 1833513696, now seen corresponding path program 1 times [2021-11-17 02:17:35,795 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 02:17:35,797 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866178288] [2021-11-17 02:17:35,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:17:35,797 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 02:17:35,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:36,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:17:36,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:36,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:36,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:36,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:36,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:36,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 02:17:36,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:36,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:36,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:36,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:36,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:36,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 02:17:36,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:36,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:36,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:36,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:36,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:36,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 02:17:36,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:36,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:36,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:36,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:36,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:36,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 02:17:36,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:36,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:36,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:36,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:36,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:36,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 02:17:36,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:36,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:36,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:36,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:36,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:36,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-17 02:17:36,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:36,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:36,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:36,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 02:17:36,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:36,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:36,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:36,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 02:17:36,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:36,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:36,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:36,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-17 02:17:36,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:36,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:36,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:36,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 02:17:36,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:36,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:36,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:36,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 02:17:36,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:36,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:36,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:36,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-17 02:17:36,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:36,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:36,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:36,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-17 02:17:36,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:36,204 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2021-11-17 02:17:36,205 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 02:17:36,205 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866178288] [2021-11-17 02:17:36,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866178288] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 02:17:36,205 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 02:17:36,205 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 02:17:36,205 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160977240] [2021-11-17 02:17:36,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 02:17:36,206 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 02:17:36,206 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 02:17:36,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 02:17:36,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 02:17:36,207 INFO L87 Difference]: Start difference. First operand 4938 states and 7580 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-11-17 02:17:38,253 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:17:40,314 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:17:47,045 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:17:49,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:17:49,627 INFO L93 Difference]: Finished difference Result 10758 states and 16782 transitions. [2021-11-17 02:17:49,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 02:17:49,628 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 202 [2021-11-17 02:17:49,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:17:49,652 INFO L225 Difference]: With dead ends: 10758 [2021-11-17 02:17:49,653 INFO L226 Difference]: Without dead ends: 5849 [2021-11-17 02:17:49,668 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-17 02:17:49,672 INFO L933 BasicCegarLoop]: 5419 mSDtfsCounter, 9790 mSDsluCounter, 5014 mSDsCounter, 0 mSdLazyCounter, 3327 mSolverCounterSat, 3161 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10287 SdHoareTripleChecker+Valid, 10433 SdHoareTripleChecker+Invalid, 6490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3161 IncrementalHoareTripleChecker+Valid, 3327 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2021-11-17 02:17:49,673 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10287 Valid, 10433 Invalid, 6490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3161 Valid, 3327 Invalid, 2 Unknown, 0 Unchecked, 13.1s Time] [2021-11-17 02:17:49,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5849 states. [2021-11-17 02:17:49,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5849 to 4938. [2021-11-17 02:17:49,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4938 states, 3763 states have (on average 1.4945522189742226) internal successors, (5624), 3894 states have internal predecessors, (5624), 979 states have call successors, (979), 196 states have call predecessors, (979), 195 states have return successors, (975), 931 states have call predecessors, (975), 975 states have call successors, (975) [2021-11-17 02:17:49,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4938 states to 4938 states and 7578 transitions. [2021-11-17 02:17:49,820 INFO L78 Accepts]: Start accepts. Automaton has 4938 states and 7578 transitions. Word has length 202 [2021-11-17 02:17:49,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:17:49,821 INFO L470 AbstractCegarLoop]: Abstraction has 4938 states and 7578 transitions. [2021-11-17 02:17:49,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-11-17 02:17:49,822 INFO L276 IsEmpty]: Start isEmpty. Operand 4938 states and 7578 transitions. [2021-11-17 02:17:49,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2021-11-17 02:17:49,824 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:17:49,824 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 02:17:49,824 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-17 02:17:49,824 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:17:49,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:17:49,825 INFO L85 PathProgramCache]: Analyzing trace with hash 245165794, now seen corresponding path program 1 times [2021-11-17 02:17:49,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 02:17:49,825 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029221132] [2021-11-17 02:17:49,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:17:49,826 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 02:17:49,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:49,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:17:50,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:50,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:50,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:50,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:50,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:50,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 02:17:50,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:50,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:50,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:50,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:50,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:50,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 02:17:50,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:50,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:50,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:50,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:50,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:50,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 02:17:50,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:50,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:50,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:50,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:50,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:50,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 02:17:50,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:50,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:50,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:50,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:50,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:50,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 02:17:50,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:50,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:50,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:50,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:17:50,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:50,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-17 02:17:50,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:50,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:50,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:50,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 02:17:50,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:50,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:50,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:50,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 02:17:50,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:50,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:50,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:50,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-17 02:17:50,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:50,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:50,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:50,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 02:17:50,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:50,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:50,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:50,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 02:17:50,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:50,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:50,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:50,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-17 02:17:50,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:50,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:17:50,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:50,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-17 02:17:50,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:17:50,165 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2021-11-17 02:17:50,166 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 02:17:50,166 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029221132] [2021-11-17 02:17:50,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029221132] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 02:17:50,166 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 02:17:50,166 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 02:17:50,166 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890923519] [2021-11-17 02:17:50,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 02:17:50,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 02:17:50,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 02:17:50,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 02:17:50,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 02:17:50,168 INFO L87 Difference]: Start difference. First operand 4938 states and 7578 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-17 02:17:52,245 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:18:04,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:18:04,350 INFO L93 Difference]: Finished difference Result 5851 states and 9243 transitions. [2021-11-17 02:18:04,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 02:18:04,350 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 202 [2021-11-17 02:18:04,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:18:04,392 INFO L225 Difference]: With dead ends: 5851 [2021-11-17 02:18:04,392 INFO L226 Difference]: Without dead ends: 5848 [2021-11-17 02:18:04,394 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-17 02:18:04,394 INFO L933 BasicCegarLoop]: 5415 mSDtfsCounter, 9333 mSDsluCounter, 7409 mSDsCounter, 0 mSdLazyCounter, 4608 mSolverCounterSat, 3039 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9832 SdHoareTripleChecker+Valid, 12824 SdHoareTripleChecker+Invalid, 7648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3039 IncrementalHoareTripleChecker+Valid, 4608 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time [2021-11-17 02:18:04,395 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9832 Valid, 12824 Invalid, 7648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3039 Valid, 4608 Invalid, 1 Unknown, 0 Unchecked, 13.9s Time] [2021-11-17 02:18:04,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5848 states. [2021-11-17 02:18:04,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5848 to 4937. [2021-11-17 02:18:04,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4937 states, 3763 states have (on average 1.4942864735583312) internal successors, (5623), 3893 states have internal predecessors, (5623), 978 states have call successors, (978), 196 states have call predecessors, (978), 195 states have return successors, (975), 931 states have call predecessors, (975), 975 states have call successors, (975) [2021-11-17 02:18:04,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4937 states to 4937 states and 7576 transitions. [2021-11-17 02:18:04,522 INFO L78 Accepts]: Start accepts. Automaton has 4937 states and 7576 transitions. Word has length 202 [2021-11-17 02:18:04,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:18:04,525 INFO L470 AbstractCegarLoop]: Abstraction has 4937 states and 7576 transitions. [2021-11-17 02:18:04,525 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-17 02:18:04,525 INFO L276 IsEmpty]: Start isEmpty. Operand 4937 states and 7576 transitions. [2021-11-17 02:18:04,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2021-11-17 02:18:04,527 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:18:04,528 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 02:18:04,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-17 02:18:04,528 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:18:04,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:18:04,528 INFO L85 PathProgramCache]: Analyzing trace with hash -990907888, now seen corresponding path program 1 times [2021-11-17 02:18:04,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 02:18:04,529 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43500090] [2021-11-17 02:18:04,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:18:04,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 02:18:04,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:18:04,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:04,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:04,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 02:18:04,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:04,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:04,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 02:18:04,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:04,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:04,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 02:18:04,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:04,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:04,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 02:18:04,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:04,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:04,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 02:18:04,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:04,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:04,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-17 02:18:04,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:04,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 02:18:04,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:04,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 02:18:04,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:04,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-17 02:18:04,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:04,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 02:18:04,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:04,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 02:18:04,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:04,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-17 02:18:04,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:04,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-17 02:18:04,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:04,850 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2021-11-17 02:18:04,850 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 02:18:04,850 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43500090] [2021-11-17 02:18:04,850 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43500090] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 02:18:04,851 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 02:18:04,851 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 02:18:04,851 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178996142] [2021-11-17 02:18:04,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 02:18:04,851 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 02:18:04,851 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 02:18:04,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 02:18:04,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 02:18:04,852 INFO L87 Difference]: Start difference. First operand 4937 states and 7576 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-17 02:18:06,898 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:18:08,965 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:18:17,873 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:18:18,889 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:18:22,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:18:22,072 INFO L93 Difference]: Finished difference Result 9115 states and 14234 transitions. [2021-11-17 