./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 c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-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 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-18 05:37:20,342 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-18 05:37:20,344 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-18 05:37:20,395 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-18 05:37:20,395 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-18 05:37:20,396 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-18 05:37:20,397 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-18 05:37:20,398 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-18 05:37:20,399 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-18 05:37:20,400 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-18 05:37:20,401 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-18 05:37:20,408 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-18 05:37:20,409 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-18 05:37:20,410 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-18 05:37:20,412 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-18 05:37:20,413 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-18 05:37:20,416 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-18 05:37:20,418 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-18 05:37:20,420 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-18 05:37:20,422 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-18 05:37:20,425 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-18 05:37:20,429 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-18 05:37:20,430 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-18 05:37:20,430 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-18 05:37:20,432 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-18 05:37:20,432 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-18 05:37:20,433 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-18 05:37:20,433 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-18 05:37:20,433 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-18 05:37:20,434 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-18 05:37:20,434 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-18 05:37:20,435 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-18 05:37:20,435 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-18 05:37:20,436 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-18 05:37:20,436 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-18 05:37:20,437 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-18 05:37:20,437 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-18 05:37:20,437 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-18 05:37:20,437 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-18 05:37:20,438 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-18 05:37:20,439 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-18 05:37:20,439 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-18 05:37:20,457 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-18 05:37:20,459 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-18 05:37:20,460 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-18 05:37:20,460 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-18 05:37:20,461 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-18 05:37:20,461 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-18 05:37:20,462 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-18 05:37:20,462 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-18 05:37:20,462 INFO L138 SettingsManager]: * Use SBE=true [2021-12-18 05:37:20,462 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-18 05:37:20,463 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-18 05:37:20,463 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-18 05:37:20,463 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-18 05:37:20,464 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-18 05:37:20,464 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-18 05:37:20,464 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-18 05:37:20,464 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-18 05:37:20,464 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-18 05:37:20,464 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-18 05:37:20,465 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-18 05:37:20,465 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-18 05:37:20,465 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 05:37:20,465 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-18 05:37:20,465 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-18 05:37:20,465 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-18 05:37:20,465 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-18 05:37:20,466 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-18 05:37:20,466 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-18 05:37:20,466 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-18 05:37:20,466 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-18 05:37:20,466 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-18 05:37:20,466 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d13c8fd602d503a5b89ef19dbfdd96987c0182e1babba89942a78b68f80ba8e9 [2021-12-18 05:37:20,643 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-18 05:37:20,668 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-18 05:37:20,670 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-18 05:37:20,671 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-18 05:37:20,674 INFO L275 PluginConnector]: CDTParser initialized [2021-12-18 05:37:20,675 INFO L432 ainManager$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 [2021-12-18 05:37:20,745 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/682053aff/f17a9af3457445358411c978645d6678/FLAG48bcc3e47 [2021-12-18 05:37:21,436 INFO L306 CDTParser]: Found 1 translation units. [2021-12-18 05:37:21,437 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 [2021-12-18 05:37:21,477 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/682053aff/f17a9af3457445358411c978645d6678/FLAG48bcc3e47 [2021-12-18 05:37:21,534 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/682053aff/f17a9af3457445358411c978645d6678 [2021-12-18 05:37:21,537 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-18 05:37:21,539 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-18 05:37:21,540 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-18 05:37:21,541 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-18 05:37:21,543 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-18 05:37:21,543 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 05:37:21" (1/1) ... [2021-12-18 05:37:21,544 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a21533a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:37:21, skipping insertion in model container [2021-12-18 05:37:21,544 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 05:37:21" (1/1) ... [2021-12-18 05:37:21,548 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-18 05:37:21,664 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-18 05:37:23,330 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] [2021-12-18 05:37:23,400 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 05:37:23,448 INFO L203 MainTranslator]: Completed pre-run [2021-12-18 05:37:23,757 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] [2021-12-18 05:37:23,763 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 05:37:23,881 INFO L208 MainTranslator]: Completed translation [2021-12-18 05:37:23,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:37:23 WrapperNode [2021-12-18 05:37:23,883 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-18 05:37:23,883 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-18 05:37:23,884 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-18 05:37:23,884 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-18 05:37:23,889 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:37:23" (1/1) ... [2021-12-18 05:37:24,006 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:37:23" (1/1) ... [2021-12-18 05:37:24,285 INFO L137 Inliner]: procedures = 425, calls = 5273, calls flagged for inlining = 151, calls inlined = 134, statements flattened = 10143 [2021-12-18 05:37:24,286 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-18 05:37:24,286 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-18 05:37:24,286 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-18 05:37:24,287 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-18 05:37:24,293 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:37:23" (1/1) ... [2021-12-18 05:37:24,293 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:37:23" (1/1) ... [2021-12-18 05:37:24,363 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:37:23" (1/1) ... [2021-12-18 05:37:24,364 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:37:23" (1/1) ... [2021-12-18 05:37:24,532 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:37:23" (1/1) ... [2021-12-18 05:37:24,565 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:37:23" (1/1) ... [2021-12-18 05:37:24,598 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:37:23" (1/1) ... [2021-12-18 05:37:24,639 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-18 05:37:24,640 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-18 05:37:24,640 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-18 05:37:24,640 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-18 05:37:24,641 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:37:23" (1/1) ... [2021-12-18 05:37:24,646 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 05:37:24,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 05:37:24,663 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-18 05:37:24,685 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-18 05:37:24,697 INFO L130 BoogieDeclarations]: Found specification of procedure timer_open [2021-12-18 05:37:24,698 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_open [2021-12-18 05:37:24,698 INFO L130 BoogieDeclarations]: Found specification of procedure poll_def_tmr [2021-12-18 05:37:24,698 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_def_tmr [2021-12-18 05:37:24,698 INFO L130 BoogieDeclarations]: Found specification of procedure timer_event [2021-12-18 05:37:24,698 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_event [2021-12-18 05:37:24,698 INFO L130 BoogieDeclarations]: Found specification of procedure default_set_channels [2021-12-18 05:37:24,699 INFO L138 BoogieDeclarations]: Found implementation of procedure default_set_channels [2021-12-18 05:37:24,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-18 05:37:24,699 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-18 05:37:24,699 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-12-18 05:37:24,699 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-12-18 05:37:24,699 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-18 05:37:24,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-18 05:37:24,699 INFO L130 BoogieDeclarations]: Found specification of procedure dma_reset_output [2021-12-18 05:37:24,700 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_reset_output [2021-12-18 05:37:24,700 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~X~int~TO~int [2021-12-18 05:37:24,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~X~int~TO~int [2021-12-18 05:37:24,700 INFO L130 BoogieDeclarations]: Found specification of procedure seq_input_event [2021-12-18 05:37:24,700 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_input_event [2021-12-18 05:37:24,700 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_release [2021-12-18 05:37:24,700 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_release [2021-12-18 05:37:24,700 INFO L130 BoogieDeclarations]: Found specification of procedure local_start_dma [2021-12-18 05:37:24,701 INFO L138 BoogieDeclarations]: Found implementation of procedure local_start_dma [2021-12-18 05:37:24,701 INFO L130 BoogieDeclarations]: Found specification of procedure translate_bytes [2021-12-18 05:37:24,701 INFO L138 BoogieDeclarations]: Found implementation of procedure translate_bytes [2021-12-18 05:37:24,701 INFO L130 BoogieDeclarations]: Found specification of procedure __put_user_bad [2021-12-18 05:37:24,701 INFO L130 BoogieDeclarations]: Found specification of procedure seq_copy_to_input [2021-12-18 05:37:24,701 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_copy_to_input [2021-12-18 05:37:24,701 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-18 05:37:24,701 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-18 05:37:24,702 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_sync [2021-12-18 05:37:24,702 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_sync [2021-12-18 05:37:24,702 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~X~$Pointer$~TO~int [2021-12-18 05:37:24,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~X~$Pointer$~TO~int [2021-12-18 05:37:24,702 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_launch_output [2021-12-18 05:37:24,702 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_launch_output [2021-12-18 05:37:24,703 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-18 05:37:24,703 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-18 05:37:24,703 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_soundcard_mutex [2021-12-18 05:37:24,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_soundcard_mutex [2021-12-18 05:37:24,703 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-18 05:37:24,703 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-18 05:37:24,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-18 05:37:24,704 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_space_in_queue [2021-12-18 05:37:24,704 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_space_in_queue [2021-12-18 05:37:24,704 INFO L130 BoogieDeclarations]: Found specification of procedure timer_get_time [2021-12-18 05:37:24,704 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_get_time [2021-12-18 05:37:24,704 INFO L130 BoogieDeclarations]: Found specification of procedure enable_dma [2021-12-18 05:37:24,704 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_dma [2021-12-18 05:37:24,704 INFO L130 BoogieDeclarations]: Found specification of procedure timer_ioctl [2021-12-18 05:37:24,705 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_ioctl [2021-12-18 05:37:24,705 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-18 05:37:24,705 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-18 05:37:24,705 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-12-18 05:37:24,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-12-18 05:37:24,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-18 05:37:24,706 INFO L130 BoogieDeclarations]: Found specification of procedure sound_mixer_ioctl [2021-12-18 05:37:24,706 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_mixer_ioctl [2021-12-18 05:37:24,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-18 05:37:24,707 INFO L130 BoogieDeclarations]: Found specification of procedure midi_poll [2021-12-18 05:37:24,707 INFO L138 BoogieDeclarations]: Found implementation of procedure midi_poll [2021-12-18 05:37:24,707 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_arm [2021-12-18 05:37:24,707 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_arm [2021-12-18 05:37:24,707 INFO L130 BoogieDeclarations]: Found specification of procedure dma_subdivide [2021-12-18 05:37:24,707 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_subdivide [2021-12-18 05:37:24,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-18 05:37:24,708 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_activate_recording [2021-12-18 05:37:24,708 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_activate_recording [2021-12-18 05:37:24,708 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-18 05:37:24,708 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-18 05:37:24,708 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user [2021-12-18 05:37:24,708 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user [2021-12-18 05:37:24,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-18 05:37:24,709 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-18 05:37:24,709 INFO L130 BoogieDeclarations]: Found specification of procedure seq_sync [2021-12-18 05:37:24,709 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_sync [2021-12-18 05:37:24,709 INFO L130 BoogieDeclarations]: Found specification of procedure default_set_bits [2021-12-18 05:37:24,709 INFO L138 BoogieDeclarations]: Found implementation of procedure default_set_bits [2021-12-18 05:37:24,709 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_sound_special [2021-12-18 05:37:24,710 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_sound_special [2021-12-18 05:37:24,710 INFO L130 BoogieDeclarations]: Found specification of procedure close_dmap [2021-12-18 05:37:24,710 INFO L138 BoogieDeclarations]: Found implementation of procedure close_dmap [2021-12-18 05:37:24,710 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_close [2021-12-18 05:37:24,710 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_close [2021-12-18 05:37:24,710 INFO L130 BoogieDeclarations]: Found specification of procedure __get_user_bad [2021-12-18 05:37:24,710 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2021-12-18 05:37:24,710 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2021-12-18 05:37:24,711 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-12-18 05:37:24,711 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-12-18 05:37:24,711 INFO L130 BoogieDeclarations]: Found specification of procedure timer_arm [2021-12-18 05:37:24,711 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_arm [2021-12-18 05:37:24,711 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-18 05:37:24,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-18 05:37:24,712 INFO L130 BoogieDeclarations]: Found specification of procedure register_sound_special [2021-12-18 05:37:24,712 INFO L138 BoogieDeclarations]: Found implementation of procedure register_sound_special [2021-12-18 05:37:24,712 INFO L130 BoogieDeclarations]: Found specification of procedure sound_mmap [2021-12-18 05:37:24,712 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_mmap [2021-12-18 05:37:24,713 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_phys [2021-12-18 05:37:24,713 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_phys [2021-12-18 05:37:24,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-18 05:37:24,713 INFO L130 BoogieDeclarations]: Found specification of procedure claim_dma_lock [2021-12-18 05:37:24,713 INFO L138 BoogieDeclarations]: Found implementation of procedure claim_dma_lock [2021-12-18 05:37:24,714 INFO L130 BoogieDeclarations]: Found specification of procedure timer_close [2021-12-18 05:37:24,714 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_close [2021-12-18 05:37:24,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-18 05:37:24,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-18 05:37:24,714 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-18 05:37:24,714 INFO L130 BoogieDeclarations]: Found specification of procedure dma_reset_input [2021-12-18 05:37:24,714 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_reset_input [2021-12-18 05:37:24,714 INFO L130 BoogieDeclarations]: Found specification of procedure interruptible_sleep_on_timeout [2021-12-18 05:37:24,714 