02:18:22,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 02:18:22,073 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 203 [2021-11-17 02:18:22,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:18:22,118 INFO L225 Difference]: With dead ends: 9115 [2021-11-17 02:18:22,118 INFO L226 Difference]: Without dead ends: 9027 [2021-11-17 02:18:22,126 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-17 02:18:22,126 INFO L933 BasicCegarLoop]: 6021 mSDtfsCounter, 8306 mSDsluCounter, 9986 mSDsCounter, 0 mSdLazyCounter, 5427 mSolverCounterSat, 3713 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8537 SdHoareTripleChecker+Valid, 16007 SdHoareTripleChecker+Invalid, 9143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3713 IncrementalHoareTripleChecker+Valid, 5427 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.8s IncrementalHoareTripleChecker+Time [2021-11-17 02:18:22,127 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8537 Valid, 16007 Invalid, 9143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3713 Valid, 5427 Invalid, 3 Unknown, 0 Unchecked, 16.8s Time] [2021-11-17 02:18:22,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9027 states. [2021-11-17 02:18:22,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9027 to 7623. [2021-11-17 02:18:22,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7623 states, 5781 states have (on average 1.4871129562359453) internal successors, (8597), 6011 states have internal predecessors, (8597), 1506 states have call successors, (1506), 338 states have call predecessors, (1506), 335 states have return successors, (1505), 1407 states have call predecessors, (1505), 1503 states have call successors, (1505) [2021-11-17 02:18:22,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7623 states to 7623 states and 11608 transitions. [2021-11-17 02:18:22,374 INFO L78 Accepts]: Start accepts. Automaton has 7623 states and 11608 transitions. Word has length 203 [2021-11-17 02:18:22,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:18:22,375 INFO L470 AbstractCegarLoop]: Abstraction has 7623 states and 11608 transitions. [2021-11-17 02:18:22,375 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-17 02:18:22,375 INFO L276 IsEmpty]: Start isEmpty. Operand 7623 states and 11608 transitions. [2021-11-17 02:18:22,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2021-11-17 02:18:22,381 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:18:22,381 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 02:18:22,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-17 02:18:22,382 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:18:22,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:18:22,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1664573996, now seen corresponding path program 1 times [2021-11-17 02:18:22,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 02:18:22,382 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104391492] [2021-11-17 02:18:22,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:18:22,383 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 02:18:22,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:22,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:18:22,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:22,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:22,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:22,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:22,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:22,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 02:18:22,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:22,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:22,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:22,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:22,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:22,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 02:18:22,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:22,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:22,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:22,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:22,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:22,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 02:18:22,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:22,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:22,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:22,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:22,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:22,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 02:18:22,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:22,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:22,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:22,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:22,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:22,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 02:18:22,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:22,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:22,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:22,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:22,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:22,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-17 02:18:22,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:22,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:22,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:22,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 02:18:22,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:22,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:22,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:22,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 02:18:22,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:22,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:22,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:22,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-17 02:18:22,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:22,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:22,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:22,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 02:18:22,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:22,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:22,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:22,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 02:18:22,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:22,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:22,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:22,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-17 02:18:22,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:22,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:22,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:22,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-17 02:18:22,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:22,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-17 02:18:22,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:22,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:22,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:22,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:22,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:22,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-11-17 02:18:22,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:22,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:18:22,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:22,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:18:22,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:22,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-11-17 02:18:22,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:22,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-11-17 02:18:22,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:22,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-11-17 02:18:22,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:18:22,800 INFO L134 CoverageAnalysis]: Checked inductivity of 583 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2021-11-17 02:18:22,800 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 02:18:22,800 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104391492] [2021-11-17 02:18:22,800 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104391492] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 02:18:22,800 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 02:18:22,800 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-17 02:18:22,800 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900312362] [2021-11-17 02:18:22,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 02:18:22,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-17 02:18:22,801 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 02:18:22,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-17 02:18:22,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-11-17 02:18:22,802 INFO L87 Difference]: Start difference. First operand 7623 states and 11608 transitions. Second operand has 10 states, 10 states have (on average 8.2) internal successors, (82), 6 states have internal predecessors, (82), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-17 02:18:24,850 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:18:26,914 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:18:28,996 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:18:44,407 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-17 02:18:46,485 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-17 02:18:48,555 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-17 02:18:50,912 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:18:53,569 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:18:55,092 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:18:57,081 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:19:03,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:19:03,546 INFO L93 Difference]: Finished difference Result 16645 states and 25712 transitions. [2021-11-17 02:19:03,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-17 02:19:03,547 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.2) internal successors, (82), 6 states have internal predecessors, (82), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 268 [2021-11-17 02:19:03,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:19:03,627 INFO L225 Difference]: With dead ends: 16645 [2021-11-17 02:19:03,627 INFO L226 Difference]: Without dead ends: 9033 [2021-11-17 02:19:03,663 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2021-11-17 02:19:03,665 INFO L933 BasicCegarLoop]: 5189 mSDtfsCounter, 6445 mSDsluCounter, 19716 mSDsCounter, 0 mSdLazyCounter, 19529 mSolverCounterSat, 3643 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6730 SdHoareTripleChecker+Valid, 24905 SdHoareTripleChecker+Invalid, 23178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3643 IncrementalHoareTripleChecker+Valid, 19529 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.2s IncrementalHoareTripleChecker+Time [2021-11-17 02:19:03,665 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6730 Valid, 24905 Invalid, 23178 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3643 Valid, 19529 Invalid, 6 Unknown, 0 Unchecked, 40.2s Time] [2021-11-17 02:19:03,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9033 states. [2021-11-17 02:19:03,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9033 to 7618. [2021-11-17 02:19:03,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7618 states, 5779 states have (on average 1.4865893753244506) internal successors, (8591), 6008 states have internal predecessors, (8591), 1504 states have call successors, (1504), 336 states have call predecessors, (1504), 334 states have return successors, (1505), 1404 states have call predecessors, (1505), 1501 states have call successors, (1505) [2021-11-17 02:19:03,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7618 states to 7618 states and 11600 transitions. [2021-11-17 02:19:03,867 INFO L78 Accepts]: Start accepts. Automaton has 7618 states and 11600 transitions. Word has length 268 [2021-11-17 02:19:03,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:19:03,868 INFO L470 AbstractCegarLoop]: Abstraction has 7618 states and 11600 transitions. [2021-11-17 02:19:03,868 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.2) internal successors, (82), 6 states have internal predecessors, (82), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-17 02:19:03,868 INFO L276 IsEmpty]: Start isEmpty. Operand 7618 states and 11600 transitions. [2021-11-17 02:19:03,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2021-11-17 02:19:03,873 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:19:03,873 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 02:19:03,874 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-17 02:19:03,874 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:19:03,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:19:03,874 INFO L85 PathProgramCache]: Analyzing trace with hash 183155597, now seen corresponding path program 1 times [2021-11-17 02:19:03,874 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 02:19:03,874 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343435536] [2021-11-17 02:19:03,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:19:03,875 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 02:19:03,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:04,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:19:04,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:04,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:04,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:04,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:19:04,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:04,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 02:19:04,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:04,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:04,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:04,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:19:04,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:04,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 02:19:04,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:04,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:04,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:04,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:19:04,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:04,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 02:19:04,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:04,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:04,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:04,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:19:04,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:04,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 02:19:04,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:04,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:04,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:04,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:19:04,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:04,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 02:19:04,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:04,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:04,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:04,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:19:04,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:04,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-17 02:19:04,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:04,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:04,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:04,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 02:19:04,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:04,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:04,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:04,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 02:19:04,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:04,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:04,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:04,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-17 02:19:04,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:04,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:04,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:04,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 02:19:04,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:04,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:04,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:04,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 02:19:04,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:04,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:04,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:04,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-17 02:19:04,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:04,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:04,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:04,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-17 02:19:04,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:04,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-11-17 02:19:04,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:04,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-11-17 02:19:04,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:04,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:04,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:04,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:19:04,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:04,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 02:19:04,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:04,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:04,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:04,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:19:04,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:04,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-11-17 02:19:04,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:04,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-11-17 02:19:04,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:04,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-11-17 02:19:04,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:04,246 INFO L134 CoverageAnalysis]: Checked inductivity of 586 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 584 trivial. 