INFO L138 BoogieDeclarations]: Found implementation of procedure interruptible_sleep_on_timeout [2021-12-18 05:37:24,715 INFO L130 BoogieDeclarations]: Found specification of procedure set_format [2021-12-18 05:37:24,715 INFO L138 BoogieDeclarations]: Found implementation of procedure set_format [2021-12-18 05:37:24,715 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_reset [2021-12-18 05:37:24,715 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_reset [2021-12-18 05:37:24,715 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2021-12-18 05:37:24,716 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2021-12-18 05:37:24,716 INFO L130 BoogieDeclarations]: Found specification of procedure seq_reset [2021-12-18 05:37:24,718 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_reset [2021-12-18 05:37:24,718 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2021-12-18 05:37:24,718 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2021-12-18 05:37:24,718 INFO L130 BoogieDeclarations]: Found specification of procedure seq_drain_midi_queues [2021-12-18 05:37:24,719 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_drain_midi_queues [2021-12-18 05:37:24,719 INFO L130 BoogieDeclarations]: Found specification of procedure dma_ioctl [2021-12-18 05:37:24,719 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_ioctl [2021-12-18 05:37:24,719 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_soundcard_mutex [2021-12-18 05:37:24,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_soundcard_mutex [2021-12-18 05:37:24,723 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2021-12-18 05:37:24,723 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2021-12-18 05:37:24,724 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~X~int~X~int~TO~int [2021-12-18 05:37:24,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~X~int~X~int~TO~int [2021-12-18 05:37:24,724 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~VOID [2021-12-18 05:37:24,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~VOID [2021-12-18 05:37:24,724 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2021-12-18 05:37:24,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2021-12-18 05:37:24,724 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_dereference [2021-12-18 05:37:24,724 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_dereference [2021-12-18 05:37:24,724 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-12-18 05:37:24,725 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-12-18 05:37:24,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-18 05:37:24,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-18 05:37:24,725 INFO L130 BoogieDeclarations]: Found specification of procedure seq_startplay [2021-12-18 05:37:24,725 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_startplay [2021-12-18 05:37:24,725 INFO L130 BoogieDeclarations]: Found specification of procedure clear_dma_ff [2021-12-18 05:37:24,725 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_dma_ff [2021-12-18 05:37:24,725 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~X~int~TO~VOID [2021-12-18 05:37:24,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~X~int~TO~VOID [2021-12-18 05:37:24,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2021-12-18 05:37:24,726 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2021-12-18 05:37:24,726 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~X~$Pointer$~X~$Pointer$~TO~int [2021-12-18 05:37:24,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~X~$Pointer$~X~$Pointer$~TO~int [2021-12-18 05:37:24,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-18 05:37:24,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-18 05:37:24,726 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-18 05:37:24,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-18 05:37:24,726 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-18 05:37:24,726 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-18 05:37:24,727 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-12-18 05:37:24,727 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~TO~int [2021-12-18 05:37:24,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~TO~int [2021-12-18 05:37:24,727 INFO L130 BoogieDeclarations]: Found specification of procedure translate_mode [2021-12-18 05:37:24,727 INFO L138 BoogieDeclarations]: Found implementation of procedure translate_mode [2021-12-18 05:37:24,727 INFO L130 BoogieDeclarations]: Found specification of procedure try_module_get___0 [2021-12-18 05:37:24,727 INFO L138 BoogieDeclarations]: Found implementation of procedure try_module_get___0 [2021-12-18 05:37:24,727 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_move_wrpointer [2021-12-18 05:37:24,727 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_move_wrpointer [2021-12-18 05:37:24,728 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-18 05:37:24,728 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-18 05:37:24,728 INFO L130 BoogieDeclarations]: Found specification of procedure tmr_reset [2021-12-18 05:37:24,728 INFO L138 BoogieDeclarations]: Found implementation of procedure tmr_reset [2021-12-18 05:37:24,728 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-18 05:37:24,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-18 05:37:24,728 INFO L130 BoogieDeclarations]: Found specification of procedure sound_stop_timer [2021-12-18 05:37:24,728 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_stop_timer [2021-12-18 05:37:24,728 INFO L130 BoogieDeclarations]: Found specification of procedure tmr2ticks___0 [2021-12-18 05:37:24,729 INFO L138 BoogieDeclarations]: Found implementation of procedure tmr2ticks___0 [2021-12-18 05:37:24,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-18 05:37:24,729 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-18 05:37:24,729 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-18 05:37:24,729 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-18 05:37:24,729 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2021-12-18 05:37:24,729 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2021-12-18 05:37:24,729 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-18 05:37:24,729 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-18 05:37:24,730 INFO L130 BoogieDeclarations]: Found specification of procedure tmr_reset___0 [2021-12-18 05:37:24,730 INFO L138 BoogieDeclarations]: Found implementation of procedure tmr_reset___0 [2021-12-18 05:37:24,730 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~X~int~X~int~TO~VOID [2021-12-18 05:37:24,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~X~int~X~int~TO~VOID [2021-12-18 05:37:24,730 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2021-12-18 05:37:24,730 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2021-12-18 05:37:24,730 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held [2021-12-18 05:37:24,730 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held [2021-12-18 05:37:24,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-18 05:37:24,730 INFO L130 BoogieDeclarations]: Found specification of procedure sound_free_dmap [2021-12-18 05:37:24,731 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_free_dmap [2021-12-18 05:37:24,731 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2021-12-18 05:37:24,731 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2021-12-18 05:37:24,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-18 05:37:24,731 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-12-18 05:37:24,731 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-12-18 05:37:24,731 INFO L130 BoogieDeclarations]: Found specification of procedure reprogram_timer [2021-12-18 05:37:24,731 INFO L138 BoogieDeclarations]: Found implementation of procedure reprogram_timer [2021-12-18 05:37:24,731 INFO L130 BoogieDeclarations]: Found specification of procedure midi_outc___0 [2021-12-18 05:37:24,732 INFO L138 BoogieDeclarations]: Found implementation of procedure midi_outc___0 [2021-12-18 05:37:24,732 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2021-12-18 05:37:24,732 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2021-12-18 05:37:24,732 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~int [2021-12-18 05:37:24,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~int [2021-12-18 05:37:24,732 INFO L130 BoogieDeclarations]: Found specification of procedure dmabuf_timeout [2021-12-18 05:37:24,732 INFO L138 BoogieDeclarations]: Found implementation of procedure dmabuf_timeout [2021-12-18 05:37:24,732 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info___0 [2021-12-18 05:37:24,732 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info___0 [2021-12-18 05:37:24,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-18 05:37:24,733 INFO L130 BoogieDeclarations]: Found specification of procedure module_is_live [2021-12-18 05:37:24,733 INFO L138 BoogieDeclarations]: Found implementation of procedure module_is_live [2021-12-18 05:37:24,733 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-12-18 05:37:24,733 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-12-18 05:37:24,733 INFO L130 BoogieDeclarations]: Found specification of procedure sound_start_dma [2021-12-18 05:37:24,733 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_start_dma [2021-12-18 05:37:24,733 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_event [2021-12-18 05:37:24,733 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_event [2021-12-18 05:37:24,734 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-18 05:37:24,734 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-18 05:37:24,734 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-12-18 05:37:24,734 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-12-18 05:37:24,734 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_open [2021-12-18 05:37:24,734 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_open [2021-12-18 05:37:24,734 INFO L130 BoogieDeclarations]: Found specification of procedure do_midi_msg [2021-12-18 05:37:24,734 INFO L138 BoogieDeclarations]: Found implementation of procedure do_midi_msg [2021-12-18 05:37:24,734 INFO L130 BoogieDeclarations]: Found specification of procedure interruptible_sleep_on [2021-12-18 05:37:24,734 INFO L138 BoogieDeclarations]: Found implementation of procedure interruptible_sleep_on [2021-12-18 05:37:24,735 INFO L130 BoogieDeclarations]: Found specification of procedure waitqueue_active [2021-12-18 05:37:24,735 INFO L138 BoogieDeclarations]: Found implementation of procedure waitqueue_active [2021-12-18 05:37:24,735 INFO L130 BoogieDeclarations]: Found specification of procedure sound_alloc_dmap [2021-12-18 05:37:24,735 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_alloc_dmap [2021-12-18 05:37:24,735 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_fragment [2021-12-18 05:37:24,735 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_fragment [2021-12-18 05:37:24,735 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_get_time [2021-12-18 05:37:24,735 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_get_time [2021-12-18 05:37:24,735 INFO L130 BoogieDeclarations]: Found specification of procedure sequencer_timer [2021-12-18 05:37:24,736 INFO L138 BoogieDeclarations]: Found implementation of procedure sequencer_timer [2021-12-18 05:37:24,736 INFO L130 BoogieDeclarations]: Found specification of procedure default_set_speed [2021-12-18 05:37:24,736 INFO L138 BoogieDeclarations]: Found implementation of procedure default_set_speed [2021-12-18 05:37:24,736 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2021-12-18 05:37:24,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2021-12-18 05:37:24,739 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_residue [2021-12-18 05:37:24,739 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_residue [2021-12-18 05:37:24,739 INFO L130 BoogieDeclarations]: Found specification of procedure sync_output [2021-12-18 05:37:24,739 INFO L138 BoogieDeclarations]: Found implementation of procedure sync_output [2021-12-18 05:37:24,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-18 05:37:24,740 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-18 05:37:24,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-18 05:37:24,740 INFO L130 BoogieDeclarations]: Found specification of procedure copy_user_generic [2021-12-18 05:37:24,740 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_user_generic [2021-12-18 05:37:24,741 INFO L130 BoogieDeclarations]: Found specification of procedure open_dmap [2021-12-18 05:37:24,741 INFO L138 BoogieDeclarations]: Found implementation of procedure open_dmap [2021-12-18 05:37:24,741 INFO L130 BoogieDeclarations]: Found specification of procedure release_dma_lock [2021-12-18 05:37:24,741 INFO L138 BoogieDeclarations]: Found implementation of procedure release_dma_lock [2021-12-18 05:37:24,741 INFO L130 BoogieDeclarations]: Found specification of procedure vmalloc [2021-12-18 05:37:24,741 INFO L138 BoogieDeclarations]: Found implementation of procedure vmalloc [2021-12-18 05:37:24,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-18 05:37:24,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-18 05:37:24,742 INFO L130 BoogieDeclarations]: Found specification of procedure sound_poll [2021-12-18 05:37:24,742 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_poll [2021-12-18 05:37:24,742 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-12-18 05:37:24,742 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-12-18 05:37:24,742 INFO L130 BoogieDeclarations]: Found specification of procedure do_sequencer_timer [2021-12-18 05:37:24,742 INFO L138 BoogieDeclarations]: Found implementation of procedure do_sequencer_timer [2021-12-18 05:37:24,742 INFO L130 BoogieDeclarations]: Found specification of procedure disable_dma [2021-12-18 05:37:24,742 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_dma [2021-12-18 05:37:24,743 INFO L130 BoogieDeclarations]: Found specification of procedure tmr2ticks [2021-12-18 05:37:24,743 INFO L138 BoogieDeclarations]: Found implementation of procedure tmr2ticks [2021-12-18 05:37:24,743 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2021-12-18 05:37:24,743 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2021-12-18 05:37:24,743 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-12-18 05:37:24,743 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-12-18 05:37:24,743 INFO L130 BoogieDeclarations]: Found specification of procedure request_sound_timer [2021-12-18 05:37:24,743 INFO L138 BoogieDeclarations]: Found implementation of procedure request_sound_timer [2021-12-18 05:37:24,743 INFO L130 BoogieDeclarations]: Found specification of procedure DMAbuf_get_buffer_pointer [2021-12-18 05:37:24,743 INFO L138 BoogieDeclarations]: Found implementation of procedure DMAbuf_get_buffer_pointer [2021-12-18 05:37:24,744 INFO L130 BoogieDeclarations]: Found specification of procedure sound_write [2021-12-18 05:37:24,744 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_write [2021-12-18 05:37:24,744 INFO L130 BoogieDeclarations]: Found specification of procedure play_event [2021-12-18 05:37:24,744 INFO L138 BoogieDeclarations]: Found implementation of procedure play_event [2021-12-18 05:37:24,744 INFO L130 BoogieDeclarations]: Found specification of procedure reorganize_buffers [2021-12-18 05:37:24,744 INFO L138 BoogieDeclarations]: Found implementation of procedure reorganize_buffers [2021-12-18 05:37:24,744 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-18 05:37:24,744 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-18 05:37:24,744 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-12-18 05:37:24,744 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-12-18 05:37:24,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-18 05:37:24,745 INFO L130 BoogieDeclarations]: Found specification of procedure def_tmr_ioctl [2021-12-18 05:37:24,745 INFO L138 BoogieDeclarations]: Found implementation of procedure def_tmr_ioctl [2021-12-18 05:37:25,584 INFO L236 CfgBuilder]: Building ICFG [2021-12-18 05:37:25,587 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-18 05:37:25,897 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-18 05:37:25,955 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3834: assume 0 != ~tmp___1~2;#res := ~ret~3; [2021-12-18 05:37:25,956 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3834: assume !(0 != ~tmp___1~2);#res := ~ret~3; [2021-12-18 05:37:25,956 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3801: havoc #t~switch120; [2021-12-18 05:37:25,956 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3830: assume #t~switch120; [2021-12-18 05:37:25,956 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3830: assume !#t~switch120;#t~switch120 := true; [2021-12-18 05:37:25,956 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3822: assume 0 != ~tmp___0~8;#res := ~ret~3; [2021-12-18 05:37:25,956 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3822: assume !(0 != ~tmp___0~8);#res := ~ret~3; [2021-12-18 05:37:25,957 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3818: assume #t~switch120; [2021-12-18 05:37:25,957 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3818: assume !#t~switch120;#t~switch120 := #t~switch120 || 16 == ~size; [2021-12-18 05:37:25,957 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1: assume #t~switch120;#res := ~ret~3; [2021-12-18 05:37:25,957 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3814: assume #t~switch120;#res := ~ret~3; [2021-12-18 05:37:25,957 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3814: assume !#t~switch120;#t~switch120 := #t~switch120 || 10 == ~size; [2021-12-18 05:37:25,957 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2: assume !#t~switch120;#t~switch120 := #t~switch120 || 2 == ~size; [2021-12-18 05:37:25,957 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3810: assume #t~switch120;#res := ~ret~3; [2021-12-18 05:37:25,957 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3810: assume !#t~switch120;#t~switch120 := #t~switch120 || 8 == ~size; [2021-12-18 05:37:25,957 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); [2021-12-18 05:37:25,958 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 [2021-12-18 05:37:25,958 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3806: assume #t~switch120;#res := ~ret~3; [2021-12-18 05:37:25,958 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3806: assume !#t~switch120;#t~switch120 := #t~switch120 || 4 == ~size; [2021-12-18 05:37:25,958 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3833-1: assume -9223372036854775808 <= #t~ret122 && #t~ret122 <= 9223372036854775807;~tmp___1~2 := #t~ret122;havoc #t~ret122; [2021-12-18 05:37:25,959 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 [2021-12-18 05:37:25,959 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3821-1: assume -9223372036854775808 <= #t~ret121 && #t~ret121 <= 9223372036854775807;~tmp___0~8 := #t~ret121;havoc #t~ret121; [2021-12-18 05:37:25,959 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 [2021-12-18 05:37:25,959 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3842: assume #t~switch120; [2021-12-18 05:37:25,959 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3842: assume !