0 not checked. [2021-11-17 02:19:04,247 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 02:19:04,247 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343435536] [2021-11-17 02:19:04,247 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343435536] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 02:19:04,247 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 02:19:04,247 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-17 02:19:04,247 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566820844] [2021-11-17 02:19:04,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 02:19:04,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 02:19:04,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 02:19:04,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 02:19:04,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-17 02:19:04,249 INFO L87 Difference]: Start difference. First operand 7618 states and 11600 transitions. Second operand has 8 states, 8 states have (on average 10.375) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (26), 6 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-17 02:19:06,296 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:19:08,412 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:19:10,500 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:19:12,593 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:19:26,118 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:19:27,905 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:19:35,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:19:35,746 INFO L93 Difference]: Finished difference Result 16792 states and 25986 transitions. [2021-11-17 02:19:35,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-17 02:19:35,755 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (26), 6 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 273 [2021-11-17 02:19:35,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:19:35,816 INFO L225 Difference]: With dead ends: 16792 [2021-11-17 02:19:35,816 INFO L226 Difference]: Without dead ends: 9203 [2021-11-17 02:19:35,842 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-11-17 02:19:35,843 INFO L933 BasicCegarLoop]: 5497 mSDtfsCounter, 9828 mSDsluCounter, 10730 mSDsCounter, 0 mSdLazyCounter, 13806 mSolverCounterSat, 4362 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10113 SdHoareTripleChecker+Valid, 16227 SdHoareTripleChecker+Invalid, 18172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4362 IncrementalHoareTripleChecker+Valid, 13806 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.9s IncrementalHoareTripleChecker+Time [2021-11-17 02:19:35,843 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10113 Valid, 16227 Invalid, 18172 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4362 Valid, 13806 Invalid, 4 Unknown, 0 Unchecked, 30.9s Time] [2021-11-17 02:19:35,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9203 states. [2021-11-17 02:19:36,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9203 to 7618. [2021-11-17 02:19:36,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7618 states, 5779 states have (on average 1.485897214050874) internal successors, (8587), 6008 states have internal predecessors, (8587), 1504 states have call successors, (1504), 336 states have call predecessors, (1504), 334 states have return successors, (1505), 1404 states have call predecessors, (1505), 1501 states have call successors, (1505) [2021-11-17 02:19:36,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7618 states to 7618 states and 11596 transitions. [2021-11-17 02:19:36,252 INFO L78 Accepts]: Start accepts. Automaton has 7618 states and 11596 transitions. Word has length 273 [2021-11-17 02:19:36,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:19:36,253 INFO L470 AbstractCegarLoop]: Abstraction has 7618 states and 11596 transitions. [2021-11-17 02:19:36,253 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (26), 6 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-17 02:19:36,253 INFO L276 IsEmpty]: Start isEmpty. Operand 7618 states and 11596 transitions. [2021-11-17 02:19:36,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2021-11-17 02:19:36,259 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:19:36,259 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 02:19:36,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-17 02:19:36,259 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:19:36,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:19:36,260 INFO L85 PathProgramCache]: Analyzing trace with hash 140764322, now seen corresponding path program 1 times [2021-11-17 02:19:36,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 02:19:36,260 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542959697] [2021-11-17 02:19:36,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:19:36,260 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 02:19:36,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:36,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:19:36,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:36,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:36,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:36,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:19:36,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:36,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 02:19:36,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:36,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:36,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:36,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:19:36,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:36,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 02:19:36,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:36,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:36,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:36,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:19:36,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:36,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 02:19:36,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:36,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:36,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:36,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:19:36,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:36,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 02:19:36,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:36,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:36,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:36,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:19:36,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:36,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 02:19:36,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:36,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:36,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:36,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:19:36,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:36,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-17 02:19:36,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:36,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:36,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:36,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 02:19:36,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:36,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:36,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:36,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 02:19:36,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:36,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:36,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:36,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-17 02:19:36,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:36,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:36,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:36,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 02:19:36,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:36,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:36,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:36,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 02:19:36,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:36,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:36,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:36,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-17 02:19:36,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:36,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:36,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:36,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-17 02:19:36,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:36,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-11-17 02:19:36,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:36,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-11-17 02:19:36,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:36,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:36,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:36,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:19:36,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:36,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-17 02:19:36,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:36,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:36,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:36,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:19:36,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:36,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2021-11-17 02:19:36,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:36,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-11-17 02:19:36,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:36,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2021-11-17 02:19:36,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:36,668 INFO L134 CoverageAnalysis]: Checked inductivity of 586 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 584 trivial. 0 not checked. [2021-11-17 02:19:36,668 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 02:19:36,668 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542959697] [2021-11-17 02:19:36,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542959697] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 02:19:36,668 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 02:19:36,668 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 02:19:36,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954849664] [2021-11-17 02:19:36,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 02:19:36,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 02:19:36,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 02:19:36,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 02:19:36,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-17 02:19:36,670 INFO L87 Difference]: Start difference. First operand 7618 states and 11596 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (26), 6 states have call predecessors, (26), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-11-17 02:19:38,718 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:19:40,821 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:19:50,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:19:50,688 INFO L93 Difference]: Finished difference Result 16611 states and 25658 transitions. [2021-11-17 02:19:50,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-17 02:19:50,688 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (26), 6 states have call predecessors, (26), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 276 [2021-11-17 02:19:50,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:19:50,744 INFO L225 Difference]: With dead ends: 16611 [2021-11-17 02:19:50,753 INFO L226 Difference]: Without dead ends: 9022 [2021-11-17 02:19:50,778 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2021-11-17 02:19:50,791 INFO L933 BasicCegarLoop]: 5176 mSDtfsCounter, 13645 mSDsluCounter, 3842 mSDsCounter, 0 mSdLazyCounter, 3749 mSolverCounterSat, 6431 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14076 SdHoareTripleChecker+Valid, 9018 SdHoareTripleChecker+Invalid, 10182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6431 IncrementalHoareTripleChecker+Valid, 3749 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.6s IncrementalHoareTripleChecker+Time [2021-11-17 02:19:50,792 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14076 Valid, 9018 Invalid, 10182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6431 Valid, 3749 Invalid, 2 Unknown, 0 Unchecked, 13.6s Time] [2021-11-17 02:19:50,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9022 states. [2021-11-17 02:19:51,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9022 to 7618. [2021-11-17 02:19:51,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7618 states, 5779 states have (on average 1.485205052777297) internal successors, (8583), 6008 states have internal predecessors, (8583), 1504 states have call successors, (1504), 336 states have call predecessors, (1504), 334 states have return successors, (1505), 1404 states have call predecessors, (1505), 1501 states have call successors, (1505) [2021-11-17 02:19:51,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7618 states to 7618 states and 11592 transitions. [2021-11-17 02:19:51,040 INFO L78 Accepts]: Start accepts. Automaton has 7618 states and 11592 transitions. Word has length 276 [2021-11-17 02:19:51,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:19:51,041 INFO L470 AbstractCegarLoop]: Abstraction has 7618 states and 11592 transitions. [2021-11-17 02:19:51,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (26), 6 states have call predecessors, (26), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-11-17 02:19:51,041 INFO L276 IsEmpty]: Start isEmpty. Operand 7618 states and 11592 transitions. [2021-11-17 02:19:51,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2021-11-17 02:19:51,046 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:19:51,046 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 02:19:51,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-17 02:19:51,046 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:19:51,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:19:51,047 INFO L85 PathProgramCache]: Analyzing trace with hash -508392981, now seen corresponding path program 1 times [2021-11-17 02:19:51,047 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 02:19:51,047 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789257857] [2021-11-17 02:19:51,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:19:51,047 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 02:19:51,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:51,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:19:51,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:51,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:51,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:51,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:19:51,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:51,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 02:19:51,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:51,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:51,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:51,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:19:51,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:51,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 02:19:51,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:51,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:51,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:51,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:19:51,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:51,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 02:19:51,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:51,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:51,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:51,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:19:51,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:51,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 02:19:51,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:51,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:51,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:51,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:19:51,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:51,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 02:19:51,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:51,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:51,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:51,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:19:51,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:51,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-17 02:19:51,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:51,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:51,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:51,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 02:19:51,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:51,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:51,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:51,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 02:19:51,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:51,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:51,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:51,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-17 02:19:51,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:51,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:51,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:51,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 02:19:51,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:51,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:51,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:51,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 02:19:51,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:51,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:51,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:51,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-17 02:19:51,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:51,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:51,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:51,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-17 02:19:51,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:51,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-11-17 02:19:51,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:51,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-11-17 02:19:51,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:51,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:51,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:51,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:19:51,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:51,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-17 02:19:51,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:51,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:19:51,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:51,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:19:51,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:51,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-11-17 02:19:51,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:51,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2021-11-17 02:19:51,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:51,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2021-11-17 02:19:51,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:19:51,419 INFO L134 CoverageAnalysis]: Checked inductivity of 586 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 586 trivial. 