#t~switch120; [2021-12-18 05:37:33,261 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3736: havoc __copy_from_user_#t~switch115#1; [2021-12-18 05:37:33,261 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; [2021-12-18 05:37:33,261 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; [2021-12-18 05:37:33,261 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; [2021-12-18 05:37:33,261 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; [2021-12-18 05:37:33,261 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; [2021-12-18 05:37:33,261 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; [2021-12-18 05:37:33,261 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3757: assume __copy_from_user_#t~switch115#1; [2021-12-18 05:37:33,261 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; [2021-12-18 05:37:33,261 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; [2021-12-18 05:37:33,262 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 [2021-12-18 05:37:33,262 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; [2021-12-18 05:37:33,262 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; [2021-12-18 05:37:33,262 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3770: assume __copy_from_user_#t~switch115#1; [2021-12-18 05:37:33,262 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3770: assume !__copy_from_user_#t~switch115#1;__copy_from_user_#t~switch115#1 := true; [2021-12-18 05:37:33,262 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 [2021-12-18 05:37:33,262 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; [2021-12-18 05:37:33,262 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; [2021-12-18 05:37:33,262 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; [2021-12-18 05:37:33,262 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3783: assume __copy_from_user_#t~switch115#1; [2021-12-18 05:37:33,262 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L3783: assume !__copy_from_user_#t~switch115#1; [2021-12-18 05:37:33,262 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 [2021-12-18 05:37:33,262 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); [2021-12-18 05:37:33,262 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; [2021-12-18 05:37:33,262 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; [2021-12-18 05:37:33,324 INFO L277 CfgBuilder]: Performing block encoding [2021-12-18 05:37:33,347 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-18 05:37:33,348 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-18 05:37:33,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 05:37:33 BoogieIcfgContainer [2021-12-18 05:37:33,351 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-18 05:37:33,352 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-18 05:37:33,352 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-18 05:37:33,354 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-18 05:37:33,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 05:37:21" (1/3) ... [2021-12-18 05:37:33,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5902354d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 05:37:33, skipping insertion in model container [2021-12-18 05:37:33,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:37:23" (2/3) ... [2021-12-18 05:37:33,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5902354d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 05:37:33, skipping insertion in model container [2021-12-18 05:37:33,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 05:37:33" (3/3) ... [2021-12-18 05:37:33,356 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-torvalds-645ef9e-32_7a-sound--oss--sound.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-12-18 05:37:33,359 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-18 05:37:33,360 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-18 05:37:33,408 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-18 05:37:33,416 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-18 05:37:33,417 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-18 05:37:33,522 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) [2021-12-18 05:37:33,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2021-12-18 05:37:33,530 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:37:33,531 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] [2021-12-18 05:37:33,531 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:37:33,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:37:33,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1391587723, now seen corresponding path program 1 times [2021-12-18 05:37:33,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 05:37:33,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061669354] [2021-12-18 05:37:33,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:37:33,542 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 05:37:33,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:37:34,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:37:34,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:37:34,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:37:34,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:37:34,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:37:34,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:37:34,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 05:37:34,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:37:34,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:37:34,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:37:34,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:37:34,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:37:34,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 05:37:34,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:37:34,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:37:34,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:37:34,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:37:34,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:37:34,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 05:37:34,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:37:34,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:37:34,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:37:34,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:37:34,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:37:34,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 05:37:34,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:37:34,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:37:34,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:37:34,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:37:34,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:37:34,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 05:37:34,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:37:34,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:37:34,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:37:34,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:37:34,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:37:34,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-18 05:37:34,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:37:34,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:37:34,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:37:34,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-18 05:37:34,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:37:34,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:37:34,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:37:34,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-18 05:37:34,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:37:34,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:37:34,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:37:34,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-18 05:37:34,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:37:34,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:37:34,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:37:34,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-18 05:37:34,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:37:34,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:37:34,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:37:34,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-18 05:37:34,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:37:34,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:37:34,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:37:34,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-18 05:37:34,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:37:34,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:37:34,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:37:34,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-18 05:37:34,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:37:34,417 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2021-12-18 05:37:34,419 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 05:37:34,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061669354] [2021-12-18 05:37:34,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061669354] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 05:37:34,420 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 05:37:34,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 05:37:34,421 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536250765] [2021-12-18 05:37:34,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 05:37:34,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 05:37:34,425 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 05:37:34,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 05:37:34,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 05:37:34,455 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) [2021-12-18 05:37:44,312 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:37:45,876 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:37:49,243 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 05:37:52,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:37:52,316 INFO L93 Difference]: Finished difference Result 8367 states and 13217 transitions. [2021-12-18 05:37:52,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-18 05:37:52,323 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 [2021-12-18 05:37:52,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:37:52,377 INFO L225 Difference]: With dead ends: 8367 [2021-12-18 05:37:52,377 INFO L226 Difference]: Without dead ends: 4519 [2021-12-18 05:37:52,399 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 [2021-12-18 05:37:52,402 INFO L933 BasicCegarLoop]: 5469 mSDtfsCounter, 3639 mSDsluCounter, 7436 mSDsCounter, 0 mSdLazyCounter, 4577 mSolverCounterSat, 2308 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3690 SdHoareTripleChecker+Valid, 12905 SdHoareTripleChecker+Invalid, 6887 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2308 IncrementalHoareTripleChecker+Valid, 4577 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.3s IncrementalHoareTripleChecker+Time [2021-12-18 05:37:52,403 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3690 Valid, 12905 Invalid, 6887 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2308 Valid, 4577 Invalid, 2 Unknown, 0 Unchecked, 17.3s Time] [2021-12-18 05:37:52,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4519 states. [2021-12-18 05:37:52,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4519 to 3823. [2021-12-18 05:37:52,592 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) [2021-12-18 05:37:52,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3823 states to 3823 states and 5910 transitions. [2021-12-18 05:37:52,616 INFO L78 Accepts]: Start accepts. Automaton has 3823 states and 5910 transitions. Word has length 192 [2021-12-18 05:37:52,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:37:52,616 INFO L470 AbstractCegarLoop]: Abstraction has 3823 states and 5910 transitions. [2021-12-18 05:37:52,617 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) [2021-12-18 05:37:52,617 INFO L276 IsEmpty]: Start isEmpty. Operand 3823 states and 5910 transitions. [2021-12-18 05:37:52,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2021-12-18 05:37:52,621 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:37:52,621 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] [2021-12-18 05:37:52,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-18 05:37:52,622 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:37:52,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:37:52,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1053851753, now seen corresponding path program 1 times [2021-12-18 05:37:52,622 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 05:37:52,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594548041] [2021-12-18 05:37:52,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:37:52,624 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 05:37:52,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:37:52,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:37:52,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:37:52,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:37:52,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:37:52,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:37:52,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:37:52,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 05:37:52,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:37:52,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:37:52,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:37:52,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:37:52,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:37:52,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 05:37:52,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:37:52,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:37:52,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:37:52,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:37:52,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:37:52,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 05:37:52,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:37:52,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:37:52,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:37:52,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:37:52,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:37:52,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 05:37:52,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:37:52,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:37:52,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:37:52,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:37:52,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:37:52,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 05:37:52,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:37:52,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:37:52,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:37:52,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:37:52,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:37:52,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-18 05:37:52,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:37:52,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:37:52,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:37:52,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-18 05:37:53,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:37:53,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:37:53,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:37:53,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-18 05:37:53,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:37:53,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:37:53,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:37:53,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-18 05:37:53,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:37:53,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:37:53,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:37:53,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-18 05:37:53,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:37:53,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:37:53,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:37:53,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-18 05:37:53,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:37:53,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:37:53,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:37:53,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-18 05:37:53,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:37:53,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:37:53,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:37:53,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-18 05:37:53,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:37:53,072 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2021-12-18 05:37:53,072 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 05:37:53,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594548041] [2021-12-18 05:37:53,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594548041] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 05:37:53,073 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 05:37:53,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 05:37:53,073 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684869288] [2021-12-18 05:37:53,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 05:37:53,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 05:37:53,075 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 05:37:53,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 05:37:53,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-18 05:37:53,075 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) [2021-12-18 05:38:01,958 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:38:05,032 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 05:38:06,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:38:06,949 INFO L93 Difference]: Finished difference Result 9651 states and 15121 transitions. [2021-12-18 05:38:06,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 05:38:06,950 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 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 [2021-12-18 05:38:06,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:38:06,980 INFO L225 Difference]: With dead ends: 9651 [2021-12-18 05:38:06,980 INFO L226 Difference]: Without dead ends: 5857 [2021-12-18 05:38:06,993 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 [2021-12-18 05:38:06,994 INFO L933 BasicCegarLoop]: 5652 mSDtfsCounter, 9663 mSDsluCounter, 7684 mSDsCounter, 0 mSdLazyCounter, 3690 mSolverCounterSat, 4668 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9832 SdHoareTripleChecker+Valid, 13336 SdHoareTripleChecker+Invalid, 8359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4668 IncrementalHoareTripleChecker+Valid, 3690 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.4s IncrementalHoareTripleChecker+Time [2021-12-18 05:38:06,994 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9832 Valid, 13336 Invalid, 8359 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4668 Valid, 3690 Invalid, 1 Unknown, 0 Unchecked, 13.4s Time] [2021-12-18 05:38:07,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5857 states. [2021-12-18 05:38:07,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5857 to 4938. [2021-12-18 05:38:07,134 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) [2021-12-18 05:38:07,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4938 states to 4938 states and 7580 transitions. [2021-12-18 05:38:07,153 INFO L78 Accepts]: Start accepts. Automaton has 4938 states and 7580 transitions. Word has length 192 [2021-12-18 