0 not checked. [2021-11-17 02:19:51,419 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 02:19:51,419 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789257857] [2021-11-17 02:19:51,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789257857] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 02:19:51,420 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 02:19:51,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 02:19:51,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262439314] [2021-11-17 02:19:51,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 02:19:51,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 02:19:51,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 02:19:51,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 02:19:51,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-17 02:19:51,422 INFO L87 Difference]: Start difference. First operand 7618 states and 11592 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 3 states have call successors, (26), 7 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-17 02:19:53,469 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:19:55,578 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:20:11,606 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:20:17,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:20:17,251 INFO L93 Difference]: Finished difference Result 16610 states and 25643 transitions. [2021-11-17 02:20:17,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-17 02:20:17,252 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 3 states have call successors, (26), 7 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 275 [2021-11-17 02:20:17,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:20:17,305 INFO L225 Difference]: With dead ends: 16610 [2021-11-17 02:20:17,318 INFO L226 Difference]: Without dead ends: 9021 [2021-11-17 02:20:17,332 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2021-11-17 02:20:17,349 INFO L933 BasicCegarLoop]: 6444 mSDtfsCounter, 12285 mSDsluCounter, 6770 mSDsCounter, 0 mSdLazyCounter, 10253 mSolverCounterSat, 6014 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12852 SdHoareTripleChecker+Valid, 13214 SdHoareTripleChecker+Invalid, 16270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6014 IncrementalHoareTripleChecker+Valid, 10253 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.2s IncrementalHoareTripleChecker+Time [2021-11-17 02:20:17,349 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12852 Valid, 13214 Invalid, 16270 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6014 Valid, 10253 Invalid, 3 Unknown, 0 Unchecked, 25.2s Time] [2021-11-17 02:20:17,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9021 states. [2021-11-17 02:20:17,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9021 to 7615. [2021-11-17 02:20:17,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7615 states, 5778 states have (on average 1.4849428868120458) internal successors, (8580), 6005 states have internal predecessors, (8580), 1503 states have call successors, (1503), 336 states have call predecessors, (1503), 333 states have return successors, (1493), 1404 states have call predecessors, (1493), 1493 states have call successors, (1493) [2021-11-17 02:20:17,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7615 states to 7615 states and 11576 transitions. [2021-11-17 02:20:17,629 INFO L78 Accepts]: Start accepts. Automaton has 7615 states and 11576 transitions. Word has length 275 [2021-11-17 02:20:17,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:20:17,630 INFO L470 AbstractCegarLoop]: Abstraction has 7615 states and 11576 transitions. [2021-11-17 02:20:17,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 3 states have call successors, (26), 7 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-17 02:20:17,631 INFO L276 IsEmpty]: Start isEmpty. Operand 7615 states and 11576 transitions. [2021-11-17 02:20:17,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2021-11-17 02:20:17,645 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:20:17,645 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 02:20:17,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-17 02:20:17,646 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:20:17,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:20:17,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1454075083, now seen corresponding path program 1 times [2021-11-17 02:20:17,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 02:20:17,647 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063272534] [2021-11-17 02:20:17,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:20:17,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 02:20:17,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:20:17,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:20:17,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:20:17,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:20:17,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:20:17,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:20:17,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:20:17,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 02:20:17,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:20:17,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:20:17,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:20:17,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:20:17,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:20:17,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 02:20:17,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:20:17,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:20:17,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:20:17,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:20:17,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:20:17,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 02:20:17,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:20:17,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:20:17,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:20:17,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:20:17,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:20:17,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 02:20:17,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:20:17,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:20:17,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:20:17,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:20:17,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:20:17,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 02:20:17,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:20:17,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:20:17,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:20:17,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:20:17,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:20:17,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-17 02:20:17,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:20:17,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:20:17,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:20:17,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 02:20:17,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:20:17,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:20:17,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:20:17,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 02:20:17,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:20:17,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:20:17,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:20:17,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-17 02:20:17,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:20:17,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:20:17,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:20:17,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 02:20:17,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:20:17,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:20:17,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:20:17,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 02:20:17,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:20:17,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:20:17,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:20:17,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-17 02:20:17,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:20:17,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:20:17,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:20:17,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-17 02:20:17,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:20:17,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-11-17 02:20:17,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:20:17,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-11-17 02:20:17,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:20:17,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:20:17,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:20:17,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:20:17,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:20:17,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-17 02:20:17,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:20:17,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:20:17,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:20:17,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:20:17,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:20:17,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2021-11-17 02:20:17,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:20:17,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-11-17 02:20:17,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:20:17,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-11-17 02:20:17,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:20:18,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2021-11-17 02:20:18,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:20:18,004 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 587 trivial. 0 not checked. [2021-11-17 02:20:18,004 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 02:20:18,004 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063272534] [2021-11-17 02:20:18,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063272534] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 02:20:18,004 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 02:20:18,005 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 02:20:18,005 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745960570] [2021-11-17 02:20:18,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 02:20:18,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 02:20:18,005 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 02:20:18,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 02:20:18,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-17 02:20:18,006 INFO L87 Difference]: Start difference. First operand 7615 states and 11576 transitions. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (26), 6 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-17 02:20:20,054 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:20:22,168 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:20:24,280 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:20:26,401 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:20:28,520 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:20:43,391 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:20:45,422 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:20:47,463 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:20:59,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:20:59,520 INFO L93 Difference]: Finished difference Result 21047 states and 32424 transitions. [2021-11-17 02:20:59,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-17 02:20:59,521 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (26), 6 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 300 [2021-11-17 02:20:59,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:20:59,567 INFO L225 Difference]: With dead ends: 21047 [2021-11-17 02:20:59,567 INFO L226 Difference]: Without dead ends: 13461 [2021-11-17 02:20:59,586 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2021-11-17 02:20:59,587 INFO L933 BasicCegarLoop]: 6898 mSDtfsCounter, 11287 mSDsluCounter, 10655 mSDsCounter, 0 mSdLazyCounter, 13756 mSolverCounterSat, 6357 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11786 SdHoareTripleChecker+Valid, 17553 SdHoareTripleChecker+Invalid, 20120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6357 IncrementalHoareTripleChecker+Valid, 13756 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.5s IncrementalHoareTripleChecker+Time [2021-11-17 02:20:59,587 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11786 Valid, 17553 Invalid, 20120 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6357 Valid, 13756 Invalid, 7 Unknown, 0 Unchecked, 40.5s Time] [2021-11-17 02:20:59,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13461 states. [2021-11-17 02:20:59,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13461 to 11221. [2021-11-17 02:20:59,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11221 states, 8452 states have (on average 1.4729058211074302) internal successors, (12449), 8804 states have internal predecessors, (12449), 2247 states have call successors, (2247), 525 states have call predecessors, (2247), 521 states have return successors, (2237), 2090 states have call predecessors, (2237), 2237 states have call successors, (2237) [2021-11-17 02:20:59,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11221 states to 11221 states and 16933 transitions. [2021-11-17 02:20:59,918 INFO L78 Accepts]: Start accepts. Automaton has 11221 states and 16933 transitions. Word has length 300 [2021-11-17 02:20:59,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:20:59,919 INFO L470 AbstractCegarLoop]: Abstraction has 11221 states and 16933 transitions. [2021-11-17 02:20:59,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (26), 6 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-17 02:20:59,919 INFO L276 IsEmpty]: Start isEmpty. Operand 11221 states and 16933 transitions. [2021-11-17 02:20:59,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2021-11-17 02:20:59,937 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:20:59,938 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 02:20:59,938 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-17 02:20:59,938 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:20:59,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:20:59,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1227622379, now seen corresponding path program 1 times [2021-11-17 02:20:59,939 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 02:20:59,939 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000429795] [2021-11-17 02:20:59,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:20:59,939 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 02:21:00,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:00,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:21:00,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:00,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:21:00,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:00,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:21:00,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:00,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 02:21:00,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:00,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:21:00,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:00,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:21:00,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:00,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 02:21:00,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:00,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:21:00,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:00,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:21:00,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:00,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 02:21:00,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:00,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:21:00,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:00,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:21:00,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:00,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 02:21:00,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:00,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:21:00,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:00,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:21:00,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:00,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 02:21:00,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:00,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:21:00,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:00,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:21:00,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:00,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-17 02:21:00,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:00,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:21:00,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:00,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 02:21:00,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:00,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:21:00,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:00,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 02:21:00,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:00,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:21:00,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:00,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-17 02:21:00,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:00,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:21:00,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:00,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 02:21:00,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:00,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:21:00,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:00,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 02:21:00,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:00,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:21:00,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:00,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-17 02:21:00,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:00,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:21:00,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:00,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-17 02:21:00,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:00,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-11-17 02:21:00,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:00,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-11-17 02:21:00,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:00,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:21:00,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:00,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:21:00,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:00,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-17 02:21:00,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:00,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:21:00,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:00,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:21:00,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:00,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-17 02:21:00,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:00,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2021-11-17 02:21:00,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:00,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2021-11-17 02:21:00,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:00,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2021-11-17 02:21:00,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:00,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-11-17 02:21:00,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:00,299 INFO L134 CoverageAnalysis]: Checked inductivity of 618 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 600 trivial. 0 not checked. [2021-11-17 02:21:00,300 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 02:21:00,300 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000429795] [2021-11-17 02:21:00,300 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000429795] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 02:21:00,300 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 02:21:00,300 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-17 02:21:00,300 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281417857] [2021-11-17 02:21:00,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 02:21:00,301 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 02:21:00,301 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 02:21:00,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 02:21:00,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-17 02:21:00,302 INFO L87 Difference]: Start difference. First operand 11221 states and 16933 transitions. Second operand has 8 states, 8 states have (on average 14.25) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (27), 6 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-17 02:21:02,355 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:21:27,874 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:21:32,209 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:21:38,219 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-17 02:21:45,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:21:45,539 INFO L93 Difference]: Finished difference Result 29593 states and 45379 transitions. [2021-11-17 02:21:45,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-17 02:21:45,540 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (27), 6 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 316 [2021-11-17 02:21:45,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:21:45,671 INFO L225 Difference]: With dead ends: 29593 [2021-11-17 02:21:45,671 INFO L226 Difference]: Without dead ends: 18401 [2021-11-17 02:21:45,691 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2021-11-17 02:21:45,693 INFO L933 BasicCegarLoop]: 8452 mSDtfsCounter, 10428 mSDsluCounter, 15469 mSDsCounter, 0 mSdLazyCounter, 17936 mSolverCounterSat, 6104 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10849 SdHoareTripleChecker+Valid, 23921 SdHoareTripleChecker+Invalid, 24043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6104 IncrementalHoareTripleChecker+Valid, 17936 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.0s IncrementalHoareTripleChecker+Time [2021-11-17 02:21:45,695 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10849 Valid, 23921 Invalid, 24043 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6104 Valid, 17936 Invalid, 3 Unknown, 0 Unchecked, 44.0s Time] [2021-11-17 02:21:45,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18401 states. [2021-11-17 02:21:46,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18401 to 11223. [2021-11-17 02:21:46,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11223 states, 8454 states have (on average 1.4726756564939674) internal successors, (12450), 8806 states have internal predecessors, (12450), 2247 states have call successors, (2247), 525 states have call predecessors, (2247), 521 states have return successors, (2237), 2090 states have call predecessors, (2237), 2237 states have call successors, (2237) [2021-11-17 02:21:46,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11223 states to 11223 states and 16934 transitions. [2021-11-17 02:21:46,243 INFO L78 Accepts]: Start accepts. Automaton has 11223 states and 16934 transitions. Word has length 316 [2021-11-17 02:21:46,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:21:46,244 INFO L470 AbstractCegarLoop]: Abstraction has 11223 states and 16934 transitions. [2021-11-17 02:21:46,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (27), 6 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-17 02:21:46,244 INFO L276 IsEmpty]: Start isEmpty. Operand 11223 states and 16934 transitions. [2021-11-17 02:21:46,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2021-11-17 02:21:46,270 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:21:46,271 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 02:21:46,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-17 02:21:46,271 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:21:46,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:21:46,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1512775099, now seen corresponding path program 1 times [2021-11-17 02:21:46,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 02:21:46,272 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451476602] [2021-11-17 02:21:46,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:21:46,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 02:21:46,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:46,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:21:46,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:46,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:21:46,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:46,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:21:46,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:46,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 02:21:46,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:46,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:21:46,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:46,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:21:46,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:46,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 02:21:46,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:46,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:21:46,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:46,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:21:46,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:46,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 02:21:46,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:46,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:21:46,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:46,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:21:46,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:46,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 02:21:46,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:46,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:21:46,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:46,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:21:46,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:46,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 02:21:46,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:46,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:21:46,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:46,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:21:46,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:46,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-17 02:21:46,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:46,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:21:46,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:46,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 02:21:46,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:46,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:21:46,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:46,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 02:21:46,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:46,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:21:46,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:46,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-17 02:21:46,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:46,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:21:46,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:46,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 02:21:46,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:46,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:21:46,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:46,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 02:21:46,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:46,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:21:46,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:46,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-17 02:21:46,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:46,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:21:46,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:46,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-17 02:21:46,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:46,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-11-17 02:21:46,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:46,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-11-17 02:21:46,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:46,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:21:46,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:46,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:21:46,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:46,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-17 02:21:46,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:46,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:21:46,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:46,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:21:46,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:46,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-17 02:21:46,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:46,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-11-17 02:21:46,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:46,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-11-17 02:21:46,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:46,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-11-17 02:21:46,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:46,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-11-17 02:21:46,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:46,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2021-11-17 02:21:46,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:46,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2021-11-17 02:21:46,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:46,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2021-11-17 02:21:46,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:46,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2021-11-17 02:21:46,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:21:46,709 INFO L134 CoverageAnalysis]: Checked inductivity of 628 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 608 trivial. 0 not checked. [2021-11-17 02:21:46,710 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 02:21:46,710 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451476602] [2021-11-17 02:21:46,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451476602] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 02:21:46,710 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 02:21:46,710 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 02:21:46,710 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172910063] [2021-11-17 02:21:46,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 02:21:46,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 02:21:46,711 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 02:21:46,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 02:21:46,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-17 02:21:46,712 INFO L87 Difference]: Start difference. First operand 11223 states and 16934 transitions. Second operand has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 3 states have internal predecessors, (129), 2 states have call successors, (31), 6 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-11-17 02:21:48,773 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:21:50,837 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:22:00,872 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:22:08,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:22:08,058 INFO L93 Difference]: Finished difference Result 24640 states and 37745 transitions. [2021-11-17 02:22:08,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-17 02:22:08,058 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 3 states have internal predecessors, (129), 2 states have call successors, (31), 6 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 345 [2021-11-17 02:22:08,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:22:08,108 INFO L225 Difference]: With dead ends: 24640 [2021-11-17 02:22:08,108 INFO L226 Difference]: Without dead ends: 13446 [2021-11-17 02:22:08,137 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-17 02:22:08,138 INFO L933 BasicCegarLoop]: 5187 mSDtfsCounter, 6853 mSDsluCounter, 8579 mSDsCounter, 0 mSdLazyCounter, 8528 mSolverCounterSat, 3740 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7138 SdHoareTripleChecker+Valid, 13766 SdHoareTripleChecker+Invalid, 12271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3740 IncrementalHoareTripleChecker+Valid, 8528 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.6s IncrementalHoareTripleChecker+Time [2021-11-17 02:22:08,139 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7138 Valid, 13766 Invalid, 12271 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3740 Valid, 8528 Invalid, 3 Unknown, 0 Unchecked, 20.6s Time] [2021-11-17 02:22:08,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13446 states. [2021-11-17 02:22:08,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13446 to 11224. [2021-11-17 02:22:08,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11224 states, 8455 states have (on average 1.4726197516262567) internal successors, (12451), 8807 states have internal predecessors, (12451), 2247 states have call successors, (2247), 525 states have call predecessors, (2247), 521 states have return successors, (2237), 2090 states have call predecessors, (2237), 2237 states have call successors, (2237) [2021-11-17 02:22:08,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11224 states to 11224 states and 16935 transitions. [2021-11-17 02:22:08,659 INFO L78 Accepts]: Start accepts. Automaton has 11224 states and 16935 transitions. Word has length 345 [2021-11-17 02:22:08,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:22:08,660 INFO L470 AbstractCegarLoop]: Abstraction has 11224 states and 16935 transitions. [2021-11-17 02:22:08,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 3 states have internal predecessors, (129), 2 states have call successors, (31), 6 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-11-17 02:22:08,660 INFO L276 IsEmpty]: Start isEmpty. Operand 11224 states and 16935 transitions. [2021-11-17 02:22:08,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2021-11-17 02:22:08,686 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:22:08,686 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 02:22:08,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-17 02:22:08,686 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:22:08,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:22:08,687 INFO L85 PathProgramCache]: Analyzing trace with hash -847793526, now seen corresponding path program 1 times [2021-11-17 02:22:08,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 02:22:08,687 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975704466] [2021-11-17 02:22:08,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:22:08,687 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 02:22:08,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:08,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:22:08,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:08,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:22:08,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:08,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:22:08,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:08,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 02:22:08,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:08,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:22:08,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:08,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:22:08,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:08,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 02:22:08,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:08,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:22:08,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:08,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:22:08,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:08,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 02:22:08,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:08,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:22:08,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:08,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:22:08,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:08,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 02:22:08,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:08,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:22:08,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:08,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:22:08,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:08,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 02:22:08,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:08,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:22:08,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:08,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:22:08,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:08,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-17 02:22:08,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:08,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:22:08,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:08,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 02:22:08,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:08,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:22:08,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:08,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 02:22:08,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:08,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:22:08,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:08,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-17 02:22:08,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:09,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:22:09,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:09,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 02:22:09,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:09,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:22:09,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:09,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 02:22:09,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:09,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:22:09,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:09,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-17 02:22:09,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:09,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:22:09,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:09,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-17 02:22:09,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:09,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-11-17 02:22:09,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:09,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-11-17 02:22:09,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:09,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:22:09,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:09,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:22:09,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:09,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-17 02:22:09,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:09,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:22:09,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:09,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:22:09,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:09,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-17 02:22:09,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:09,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-11-17 02:22:09,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:09,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-11-17 02:22:09,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:09,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2021-11-17 02:22:09,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:09,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2021-11-17 02:22:09,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:09,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2021-11-17 02:22:09,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:09,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-11-17 02:22:09,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:09,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2021-11-17 02:22:09,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:09,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2021-11-17 02:22:09,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:09,125 INFO L134 CoverageAnalysis]: Checked inductivity of 628 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2021-11-17 02:22:09,125 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 02:22:09,125 