05:38:07,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:38:07,154 INFO L470 AbstractCegarLoop]: Abstraction has 4938 states and 7580 transitions. [2021-12-18 05:38:07,155 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) [2021-12-18 05:38:07,155 INFO L276 IsEmpty]: Start isEmpty. Operand 4938 states and 7580 transitions. [2021-12-18 05:38:07,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2021-12-18 05:38:07,159 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:38:07,159 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] [2021-12-18 05:38:07,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-18 05:38:07,159 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:38:07,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:38:07,160 INFO L85 PathProgramCache]: Analyzing trace with hash 1833513696, now seen corresponding path program 1 times [2021-12-18 05:38:07,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 05:38:07,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59313164] [2021-12-18 05:38:07,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:38:07,160 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 05:38:07,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:07,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:38:07,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:07,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:38:07,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:07,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:38:07,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:07,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 05:38:07,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:07,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:38:07,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:07,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:38:07,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:07,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 05:38:07,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:07,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:38:07,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:07,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:38:07,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:07,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 05:38:07,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:07,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:38:07,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:07,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:38:07,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:07,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 05:38:07,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:07,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:38:07,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:07,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:38:07,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:07,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 05:38:07,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:07,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:38:07,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:07,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:38:07,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:07,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-18 05:38:07,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:07,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:38:07,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:07,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-18 05:38:07,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:07,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:38:07,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:07,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-18 05:38:07,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:07,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:38:07,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:07,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-18 05:38:07,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:07,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:38:07,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:07,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-18 05:38:07,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:07,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:38:07,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:07,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-18 05:38:07,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:07,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:38:07,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:07,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-18 05:38:07,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:07,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:38:07,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:07,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-18 05:38:07,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:07,661 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2021-12-18 05:38:07,661 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 05:38:07,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59313164] [2021-12-18 05:38:07,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59313164] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 05:38:07,663 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 05:38:07,663 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 05:38:07,663 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356816602] [2021-12-18 05:38:07,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 05:38:07,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 05:38:07,664 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 05:38:07,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 05:38:07,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-18 05:38:07,665 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) [2021-12-18 05:38:17,249 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:38:20,636 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 05:38:22,725 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 05:38:25,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:38:25,128 INFO L93 Difference]: Finished difference Result 10758 states and 16782 transitions. [2021-12-18 05:38:25,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 05:38:25,129 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 [2021-12-18 05:38:25,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:38:25,161 INFO L225 Difference]: With dead ends: 10758 [2021-12-18 05:38:25,161 INFO L226 Difference]: Without dead ends: 5849 [2021-12-18 05:38:25,180 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 [2021-12-18 05:38:25,181 INFO L933 BasicCegarLoop]: 5414 mSDtfsCounter, 9793 mSDsluCounter, 5005 mSDsCounter, 0 mSdLazyCounter, 3322 mSolverCounterSat, 3166 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10291 SdHoareTripleChecker+Valid, 10419 SdHoareTripleChecker+Invalid, 6491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3166 IncrementalHoareTripleChecker+Valid, 3322 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.1s IncrementalHoareTripleChecker+Time [2021-12-18 05:38:25,182 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10291 Valid, 10419 Invalid, 6491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3166 Valid, 3322 Invalid, 3 Unknown, 0 Unchecked, 17.1s Time] [2021-12-18 05:38:25,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5849 states. [2021-12-18 05:38:25,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5849 to 4938. [2021-12-18 05:38:25,386 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) [2021-12-18 05:38:25,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4938 states to 4938 states and 7578 transitions. [2021-12-18 05:38:25,404 INFO L78 Accepts]: Start accepts. Automaton has 4938 states and 7578 transitions. Word has length 202 [2021-12-18 05:38:25,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:38:25,405 INFO L470 AbstractCegarLoop]: Abstraction has 4938 states and 7578 transitions. [2021-12-18 05:38:25,405 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) [2021-12-18 05:38:25,405 INFO L276 IsEmpty]: Start isEmpty. Operand 4938 states and 7578 transitions. [2021-12-18 05:38:25,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2021-12-18 05:38:25,408 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:38:25,409 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] [2021-12-18 05:38:25,409 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-18 05:38:25,409 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:38:25,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:38:25,412 INFO L85 PathProgramCache]: Analyzing trace with hash 245165794, now seen corresponding path program 1 times [2021-12-18 05:38:25,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 05:38:25,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42589377] [2021-12-18 05:38:25,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:38:25,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 05:38:25,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:25,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:38:25,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:25,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:38:25,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:25,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:38:25,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:25,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 05:38:25,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:25,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:38:25,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:25,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:38:25,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:25,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 05:38:25,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:25,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:38:25,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:25,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:38:25,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:25,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 05:38:25,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:25,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:38:25,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:25,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:38:25,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:25,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 05:38:25,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:25,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:38:25,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:25,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:38:25,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:25,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 05:38:25,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:25,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:38:25,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:25,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:38:25,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:25,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-18 05:38:25,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:25,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:38:25,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:25,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-18 05:38:25,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:25,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:38:25,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:25,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-18 05:38:25,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:25,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:38:25,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:25,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-18 05:38:25,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:25,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:38:25,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:25,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-18 05:38:25,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:25,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:38:25,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:25,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-18 05:38:25,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:25,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:38:25,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:25,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-18 05:38:25,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:25,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:38:25,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:25,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-18 05:38:25,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:25,840 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2021-12-18 05:38:25,840 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 05:38:25,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42589377] [2021-12-18 05:38:25,841 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42589377] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 05:38:25,841 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 05:38:25,841 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 05:38:25,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122921394] [2021-12-18 05:38:25,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 05:38:25,842 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 05:38:25,842 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 05:38:25,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 05:38:25,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-18 05:38:25,843 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) [2021-12-18 05:38:38,041 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 05:38:40,120 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 05:38:41,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:38:41,934 INFO L93 Difference]: Finished difference Result 5851 states and 9243 transitions. [2021-12-18 05:38:41,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 05:38:41,934 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 [2021-12-18 05:38:41,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:38:41,957 INFO L225 Difference]: With dead ends: 5851 [2021-12-18 05:38:41,957 INFO L226 Difference]: Without dead ends: 5848 [2021-12-18 05:38:41,958 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 [2021-12-18 05:38:41,959 INFO L933 BasicCegarLoop]: 5411 mSDtfsCounter, 9330 mSDsluCounter, 7388 mSDsCounter, 0 mSdLazyCounter, 4605 mSolverCounterSat, 3032 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9836 SdHoareTripleChecker+Valid, 12799 SdHoareTripleChecker+Invalid, 7639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3032 IncrementalHoareTripleChecker+Valid, 4605 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.8s IncrementalHoareTripleChecker+Time [2021-12-18 05:38:41,959 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9836 Valid, 12799 Invalid, 7639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3032 Valid, 4605 Invalid, 2 Unknown, 0 Unchecked, 15.8s Time] [2021-12-18 05:38:41,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5848 states. [2021-12-18 05:38:42,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5848 to 4937. [2021-12-18 05:38:42,070 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) [2021-12-18 05:38:42,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4937 states to 4937 states and 7576 transitions. [2021-12-18 05:38:42,083 INFO L78 Accepts]: Start accepts. Automaton has 4937 states and 7576 transitions. Word has length 202 [2021-12-18 05:38:42,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:38:42,083 INFO L470 AbstractCegarLoop]: Abstraction has 4937 states and 7576 transitions. [2021-12-18 05:38:42,084 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) [2021-12-18 05:38:42,084 INFO L276 IsEmpty]: Start isEmpty. Operand 4937 states and 7576 transitions. [2021-12-18 05:38:42,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2021-12-18 05:38:42,086 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:38:42,086 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] [2021-12-18 05:38:42,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-18 05:38:42,086 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:38:42,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:38:42,087 INFO L85 PathProgramCache]: Analyzing trace with hash -990907888, now seen corresponding path program 1 times [2021-12-18 05:38:42,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 05:38:42,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960541314] [2021-12-18 05:38:42,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:38:42,087 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 05:38:42,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:42,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:38:42,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:42,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:38:42,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:42,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:38:42,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:42,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 05:38:42,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:42,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:38:42,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:42,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:38:42,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:42,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 05:38:42,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:42,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:38:42,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:42,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:38:42,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:42,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 05:38:42,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:42,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:38:42,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:42,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:38:42,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:42,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 05:38:42,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:42,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:38:42,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:42,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:38:42,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:42,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 05:38:42,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:42,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:38:42,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:42,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:38:42,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:42,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-18 05:38:42,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:42,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:38:42,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:42,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-18 