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975704466] [2021-11-17 02:22:09,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975704466] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 02:22:09,125 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 02:22:09,125 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 02:22:09,125 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282744005] [2021-11-17 02:22:09,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 02:22:09,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 02:22:09,126 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 02:22:09,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 02:22:09,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-17 02:22:09,127 INFO L87 Difference]: Start difference. First operand 11224 states and 16935 transitions. Second operand has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 3 states have internal predecessors, (129), 2 states have call successors, (31), 6 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-11-17 02:22:11,201 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:22:13,327 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:22:15,460 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:22:28,711 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:22:30,756 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:22:40,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:22:40,400 INFO L93 Difference]: Finished difference Result 26652 states and 41185 transitions. [2021-11-17 02:22:40,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-17 02:22:40,400 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 3 states have internal predecessors, (129), 2 states have call successors, (31), 6 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 347 [2021-11-17 02:22:40,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:22:40,445 INFO L225 Difference]: With dead ends: 26652 [2021-11-17 02:22:40,446 INFO L226 Difference]: Without dead ends: 15457 [2021-11-17 02:22:40,466 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-17 02:22:40,467 INFO L933 BasicCegarLoop]: 6545 mSDtfsCounter, 8045 mSDsluCounter, 13087 mSDsCounter, 0 mSdLazyCounter, 11750 mSolverCounterSat, 3649 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8693 SdHoareTripleChecker+Valid, 19632 SdHoareTripleChecker+Invalid, 15403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3649 IncrementalHoareTripleChecker+Valid, 11750 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.4s IncrementalHoareTripleChecker+Time [2021-11-17 02:22:40,467 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8693 Valid, 19632 Invalid, 15403 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3649 Valid, 11750 Invalid, 4 Unknown, 0 Unchecked, 30.4s Time] [2021-11-17 02:22:40,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15457 states. [2021-11-17 02:22:40,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15457 to 11230. [2021-11-17 02:22:40,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11230 states, 8461 states have (on average 1.4722845999290863) internal successors, (12457), 8813 states have internal predecessors, (12457), 2247 states have call successors, (2247), 525 states have call predecessors, (2247), 521 states have return successors, (2237), 2090 states have call predecessors, (2237), 2237 states have call successors, (2237) [2021-11-17 02:22:40,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11230 states to 11230 states and 16941 transitions. [2021-11-17 02:22:40,860 INFO L78 Accepts]: Start accepts. Automaton has 11230 states and 16941 transitions. Word has length 347 [2021-11-17 02:22:40,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:22:40,861 INFO L470 AbstractCegarLoop]: Abstraction has 11230 states and 16941 transitions. [2021-11-17 02:22:40,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 3 states have internal predecessors, (129), 2 states have call successors, (31), 6 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-11-17 02:22:40,861 INFO L276 IsEmpty]: Start isEmpty. Operand 11230 states and 16941 transitions. [2021-11-17 02:22:40,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2021-11-17 02:22:40,880 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:22:40,880 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 02:22:40,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-17 02:22:40,881 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:22:40,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:22:40,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1357266616, now seen corresponding path program 1 times [2021-11-17 02:22:40,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 02:22:40,881 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549012772] [2021-11-17 02:22:40,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:22:40,881 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 02:22:40,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:41,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:22:41,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:41,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:22:41,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:41,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:22:41,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:41,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 02:22:41,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:41,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:22:41,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:41,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:22:41,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:41,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 02:22:41,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:41,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:22:41,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:41,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:22:41,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:41,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 02:22:41,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:41,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:22:41,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:41,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:22:41,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:41,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 02:22:41,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:41,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:22:41,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:41,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:22:41,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:41,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 02:22:41,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:41,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:22:41,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:41,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:22:41,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:41,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-17 02:22:41,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:41,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:22:41,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:41,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 02:22:41,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:41,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:22:41,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:41,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 02:22:41,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:41,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:22:41,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:41,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-17 02:22:41,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:41,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:22:41,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:41,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 02:22:41,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:41,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:22:41,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:41,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 02:22:41,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:41,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:22:41,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:41,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-17 02:22:41,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:41,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:22:41,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:41,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-17 02:22:41,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:41,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-11-17 02:22:41,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:41,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-11-17 02:22:41,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:41,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:22:41,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:41,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:22:41,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:41,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-17 02:22:41,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:41,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:22:41,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:41,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:22:41,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:41,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-17 02:22:41,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:41,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-11-17 02:22:41,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:41,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-11-17 02:22:41,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:41,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2021-11-17 02:22:41,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:41,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2021-11-17 02:22:41,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:41,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2021-11-17 02:22:41,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:41,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-11-17 02:22:41,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:41,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2021-11-17 02:22:41,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:41,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2021-11-17 02:22:41,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:22:41,255 INFO L134 CoverageAnalysis]: Checked inductivity of 628 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 618 trivial. 0 not checked. [2021-11-17 02:22:41,255 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 02:22:41,255 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549012772] [2021-11-17 02:22:41,256 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549012772] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 02:22:41,256 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 02:22:41,256 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 02:22:41,256 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447051766] [2021-11-17 02:22:41,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 02:22:41,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 02:22:41,257 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 02:22:41,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 02:22:41,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-17 02:22:41,257 INFO L87 Difference]: Start difference. First operand 11230 states and 16941 transitions. Second operand has 7 states, 7 states have (on average 18.0) internal successors, (126), 3 states have internal predecessors, (126), 2 states have call successors, (31), 6 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-11-17 02:22:43,337 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:22:45,475 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:22:55,926 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:23:04,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:23:04,161 INFO L93 Difference]: Finished difference Result 24695 states and 37817 transitions. [2021-11-17 02:23:04,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-17 02:23:04,161 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 3 states have internal predecessors, (126), 2 states have call successors, (31), 6 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 347 [2021-11-17 02:23:04,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:23:04,204 INFO L225 Difference]: With dead ends: 24695 [2021-11-17 02:23:04,205 INFO L226 Difference]: Without dead ends: 13494 [2021-11-17 02:23:04,226 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-17 02:23:04,227 INFO L933 BasicCegarLoop]: 5176 mSDtfsCounter, 6867 mSDsluCounter, 8587 mSDsCounter, 0 mSdLazyCounter, 8523 mSolverCounterSat, 3749 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7151 SdHoareTripleChecker+Valid, 13763 SdHoareTripleChecker+Invalid, 12274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3749 IncrementalHoareTripleChecker+Valid, 8523 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.0s IncrementalHoareTripleChecker+Time [2021-11-17 02:23:04,227 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7151 Valid, 13763 Invalid, 12274 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3749 Valid, 8523 Invalid, 2 Unknown, 0 Unchecked, 22.0s Time] [2021-11-17 02:23:04,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13494 states. [2021-11-17 02:23:04,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13494 to 11236. [2021-11-17 02:23:04,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11236 states, 8467 states have (on average 1.4719499232313689) internal successors, (12463), 8819 states have internal predecessors, (12463), 2247 states have call successors, (2247), 525 states have call predecessors, (2247), 521 states have return successors, (2237), 2090 states have call predecessors, (2237), 2237 states have call successors, (2237) [2021-11-17 02:23:04,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11236 states to 11236 states and 16947 transitions. [2021-11-17 02:23:04,620 INFO L78 Accepts]: Start accepts. Automaton has 11236 states and 16947 transitions. Word has length 347 [2021-11-17 02:23:04,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:23:04,620 INFO L470 AbstractCegarLoop]: Abstraction has 11236 states and 16947 transitions. [2021-11-17 02:23:04,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 3 states have internal predecessors, (126), 2 states have call successors, (31), 6 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-11-17 02:23:04,621 INFO L276 IsEmpty]: Start isEmpty. Operand 11236 states and 16947 transitions. [2021-11-17 02:23:04,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2021-11-17 02:23:04,639 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:23:04,639 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 02:23:04,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-17 02:23:04,639 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:23:04,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:23:04,640 INFO L85 PathProgramCache]: Analyzing trace with hash 2113661729, now seen corresponding path program 1 times [2021-11-17 02:23:04,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 02:23:04,640 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634215411] [2021-11-17 02:23:04,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:23:04,640 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 02:23:04,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:04,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:23:04,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:04,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:23:04,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:04,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:23:04,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:04,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 02:23:04,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:04,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:23:04,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:04,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:23:04,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:04,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 02:23:04,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:04,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:23:04,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:04,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:23:04,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:04,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 02:23:04,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:04,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:23:04,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:04,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:23:04,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:04,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 02:23:04,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:04,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:23:04,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:04,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:23:04,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:04,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 02:23:04,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:04,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:23:04,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:04,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:23:04,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:04,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-17 02:23:04,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:04,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:23:04,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:04,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 02:23:04,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:04,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:23:04,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:04,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 02:23:04,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:04,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:23:04,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:04,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-17 02:23:05,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:05,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:23:05,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:05,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 02:23:05,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:05,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:23:05,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:05,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 02:23:05,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:05,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:23:05,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:05,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-17 02:23:05,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:05,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:23:05,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:05,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-17 02:23:05,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:05,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-11-17 02:23:05,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:05,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-11-17 02:23:05,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:05,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:23:05,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:05,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:23:05,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:05,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-11-17 02:23:05,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:05,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:23:05,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:05,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:23:05,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:05,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2021-11-17 02:23:05,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:05,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-11-17 02:23:05,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:05,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2021-11-17 02:23:05,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:05,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-11-17 02:23:05,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:05,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2021-11-17 02:23:05,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:05,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-11-17 02:23:05,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:05,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2021-11-17 02:23:05,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:05,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2021-11-17 02:23:05,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:05,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2021-11-17 02:23:05,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:05,150 INFO L134 CoverageAnalysis]: Checked inductivity of 629 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 618 trivial. 