05:38:42,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:42,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:38:42,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:42,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-18 05:38:42,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:42,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:38:42,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:42,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-18 05:38:42,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:42,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:38:42,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:42,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-18 05:38:42,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:42,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:38:42,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:42,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-18 05:38:42,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:42,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:38:42,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:42,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-18 05:38:42,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:42,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:38:42,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:42,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-18 05:38:42,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:38:42,401 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2021-12-18 05:38:42,401 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 05:38:42,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960541314] [2021-12-18 05:38:42,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960541314] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 05:38:42,401 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 05:38:42,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 05:38:42,402 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039389739] [2021-12-18 05:38:42,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 05:38:42,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 05:38:42,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 05:38:42,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 05:38:42,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-18 05:38:42,403 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) [2021-12-18 05:38:52,701 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 05:38:54,917 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:39:00,160 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 05:39:02,239 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 05:39:03,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:39:03,750 INFO L93 Difference]: Finished difference Result 9115 states and 14234 transitions. [2021-12-18 05:39:03,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 05:39:03,752 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 [2021-12-18 05:39:03,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:39:03,818 INFO L225 Difference]: With dead ends: 9115 [2021-12-18 05:39:03,819 INFO L226 Difference]: Without dead ends: 9027 [2021-12-18 05:39:03,827 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 [2021-12-18 05:39:03,831 INFO L933 BasicCegarLoop]: 6030 mSDtfsCounter, 8309 mSDsluCounter, 9999 mSDsCounter, 0 mSdLazyCounter, 5427 mSolverCounterSat, 3716 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8532 SdHoareTripleChecker+Valid, 16029 SdHoareTripleChecker+Invalid, 9147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3716 IncrementalHoareTripleChecker+Valid, 5427 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.9s IncrementalHoareTripleChecker+Time [2021-12-18 05:39:03,832 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8532 Valid, 16029 Invalid, 9147 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3716 Valid, 5427 Invalid, 4 Unknown, 0 Unchecked, 20.9s Time] [2021-12-18 05:39:03,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9027 states. [2021-12-18 05:39:04,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9027 to 7623. [2021-12-18 05:39:04,050 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) [2021-12-18 05:39:04,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7623 states to 7623 states and 11608 transitions. [2021-12-18 05:39:04,070 INFO L78 Accepts]: Start accepts. Automaton has 7623 states and 11608 transitions. Word has length 203 [2021-12-18 05:39:04,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:39:04,071 INFO L470 AbstractCegarLoop]: Abstraction has 7623 states and 11608 transitions. [2021-12-18 05:39:04,071 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) [2021-12-18 05:39:04,071 INFO L276 IsEmpty]: Start isEmpty. Operand 7623 states and 11608 transitions. [2021-12-18 05:39:04,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2021-12-18 05:39:04,077 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:39:04,077 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] [2021-12-18 05:39:04,077 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-18 05:39:04,077 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:39:04,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:39:04,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1664573996, now seen corresponding path program 1 times [2021-12-18 05:39:04,078 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 05:39:04,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069176938] [2021-12-18 05:39:04,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:39:04,078 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 05:39:04,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:04,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:39:04,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:04,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:39:04,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:04,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:39:04,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:04,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 05:39:04,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:04,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:39:04,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:04,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:39:04,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:04,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 05:39:04,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:04,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:39:04,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:04,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:39:04,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:04,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 05:39:04,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:04,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:39:04,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:04,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:39:04,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:04,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 05:39:04,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:04,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:39:04,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:04,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:39:04,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:04,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 05:39:04,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:04,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:39:04,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:04,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:39:04,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:04,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-18 05:39:04,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:04,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:39:04,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:04,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-18 05:39:04,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:04,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:39:04,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:04,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-18 05:39:04,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:04,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:39:04,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:04,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-18 05:39:04,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:04,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:39:04,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:04,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-18 05:39:04,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:04,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:39:04,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:04,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-18 05:39:04,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:04,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:39:04,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:04,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-18 05:39:04,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:04,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:39:04,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:04,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-18 05:39:04,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:04,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-18 05:39:04,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:04,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:39:04,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:04,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:39:04,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:04,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-12-18 05:39:04,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:04,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:39:04,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:04,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:39:04,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:04,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-12-18 05:39:04,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:04,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-12-18 05:39:04,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:04,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-12-18 05:39:04,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:04,547 INFO L134 CoverageAnalysis]: Checked inductivity of 583 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2021-12-18 05:39:04,548 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 05:39:04,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069176938] [2021-12-18 05:39:04,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069176938] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 05:39:04,548 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 05:39:04,548 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-18 05:39:04,548 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590239156] [2021-12-18 05:39:04,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 05:39:04,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-18 05:39:04,549 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 05:39:04,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-18 05:39:04,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-12-18 05:39:04,550 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) [2021-12-18 05:39:22,413 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 05:39:24,506 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 05:39:26,605 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 05:39:29,104 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:39:31,214 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:39:33,705 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:39:35,742 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:39:42,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:39:42,081 INFO L93 Difference]: Finished difference Result 16645 states and 25712 transitions. [2021-12-18 05:39:42,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-18 05:39:42,082 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 [2021-12-18 05:39:42,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:39:42,123 INFO L225 Difference]: With dead ends: 16645 [2021-12-18 05:39:42,123 INFO L226 Difference]: Without dead ends: 9033 [2021-12-18 05:39:42,149 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 [2021-12-18 05:39:42,150 INFO L933 BasicCegarLoop]: 5189 mSDtfsCounter, 6445 mSDsluCounter, 19716 mSDsCounter, 0 mSdLazyCounter, 19530 mSolverCounterSat, 3643 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6730 SdHoareTripleChecker+Valid, 24905 SdHoareTripleChecker+Invalid, 23178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3643 IncrementalHoareTripleChecker+Valid, 19530 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.9s IncrementalHoareTripleChecker+Time [2021-12-18 05:39:42,150 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6730 Valid, 24905 Invalid, 23178 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3643 Valid, 19530 Invalid, 5 Unknown, 0 Unchecked, 36.9s Time] [2021-12-18 05:39:42,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9033 states. [2021-12-18 05:39:42,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9033 to 7618. [2021-12-18 05:39:42,426 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) [2021-12-18 05:39:42,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7618 states to 7618 states and 11600 transitions. [2021-12-18 05:39:42,449 INFO L78 Accepts]: Start accepts. Automaton has 7618 states and 11600 transitions. Word has length 268 [2021-12-18 05:39:42,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:39:42,450 INFO L470 AbstractCegarLoop]: Abstraction has 7618 states and 11600 transitions. [2021-12-18 05:39:42,450 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) [2021-12-18 05:39:42,450 INFO L276 IsEmpty]: Start isEmpty. Operand 7618 states and 11600 transitions. [2021-12-18 05:39:42,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2021-12-18 05:39:42,455 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:39:42,456 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] [2021-12-18 05:39:42,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-18 05:39:42,456 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:39:42,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:39:42,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1958206366, now seen corresponding path program 1 times [2021-12-18 05:39:42,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 05:39:42,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113298972] [2021-12-18 05:39:42,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:39:42,457 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 05:39:42,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:42,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:39:42,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:42,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:39:42,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:42,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:39:42,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:42,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 05:39:42,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:42,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:39:42,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:42,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:39:42,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:42,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 05:39:42,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:42,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:39:42,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:42,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:39:42,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:42,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 05:39:42,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:42,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:39:42,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:42,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:39:42,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:42,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 05:39:42,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:42,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:39:42,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:42,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:39:42,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:42,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 05:39:42,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:42,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:39:42,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:42,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:39:42,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:42,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-18 05:39:42,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:42,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:39:42,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:42,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-18 05:39:42,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:42,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:39:42,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:42,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-18 05:39:42,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:42,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:39:42,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:42,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-18 05:39:42,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:42,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:39:42,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:42,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-18 05:39:42,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:42,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:39:42,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:42,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-18 05:39:42,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:42,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:39:42,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:42,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-18 05:39:42,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:42,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:39:42,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:42,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-18 05:39:42,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:42,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-18 05:39:42,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:42,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-18 05:39:42,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:42,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:39:42,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:42,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:39:42,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:42,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-18 05:39:42,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:42,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:39:42,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:42,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:39:42,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:42,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-12-18 05:39:42,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:42,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-12-18 05:39:42,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:42,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-12-18 05:39:42,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:39:42,890 INFO L134 CoverageAnalysis]: Checked inductivity of 586 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 584 trivial. 