0 not checked. [2021-11-17 02:23:05,150 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 02:23:05,151 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634215411] [2021-11-17 02:23:05,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634215411] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 02:23:05,151 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [428786969] [2021-11-17 02:23:05,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:23:05,151 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 02:23:05,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 02:23:05,179 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 02:23:05,184 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-17 02:23:07,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:07,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 5085 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-17 02:23:07,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 02:23:08,023 INFO L134 CoverageAnalysis]: Checked inductivity of 629 backedges. 174 proven. 1 refuted. 0 times theorem prover too weak. 454 trivial. 0 not checked. [2021-11-17 02:23:08,023 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-17 02:23:08,629 INFO L134 CoverageAnalysis]: Checked inductivity of 629 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 618 trivial. 0 not checked. [2021-11-17 02:23:08,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [428786969] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-17 02:23:08,629 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-17 02:23:08,630 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2021-11-17 02:23:08,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457948822] [2021-11-17 02:23:08,630 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-17 02:23:08,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-17 02:23:08,631 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 02:23:08,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-17 02:23:08,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-11-17 02:23:08,631 INFO L87 Difference]: Start difference. First operand 11236 states and 16947 transitions. Second operand has 11 states, 11 states have (on average 15.090909090909092) internal successors, (166), 7 states have internal predecessors, (166), 2 states have call successors, (64), 6 states have call predecessors, (64), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-17 02:23:10,689 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:23:12,835 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:23:14,981 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:23:20,192 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-17 02:23:35,277 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:23:37,316 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:23:39,440 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:23:52,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:23:52,165 INFO L93 Difference]: Finished difference Result 24743 states and 37877 transitions. [2021-11-17 02:23:52,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-17 02:23:52,166 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.090909090909092) internal successors, (166), 7 states have internal predecessors, (166), 2 states have call successors, (64), 6 states have call predecessors, (64), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 351 [2021-11-17 02:23:52,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:23:52,212 INFO L225 Difference]: With dead ends: 24743 [2021-11-17 02:23:52,213 INFO L226 Difference]: Without dead ends: 13536 [2021-11-17 02:23:52,238 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 808 GetRequests, 796 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2021-11-17 02:23:52,239 INFO L933 BasicCegarLoop]: 5184 mSDtfsCounter, 6446 mSDsluCounter, 19696 mSDsCounter, 0 mSdLazyCounter, 19522 mSolverCounterSat, 3643 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6733 SdHoareTripleChecker+Valid, 24880 SdHoareTripleChecker+Invalid, 23170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3643 IncrementalHoareTripleChecker+Valid, 19522 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.6s IncrementalHoareTripleChecker+Time [2021-11-17 02:23:52,239 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6733 Valid, 24880 Invalid, 23170 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3643 Valid, 19522 Invalid, 5 Unknown, 0 Unchecked, 42.6s Time] [2021-11-17 02:23:52,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13536 states. [2021-11-17 02:23:52,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13536 to 11278. [2021-11-17 02:23:52,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11278 states, 8509 states have (on average 1.4710306734046303) internal successors, (12517), 8861 states have internal predecessors, (12517), 2247 states have call successors, (2247), 525 states have call predecessors, (2247), 521 states have return successors, (2237), 2090 states have call predecessors, (2237), 2237 states have call successors, (2237) [2021-11-17 02:23:52,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11278 states to 11278 states and 17001 transitions. [2021-11-17 02:23:52,761 INFO L78 Accepts]: Start accepts. Automaton has 11278 states and 17001 transitions. Word has length 351 [2021-11-17 02:23:52,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:23:52,762 INFO L470 AbstractCegarLoop]: Abstraction has 11278 states and 17001 transitions. [2021-11-17 02:23:52,762 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.090909090909092) internal successors, (166), 7 states have internal predecessors, (166), 2 states have call successors, (64), 6 states have call predecessors, (64), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-17 02:23:52,762 INFO L276 IsEmpty]: Start isEmpty. Operand 11278 states and 17001 transitions. [2021-11-17 02:23:52,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2021-11-17 02:23:52,777 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:23:52,778 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 02:23:52,808 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-17 02:23:52,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-11-17 02:23:52,992 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:23:52,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:23:52,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1502838906, now seen corresponding path program 2 times [2021-11-17 02:23:52,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 02:23:52,994 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884404191] [2021-11-17 02:23:52,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:23:52,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 02:23:53,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:53,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:23:53,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:53,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:23:53,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:53,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:23:53,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:53,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 02:23:53,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:53,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:23:53,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:53,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:23:53,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:53,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 02:23:53,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:53,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:23:53,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:53,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:23:53,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:53,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 02:23:53,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:53,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:23:53,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:53,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:23:53,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:53,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 02:23:53,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:53,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:23:53,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:53,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:23:53,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:53,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 02:23:53,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:53,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:23:53,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:53,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:23:53,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:53,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-17 02:23:53,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:53,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:23:53,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:53,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 02:23:53,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:53,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:23:53,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:53,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 02:23:53,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:53,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:23:53,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:53,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-17 02:23:53,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:53,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:23:53,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:53,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 02:23:53,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:53,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:23:53,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:53,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 02:23:53,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:53,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:23:53,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:53,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-17 02:23:53,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:53,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:23:53,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:53,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-17 02:23:53,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:53,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-11-17 02:23:53,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:53,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-11-17 02:23:53,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:53,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:23:53,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:53,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:23:53,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:53,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-11-17 02:23:53,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:53,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:23:53,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:53,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:23:53,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:53,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-11-17 02:23:53,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:53,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2021-11-17 02:23:53,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:53,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2021-11-17 02:23:53,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:53,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-11-17 02:23:53,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:53,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2021-11-17 02:23:53,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:53,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2021-11-17 02:23:53,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:53,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2021-11-17 02:23:53,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:53,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2021-11-17 02:23:53,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:53,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2021-11-17 02:23:53,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:23:53,788 INFO L134 CoverageAnalysis]: Checked inductivity of 634 backedges. 4 proven. 42 refuted. 0 times theorem prover too weak. 588 trivial. 0 not checked. [2021-11-17 02:23:53,788 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 02:23:53,788 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884404191] [2021-11-17 02:23:53,788 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884404191] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 02:23:53,789 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [246983255] [2021-11-17 02:23:53,789 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-17 02:23:53,789 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 02:23:53,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 02:23:53,790 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) [2021-11-17 02:23:53,791 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-17 02:24:03,781 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-17 02:24:03,781 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-17 02:24:03,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 5094 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-17 02:24:03,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 02:24:04,548 INFO L134 CoverageAnalysis]: Checked inductivity of 634 backedges. 222 proven. 0 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked. [2021-11-17 02:24:04,548 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 02:24:04,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [246983255] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 02:24:04,548 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-17 02:24:04,548 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 12 [2021-11-17 02:24:04,548 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357572000] [2021-11-17 02:24:04,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 02:24:04,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 02:24:04,549 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 02:24:04,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 02:24:04,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-11-17 02:24:04,549 INFO L87 Difference]: Start difference. First operand 11278 states and 17001 transitions. Second operand has 6 states, 5 states have (on average 28.6) internal successors, (143), 6 states have internal predecessors, (143), 3 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2021-11-17 02:24:05,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:24:05,214 INFO L93 Difference]: Finished difference Result 22576 states and 34160 transitions. [2021-11-17 02:24:05,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 02:24:05,215 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 28.6) internal successors, (143), 6 states have internal predecessors, (143), 3 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 355 [2021-11-17 02:24:05,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:24:05,263 INFO L225 Difference]: With dead ends: 22576 [2021-11-17 02:24:05,264 INFO L226 Difference]: Without dead ends: 11292 [2021-11-17 02:24:05,442 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 458 GetRequests, 445 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2021-11-17 02:24:05,446 INFO L933 BasicCegarLoop]: 5868 mSDtfsCounter, 6 mSDsluCounter, 23404 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 29272 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-17 02:24:05,446 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 29272 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-17 02:24:05,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11292 states. [2021-11-17 02:24:05,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11292 to 11292. [2021-11-17 02:24:05,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11292 states, 8519 states have (on average 1.4709472942833666) internal successors, (12531), 8875 states have internal predecessors, (12531), 2247 states have call successors, (2247), 525 states have call predecessors, (2247), 525 states have return successors, (2250), 2090 states have call predecessors, (2250), 2237 states have call successors, (2250) [2021-11-17 02:24:05,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11292 states to 11292 states and 17028 transitions. [2021-11-17 02:24:05,800 INFO L78 Accepts]: Start accepts. Automaton has 11292 states and 17028 transitions. Word has length 355 [2021-11-17 02:24:05,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:24:05,801 INFO L470 AbstractCegarLoop]: Abstraction has 11292 states and 17028 transitions. [2021-11-17 02:24:05,801 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 28.6) internal successors, (143), 6 states have internal predecessors, (143), 3 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2021-11-17 02:24:05,801 INFO L276 IsEmpty]: Start isEmpty. Operand 11292 states and 17028 transitions. [2021-11-17 02:24:05,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2021-11-17 02:24:05,820 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:24:05,820 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 02:24:05,847 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-17 02:24:06,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-11-17 02:24:06,038 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:24:06,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:24:06,038 INFO L85 PathProgramCache]: Analyzing trace with hash -574795615, now seen corresponding path program 1 times [2021-11-17 02:24:06,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 02:24:06,038 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584085023] [2021-11-17 02:24:06,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:24:06,038 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 02:24:06,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:24:06,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:24:06,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:24:06,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:24:06,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:24:06,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:24:06,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:24:06,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 