0 not checked. [2021-12-18 05:39:42,890 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 05:39:42,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113298972] [2021-12-18 05:39:42,890 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113298972] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 05:39:42,890 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 05:39:42,890 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-18 05:39:42,890 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976847519] [2021-12-18 05:39:42,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 05:39:42,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-18 05:39:42,892 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 05:39:42,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-18 05:39:42,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-12-18 05:39:42,893 INFO L87 Difference]: Start difference. First operand 7618 states and 11600 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 4 states have internal predecessors, (82), 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) [2021-12-18 05:39:58,001 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 05:40:00,709 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:40:03,402 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:40:10,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:40:10,022 INFO L93 Difference]: Finished difference Result 16792 states and 25986 transitions. [2021-12-18 05:40:10,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-18 05:40:10,023 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 4 states have internal predecessors, (82), 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 272 [2021-12-18 05:40:10,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:40:10,052 INFO L225 Difference]: With dead ends: 16792 [2021-12-18 05:40:10,053 INFO L226 Difference]: Without dead ends: 9203 [2021-12-18 05:40:10,069 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 [2021-12-18 05:40:10,070 INFO L933 BasicCegarLoop]: 5487 mSDtfsCounter, 9828 mSDsluCounter, 10696 mSDsCounter, 0 mSdLazyCounter, 13804 mSolverCounterSat, 4370 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10111 SdHoareTripleChecker+Valid, 16183 SdHoareTripleChecker+Invalid, 18176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4370 IncrementalHoareTripleChecker+Valid, 13804 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.5s IncrementalHoareTripleChecker+Time [2021-12-18 05:40:10,070 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10111 Valid, 16183 Invalid, 18176 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4370 Valid, 13804 Invalid, 2 Unknown, 0 Unchecked, 26.5s Time] [2021-12-18 05:40:10,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9203 states. [2021-12-18 05:40:10,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9203 to 7618. [2021-12-18 05:40:10,274 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) [2021-12-18 05:40:10,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7618 states to 7618 states and 11596 transitions. [2021-12-18 05:40:10,296 INFO L78 Accepts]: Start accepts. Automaton has 7618 states and 11596 transitions. Word has length 272 [2021-12-18 05:40:10,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:40:10,297 INFO L470 AbstractCegarLoop]: Abstraction has 7618 states and 11596 transitions. [2021-12-18 05:40:10,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 4 states have internal predecessors, (82), 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) [2021-12-18 05:40:10,297 INFO L276 IsEmpty]: Start isEmpty. Operand 7618 states and 11596 transitions. [2021-12-18 05:40:10,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2021-12-18 05:40:10,304 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:40:10,304 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] [2021-12-18 05:40:10,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-18 05:40:10,304 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:40:10,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:40:10,305 INFO L85 PathProgramCache]: Analyzing trace with hash 140764322, now seen corresponding path program 1 times [2021-12-18 05:40:10,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 05:40:10,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684943978] [2021-12-18 05:40:10,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:40:10,305 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 05:40:10,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:10,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:40:10,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:10,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:10,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:10,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:40:10,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:10,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 05:40:10,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:10,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:10,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:10,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:40:10,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:10,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 05:40:10,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:10,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:10,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:10,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:40:10,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:10,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 05:40:10,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:10,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:10,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:10,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:40:10,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:10,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 05:40:10,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:10,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:10,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:10,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:40:10,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:10,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 05:40:10,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:10,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:10,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:10,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:40:10,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:10,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-18 05:40:10,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:10,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:10,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:10,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-18 05:40:10,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:10,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:10,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:10,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-18 05:40:10,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:10,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:10,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:10,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-18 05:40:10,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:10,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:10,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:10,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-18 05:40:10,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:10,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:10,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:10,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-18 05:40:10,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:10,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:10,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:10,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-18 05:40:10,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:10,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:10,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:10,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-18 05:40:10,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:10,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-18 05:40:10,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:10,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-12-18 05:40:10,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:10,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:10,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:10,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:40:10,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:10,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-12-18 05:40:10,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:10,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:10,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:10,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:40:10,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:10,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2021-12-18 05:40:10,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:10,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-12-18 05:40:10,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:10,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2021-12-18 05:40:10,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:10,734 INFO L134 CoverageAnalysis]: Checked inductivity of 586 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 584 trivial. 0 not checked. [2021-12-18 05:40:10,734 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 05:40:10,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684943978] [2021-12-18 05:40:10,734 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684943978] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 05:40:10,735 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 05:40:10,735 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 05:40:10,735 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178378592] [2021-12-18 05:40:10,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 05:40:10,735 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 05:40:10,735 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 05:40:10,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 05:40:10,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-18 05:40:10,736 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) [2021-12-18 05:40:19,074 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 05:40:23,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:40:23,294 INFO L93 Difference]: Finished difference Result 16611 states and 25658 transitions. [2021-12-18 05:40:23,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-18 05:40:23,295 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 [2021-12-18 05:40:23,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:40:23,330 INFO L225 Difference]: With dead ends: 16611 [2021-12-18 05:40:23,330 INFO L226 Difference]: Without dead ends: 9022 [2021-12-18 05:40:23,351 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 [2021-12-18 05:40:23,352 INFO L933 BasicCegarLoop]: 5188 mSDtfsCounter, 13639 mSDsluCounter, 3848 mSDsCounter, 0 mSdLazyCounter, 3757 mSolverCounterSat, 6425 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14060 SdHoareTripleChecker+Valid, 9036 SdHoareTripleChecker+Invalid, 10183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6425 IncrementalHoareTripleChecker+Valid, 3757 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2021-12-18 05:40:23,352 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14060 Valid, 9036 Invalid, 10183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6425 Valid, 3757 Invalid, 1 Unknown, 0 Unchecked, 12.1s Time] [2021-12-18 05:40:23,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9022 states. [2021-12-18 05:40:23,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9022 to 7618. [2021-12-18 05:40:23,608 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) [2021-12-18 05:40:23,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7618 states to 7618 states and 11592 transitions. [2021-12-18 05:40:23,633 INFO L78 Accepts]: Start accepts. Automaton has 7618 states and 11592 transitions. Word has length 276 [2021-12-18 05:40:23,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:40:23,634 INFO L470 AbstractCegarLoop]: Abstraction has 7618 states and 11592 transitions. [2021-12-18 05:40:23,634 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) [2021-12-18 05:40:23,634 INFO L276 IsEmpty]: Start isEmpty. Operand 7618 states and 11592 transitions. [2021-12-18 05:40:23,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2021-12-18 05:40:23,640 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:40:23,640 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] [2021-12-18 05:40:23,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-18 05:40:23,640 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:40:23,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:40:23,641 INFO L85 PathProgramCache]: Analyzing trace with hash -508392981, now seen corresponding path program 1 times [2021-12-18 05:40:23,641 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 05:40:23,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841570064] [2021-12-18 05:40:23,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:40:23,641 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 05:40:23,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:23,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:40:23,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:23,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:23,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:23,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:40:23,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:23,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 05:40:23,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:23,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:23,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:23,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:40:23,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:23,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 05:40:23,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:23,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:23,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:23,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:40:23,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:23,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 05:40:23,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:23,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:23,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:23,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:40:23,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:23,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 05:40:23,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:23,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:23,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:23,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:40:23,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:23,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 05:40:23,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:23,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:23,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:23,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:40:23,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:23,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-18 05:40:23,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:23,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:23,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:23,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-18 05:40:23,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:23,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:23,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:23,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-18 05:40:23,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:23,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:23,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:23,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-18 05:40:23,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:23,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:23,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:23,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-18 05:40:23,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:23,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:23,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:23,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-18 05:40:23,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:23,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:23,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:23,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-18 05:40:23,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:23,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:23,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:23,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-18 05:40:23,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:23,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-18 05:40:23,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:23,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-12-18 05:40:23,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:24,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:24,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:24,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:40:24,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:24,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-12-18 05:40:24,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:24,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:24,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:24,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:40:24,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:24,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-12-18 05:40:24,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:24,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2021-12-18 05:40:24,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:24,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2021-12-18 05:40:24,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:24,042 INFO L134 CoverageAnalysis]: Checked inductivity of 586 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 586 trivial. 0 not checked. [2021-12-18 05:40:24,042 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 05:40:24,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841570064] [2021-12-18 05:40:24,043 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841570064] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 05:40:24,043 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 05:40:24,043 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 05:40:24,043 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093089066] [2021-12-18 05:40:24,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 05:40:24,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 05:40:24,044 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 05:40:24,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 05:40:24,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-18 05:40:24,045 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) [2021-12-18 05:40:39,611 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 05:40:41,703 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 05:40:44,135 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:40:50,778 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 05:40:52,885 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 05:40:54,989 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 05:40:56,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:40:56,506 INFO L93 Difference]: Finished difference Result 16610 states and 25643 transitions. [2021-12-18 05:40:56,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-18 05:40:56,541 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 [2021-12-18 05:40:56,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:40:56,581 INFO L225 Difference]: With dead ends: 16610 [2021-12-18 05:40:56,582 INFO L226 Difference]: Without dead ends: 9021 [2021-12-18 05:40:56,598 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 [2021-12-18 05:40:56,600 INFO L933 BasicCegarLoop]: 6444 mSDtfsCounter, 12285 mSDsluCounter, 6770 mSDsCounter, 0 mSdLazyCounter, 10233 mSolverCounterSat, 6021 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12851 SdHoareTripleChecker+Valid, 13214 SdHoareTripleChecker+Invalid, 16260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6021 IncrementalHoareTripleChecker+Valid, 10233 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.8s IncrementalHoareTripleChecker+Time [2021-12-18 05:40:56,601 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12851 Valid, 13214 Invalid, 16260 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6021 Valid, 10233 Invalid, 6 Unknown, 0 Unchecked, 31.8s Time] [2021-12-18 05:40:56,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9021 states. [2021-12-18 05:40:56,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9021 to 7615. [2021-12-18 05:40:56,814 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) [2021-12-18 05:40:56,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7615 states to 7615 states and 11576 transitions. [2021-12-18 05:40:56,837 INFO L78 Accepts]: Start accepts. Automaton has 7615 states and 11576 transitions. Word has length 275 [2021-12-18 05:40:56,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:40:56,839 INFO L470 AbstractCegarLoop]: Abstraction has 7615 states and 11576 transitions. [2021-12-18 05:40:56,839 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) [2021-12-18 05:40:56,839 INFO L276 IsEmpty]: Start isEmpty. Operand 7615 states and 11576 transitions. [2021-12-18 05:40:56,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2021-12-18 05:40:56,853 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:40:56,854 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] [2021-12-18 05:40:56,854 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-18 05:40:56,854 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:40:56,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:40:56,855 INFO L85 PathProgramCache]: Analyzing trace with hash -1454075083, now seen corresponding path program 1 times [2021-12-18 05:40:56,855 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 05:40:56,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139648130] [2021-12-18 05:40:56,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:40:56,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 05:40:56,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:57,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:40:57,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:57,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:57,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:57,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:40:57,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:57,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 05:40:57,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:57,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:57,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:57,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:40:57,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:57,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 05:40:57,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:57,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:57,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:57,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:40:57,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:57,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 05:40:57,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:57,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:57,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:57,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:40:57,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:57,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 05:40:57,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:57,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:57,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:57,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:40:57,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:57,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 05:40:57,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:57,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:57,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:57,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:40:57,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:57,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-18 05:40:57,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:57,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:57,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:57,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-18 05:40:57,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:57,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:57,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:57,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-18 05:40:57,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:57,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:57,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:57,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-18 05:40:57,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:57,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:57,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:57,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-18 05:40:57,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:57,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:57,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:57,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-18 05:40:57,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:57,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:57,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:57,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-18 05:40:57,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:57,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:57,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:57,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-18 05:40:57,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:57,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-18 05:40:57,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:57,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-12-18 05:40:57,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:57,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:57,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:57,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:40:57,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:57,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-12-18 05:40:57,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:57,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:40:57,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:57,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:40:57,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:57,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2021-12-18 05:40:57,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:57,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-12-18 05:40:57,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:57,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-12-18 05:40:57,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:57,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2021-12-18 05:40:57,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:40:57,262 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 587 trivial. 0 not checked. [2021-12-18 05:40:57,262 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 05:40:57,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139648130] [2021-12-18 05:40:57,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139648130] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 05:40:57,263 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 05:40:57,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 05:40:57,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412338645] [2021-12-18 05:40:57,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 05:40:57,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 05:40:57,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 05:40:57,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 05:40:57,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-18 05:40:57,264 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) [2021-12-18 05:41:11,592 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:41:13,311 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:41:21,401 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 05:41:23,509 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 05:41:25,609 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 05:41:27,707 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 05:41:31,181 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 05:41:33,280 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 05:41:35,375 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 05:41:36,807 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 05:41:41,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:41:41,540 INFO L93 Difference]: Finished difference Result 21047 states and 32424 transitions. [2021-12-18 05:41:41,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-18 05:41:41,541 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 [2021-12-18 05:41:41,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:41:41,593 INFO L225 Difference]: With dead ends: 21047 [2021-12-18 05:41:41,593 INFO L226 Difference]: Without dead ends: 13461 [2021-12-18 05:41:41,673 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 [2021-12-18 05:41:41,673 INFO L933 BasicCegarLoop]: 6884 mSDtfsCounter, 11287 mSDsluCounter, 10598 mSDsCounter, 0 mSdLazyCounter, 13731 mSolverCounterSat, 6354 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11790 SdHoareTripleChecker+Valid, 17482 SdHoareTripleChecker+Invalid, 20092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6354 IncrementalHoareTripleChecker+Valid, 13731 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.4s IncrementalHoareTripleChecker+Time [2021-12-18 05:41:41,674 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11790 Valid, 17482 Invalid, 20092 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6354 Valid, 13731 Invalid, 7 Unknown, 0 Unchecked, 43.4s Time] [2021-12-18 05:41:41,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13461 states. [2021-12-18 05:41:41,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13461 to 11221. [2021-12-18 05:41:41,997 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) [2021-12-18 05:41:42,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11221 states to 11221 states and 16933 transitions. [2021-12-18 05:41:42,035 INFO L78 Accepts]: Start accepts. Automaton has 11221 states and 16933 transitions. Word has length 300 [2021-12-18 05:41:42,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:41:42,036 INFO L470 AbstractCegarLoop]: Abstraction has 11221 states and 16933 transitions. [2021-12-18 05:41:42,036 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) [2021-12-18 05:41:42,036 INFO L276 IsEmpty]: Start isEmpty. Operand 11221 states and 16933 transitions. [2021-12-18 05:41:42,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2021-12-18 05:41:42,056 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:41:42,057 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] [2021-12-18 05:41:42,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-18 05:41:42,057 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:41:42,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:41:42,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1227622379, now seen corresponding path program 1 times [2021-12-18 05:41:42,058 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 05:41:42,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088519117] [2021-12-18 05:41:42,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:41:42,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 05:41:42,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:42,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:41:42,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:42,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:41:42,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:42,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:41:42,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:42,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 05:41:42,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:42,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:41:42,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:42,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:41:42,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:42,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 05:41:42,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:42,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:41:42,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:42,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:41:42,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:42,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 05:41:42,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:42,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:41:42,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:42,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:41:42,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:42,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 05:41:42,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:42,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:41:42,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:42,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:41:42,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:42,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 05:41:42,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:42,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:41:42,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:42,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:41:42,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:42,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-18 05:41:42,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:42,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:41:42,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:42,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-18 05:41:42,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:42,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:41:42,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:42,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-18 05:41:42,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:42,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:41:42,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:42,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-18 05:41:42,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:42,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:41:42,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:42,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-18 05:41:42,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:42,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:41:42,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:42,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-18 05:41:42,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:42,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:41:42,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:42,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-18 05:41:42,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:42,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:41:42,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:42,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-18 05:41:42,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:42,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-18 05:41:42,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:42,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-12-18 05:41:42,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:42,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:41:42,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:42,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:41:42,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:42,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-12-18 05:41:42,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:42,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:41:42,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:42,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:41:42,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:42,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-12-18 05:41:42,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:42,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2021-12-18 05:41:42,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:42,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2021-12-18 05:41:42,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:42,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2021-12-18 05:41:42,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:42,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-12-18 05:41:42,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:41:42,472 INFO L134 CoverageAnalysis]: Checked inductivity of 618 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 600 trivial. 