02:24:06,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:24:06,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:24:06,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:24:06,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:24:06,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:24:06,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 02:24:06,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:24:06,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:24:06,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:24:06,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:24:06,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:24:06,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 02:24:06,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:24:06,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:24:06,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:24:06,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:24:06,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:24:06,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 02:24:06,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:24:06,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:24:06,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:24:06,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:24:06,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:24:06,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 02:24:06,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:24:06,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:24:06,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:24:06,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:24:06,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:24:07,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-17 02:24:07,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:24:07,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:24:07,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:24:07,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-11-17 02:24:07,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:24:07,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:24:07,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:24:07,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-17 02:24:07,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:24:07,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:24:07,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:24:07,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 02:24:07,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:24:07,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:24:07,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:24:07,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 02:24:07,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:24:07,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:24:07,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:24:07,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-17 02:24:07,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:24:07,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:24:07,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:24:07,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-17 02:24:07,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:24:07,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:24:07,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:24:07,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-11-17 02:24:07,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:24:07,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-17 02:24:07,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:24:07,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-11-17 02:24:07,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:24:07,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:24:07,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:24:07,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:24:07,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:24:07,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-11-17 02:24:07,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:24:07,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:24:07,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:24:07,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:24:07,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:24:07,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2021-11-17 02:24:07,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:24:07,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2021-11-17 02:24:07,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:24:07,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2021-11-17 02:24:07,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:24:07,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2021-11-17 02:24:07,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:24:07,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2021-11-17 02:24:07,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:24:07,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2021-11-17 02:24:07,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:24:07,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2021-11-17 02:24:07,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:24:07,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2021-11-17 02:24:07,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:24:07,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2021-11-17 02:24:07,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:24:07,323 INFO L134 CoverageAnalysis]: Checked inductivity of 704 backedges. 4 proven. 61 refuted. 0 times theorem prover too weak. 639 trivial. 0 not checked. [2021-11-17 02:24:07,323 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 02:24:07,323 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584085023] [2021-11-17 02:24:07,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584085023] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 02:24:07,323 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [163689568] [2021-11-17 02:24:07,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:24:07,324 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 02:24:07,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 02:24:07,325 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) [2021-11-17 02:24:07,326 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-17 02:24:09,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:24:10,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 5136 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-17 02:24:10,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 02:24:10,678 INFO L134 CoverageAnalysis]: Checked inductivity of 704 backedges. 240 proven. 1 refuted. 0 times theorem prover too weak. 463 trivial. 0 not checked. [2021-11-17 02:24:10,679 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-17 02:24:11,516 INFO L134 CoverageAnalysis]: Checked inductivity of 704 backedges. 4 proven. 61 refuted. 0 times theorem prover too weak. 639 trivial. 0 not checked. [2021-11-17 02:24:11,516 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [163689568] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-17 02:24:11,516 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-17 02:24:11,516 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 7] total 17 [2021-11-17 02:24:11,516 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938917541] [2021-11-17 02:24:11,516 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-17 02:24:11,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-17 02:24:11,518 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 02:24:11,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-17 02:24:11,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2021-11-17 02:24:11,518 INFO L87 Difference]: Start difference. First operand 11292 states and 17028 transitions. Second operand has 17 states, 15 states have (on average 12.333333333333334) internal successors, (185), 13 states have internal predecessors, (185), 4 states have call successors, (76), 6 states have call predecessors, (76), 6 states have return successors, (55), 4 states have call predecessors, (55), 4 states have call successors, (55) [2021-11-17 02:24:13,604 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:24:15,763 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:24:17,911 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:24:20,063 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:25:00,695 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:25:02,323 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:25:05,255 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:25:06,995 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:25:09,321 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:25:18,751 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-17 02:25:20,842 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-17 02:25:37,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:25:37,432 INFO L93 Difference]: Finished difference Result 24804 states and 37967 transitions. [2021-11-17 02:25:37,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-17 02:25:37,435 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 12.333333333333334) internal successors, (185), 13 states have internal predecessors, (185), 4 states have call successors, (76), 6 states have call predecessors, (76), 6 states have return successors, (55), 4 states have call predecessors, (55), 4 states have call successors, (55) Word has length 362 [2021-11-17 02:25:37,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:25:37,481 INFO L225 Difference]: With dead ends: 24804 [2021-11-17 02:25:37,482 INFO L226 Difference]: Without dead ends: 13506 [2021-11-17 02:25:37,504 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 841 GetRequests, 811 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=154, Invalid=716, Unknown=0, NotChecked=0, Total=870 [2021-11-17 02:25:37,505 INFO L933 BasicCegarLoop]: 5173 mSDtfsCounter, 6391 mSDsluCounter, 31750 mSDsCounter, 0 mSdLazyCounter, 32006 mSolverCounterSat, 3649 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 74.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6684 SdHoareTripleChecker+Valid, 36923 SdHoareTripleChecker+Invalid, 35663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 3649 IncrementalHoareTripleChecker+Valid, 32006 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 84.4s IncrementalHoareTripleChecker+Time [2021-11-17 02:25:37,505 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6684 Valid, 36923 Invalid, 35663 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [3649 Valid, 32006 Invalid, 8 Unknown, 0 Unchecked, 84.4s Time] [2021-11-17 02:25:37,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13506 states. [2021-11-17 02:25:37,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13506 to 11328. [2021-11-17 02:25:37,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11328 states, 8543 states have (on average 1.4700924733700105) internal successors, (12559), 8899 states have internal predecessors, (12559), 2253 states have call successors, (2253), 531 states have call predecessors, (2253), 531 states have return successors, (2256), 2096 states have call predecessors, (2256), 2243 states have call successors, (2256) [2021-11-17 02:25:37,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11328 states to 11328 states and 17068 transitions. [2021-11-17 02:25:37,876 INFO L78 Accepts]: Start accepts. Automaton has 11328 states and 17068 transitions. Word has length 362 [2021-11-17 02:25:37,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:25:37,877 INFO L470 AbstractCegarLoop]: Abstraction has 11328 states and 17068 transitions. [2021-11-17 02:25:37,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 12.333333333333334) internal successors, (185), 13 states have internal predecessors, (185), 4 states have call successors, (76), 6 states have call predecessors, (76), 6 states have return successors, (55), 4 states have call predecessors, (55), 4 states have call successors, (55) [2021-11-17 02:25:37,877 INFO L276 IsEmpty]: Start isEmpty. Operand 11328 states and 17068 transitions. [2021-11-17 02:25:37,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2021-11-17 02:25:37,894 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:25:37,894 INFO L514 BasicCegarLoop]: trace histogram [14, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 02:25:37,926 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-17 02:25:38,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 02:25:38,120 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:25:38,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:25:38,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1417433446, now seen corresponding path program 2 times [2021-11-17 02:25:38,121 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 02:25:38,121 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238433570] [2021-11-17 02:25:38,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:25:38,121 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 02:25:38,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:25:38,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:25:38,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:25:38,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:25:38,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:25:38,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:25:38,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:25:38,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 02:25:38,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:25:38,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:25:38,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:25:38,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:25:38,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:25:38,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 02:25:38,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:25:38,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:25:38,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:25:38,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:25:38,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:25:38,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 02:25:38,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:25:38,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:25:38,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:25:38,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:25:38,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:25:38,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 02:25:38,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:25:38,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:25:38,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:25:38,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:25:38,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:25:38,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 02:25:38,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:25:38,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:25:38,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:25:38,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:25:38,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:25:38,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-17 02:25:38,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:25:38,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:25:38,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:25:39,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-11-17 02:25:39,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:25:39,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:25:39,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:25:39,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-11-17 02:25:39,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:25:39,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:25:39,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:25:39,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-11-17 02:25:39,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:25:39,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:25:39,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:25:39,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-11-17 02:25:39,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:25:39,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:25:39,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:25:39,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 02:25:39,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:25:39,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:25:39,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:25:39,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-17 02:25:39,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:25:39,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:25:39,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:25:39,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-17 02:25:39,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:25:39,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-11-17 02:25:39,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:25:39,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-11-17 02:25:39,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:25:39,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:25:39,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:25:39,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:25:39,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:25:39,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-11-17 02:25:39,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:25:39,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:25:39,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:25:39,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:25:39,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:25:39,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-11-17 02:25:39,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:25:39,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2021-11-17 02:25:39,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:25:39,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-11-17 02:25:39,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:25:39,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2021-11-17 02:25:39,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:25:39,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2021-11-17 02:25:39,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:25:39,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2021-11-17 02:25:39,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:25:39,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2021-11-17 02:25:39,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:25:39,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2021-11-17 02:25:39,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:25:39,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2021-11-17 02:25:39,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:25:39,221 INFO L134 CoverageAnalysis]: Checked inductivity of 823 backedges. 4 proven. 93 refuted. 0 times theorem prover too weak. 726 trivial. 0 not checked. [2021-11-17 02:25:39,221 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 02:25:39,221 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238433570] [2021-11-17 02:25:39,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238433570] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 02:25:39,221 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [560637351] [2021-11-17 02:25:39,222 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-17 02:25:39,222 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 02:25:39,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 02:25:39,223 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) [2021-11-17 02:25:39,287 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process Killed by 15