0 not checked. [2021-12-18 05:41:42,472 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 05:41:42,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088519117] [2021-12-18 05:41:42,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088519117] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 05:41:42,473 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 05:41:42,473 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-18 05:41:42,473 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581824388] [2021-12-18 05:41:42,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 05:41:42,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-18 05:41:42,474 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 05:41:42,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-18 05:41:42,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-12-18 05:41:42,475 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) [2021-12-18 05:42:03,380 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:42:05,654 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:42:08,100 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:42:10,145 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:42:12,186 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:42:15,405 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:42:18,618 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 05:42:20,709 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 05:42:23,025 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 05:42:28,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:42:28,591 INFO L93 Difference]: Finished difference Result 29593 states and 45379 transitions. [2021-12-18 05:42:28,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-18 05:42:28,591 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 [2021-12-18 05:42:28,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:42:28,654 INFO L225 Difference]: With dead ends: 29593 [2021-12-18 05:42:28,654 INFO L226 Difference]: Without dead ends: 18401 [2021-12-18 05:42:28,677 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 [2021-12-18 05:42:28,678 INFO L933 BasicCegarLoop]: 8453 mSDtfsCounter, 10425 mSDsluCounter, 15480 mSDsCounter, 0 mSdLazyCounter, 17922 mSolverCounterSat, 6111 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10852 SdHoareTripleChecker+Valid, 23933 SdHoareTripleChecker+Invalid, 24038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6111 IncrementalHoareTripleChecker+Valid, 17922 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.0s IncrementalHoareTripleChecker+Time [2021-12-18 05:42:28,678 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10852 Valid, 23933 Invalid, 24038 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6111 Valid, 17922 Invalid, 5 Unknown, 0 Unchecked, 45.0s Time] [2021-12-18 05:42:28,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18401 states. [2021-12-18 05:42:29,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18401 to 11223. [2021-12-18 05:42:29,042 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) [2021-12-18 05:42:29,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11223 states to 11223 states and 16934 transitions. [2021-12-18 05:42:29,076 INFO L78 Accepts]: Start accepts. Automaton has 11223 states and 16934 transitions. Word has length 316 [2021-12-18 05:42:29,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:42:29,076 INFO L470 AbstractCegarLoop]: Abstraction has 11223 states and 16934 transitions. [2021-12-18 05:42:29,076 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) [2021-12-18 05:42:29,077 INFO L276 IsEmpty]: Start isEmpty. Operand 11223 states and 16934 transitions. [2021-12-18 05:42:29,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2021-12-18 05:42:29,198 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:42:29,199 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] [2021-12-18 05:42:29,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-18 05:42:29,200 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:42:29,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:42:29,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1512775099, now seen corresponding path program 1 times [2021-12-18 05:42:29,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 05:42:29,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707987213] [2021-12-18 05:42:29,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:42:29,201 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 05:42:29,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:29,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:42:29,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:29,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:29,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:29,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:42:29,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:29,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 05:42:29,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:29,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:29,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:29,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:42:29,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:29,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 05:42:29,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:29,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:29,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:29,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:42:29,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:29,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 05:42:29,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:29,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:29,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:29,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:42:29,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:29,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 05:42:29,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:29,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:29,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:29,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:42:29,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:29,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 05:42:29,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:29,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:29,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:29,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:42:29,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:29,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-18 05:42:29,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:29,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:29,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:29,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-18 05:42:29,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:29,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:29,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:29,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-18 05:42:29,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:29,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:29,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:29,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-18 05:42:29,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:29,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:29,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:29,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-18 05:42:29,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:29,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:29,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:29,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-18 05:42:29,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:29,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:29,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:29,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-18 05:42:29,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:29,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:29,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:29,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-18 05:42:29,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:29,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-18 05:42:29,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:29,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-12-18 05:42:29,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:29,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:29,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:29,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:42:29,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:29,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-12-18 05:42:29,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:29,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:29,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:29,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:42:29,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:29,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-12-18 05:42:29,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:29,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-12-18 05:42:29,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:29,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-12-18 05:42:29,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:29,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-12-18 05:42:29,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:29,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-12-18 05:42:29,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:29,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2021-12-18 05:42:29,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:29,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2021-12-18 05:42:29,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:29,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2021-12-18 05:42:29,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:29,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2021-12-18 05:42:29,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:29,513 INFO L134 CoverageAnalysis]: Checked inductivity of 628 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 608 trivial. 0 not checked. [2021-12-18 05:42:29,513 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 05:42:29,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707987213] [2021-12-18 05:42:29,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707987213] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 05:42:29,514 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 05:42:29,514 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 05:42:29,514 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453795209] [2021-12-18 05:42:29,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 05:42:29,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 05:42:29,515 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 05:42:29,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 05:42:29,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-18 05:42:29,515 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) [2021-12-18 05:42:40,125 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:42:45,716 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 05:42:49,640 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.92s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 05:42:54,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:42:54,106 INFO L93 Difference]: Finished difference Result 24640 states and 37745 transitions. [2021-12-18 05:42:54,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-18 05:42:54,107 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 [2021-12-18 05:42:54,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:42:54,207 INFO L225 Difference]: With dead ends: 24640 [2021-12-18 05:42:54,207 INFO L226 Difference]: Without dead ends: 13446 [2021-12-18 05:42:54,227 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-12-18 05:42:54,228 INFO L933 BasicCegarLoop]: 5182 mSDtfsCounter, 6853 mSDsluCounter, 8568 mSDsCounter, 0 mSdLazyCounter, 8513 mSolverCounterSat, 3740 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7140 SdHoareTripleChecker+Valid, 13750 SdHoareTripleChecker+Invalid, 12255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3740 IncrementalHoareTripleChecker+Valid, 8513 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.9s IncrementalHoareTripleChecker+Time [2021-12-18 05:42:54,229 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7140 Valid, 13750 Invalid, 12255 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3740 Valid, 8513 Invalid, 2 Unknown, 0 Unchecked, 23.9s Time] [2021-12-18 05:42:54,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13446 states. [2021-12-18 05:42:54,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13446 to 11224. [2021-12-18 05:42:54,550 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) [2021-12-18 05:42:54,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11224 states to 11224 states and 16935 transitions. [2021-12-18 05:42:54,585 INFO L78 Accepts]: Start accepts. Automaton has 11224 states and 16935 transitions. Word has length 345 [2021-12-18 05:42:54,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:42:54,586 INFO L470 AbstractCegarLoop]: Abstraction has 11224 states and 16935 transitions. [2021-12-18 05:42:54,586 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) [2021-12-18 05:42:54,586 INFO L276 IsEmpty]: Start isEmpty. Operand 11224 states and 16935 transitions. [2021-12-18 05:42:54,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2021-12-18 05:42:54,613 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:42:54,613 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] [2021-12-18 05:42:54,613 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-18 05:42:54,613 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:42:54,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:42:54,614 INFO L85 PathProgramCache]: Analyzing trace with hash -847793526, now seen corresponding path program 1 times [2021-12-18 05:42:54,614 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 05:42:54,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283771143] [2021-12-18 05:42:54,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:42:54,614 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 05:42:54,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:54,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:42:54,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:54,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:54,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:54,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:42:54,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:54,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 05:42:54,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:54,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:54,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:54,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:42:54,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:54,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 05:42:54,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:54,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:54,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:54,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:42:54,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:54,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 05:42:54,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:54,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:54,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:54,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:42:54,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:54,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 05:42:54,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:54,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:54,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:54,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:42:54,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:54,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 05:42:54,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:54,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:54,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:54,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:42:54,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:54,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-18 05:42:54,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:54,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:54,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:54,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-18 05:42:54,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:54,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:54,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:54,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-18 05:42:54,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:54,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:54,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:54,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-18 05:42:54,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:54,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:54,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:54,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-18 05:42:54,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:54,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:54,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:54,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-18 05:42:54,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:54,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:54,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:54,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-18 05:42:54,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:54,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:54,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:54,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-18 05:42:54,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:54,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-18 05:42:54,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:54,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-12-18 05:42:54,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:54,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:54,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:54,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:42:54,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:54,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-12-18 05:42:54,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:54,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:42:54,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:54,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:42:54,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:54,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-12-18 05:42:54,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:54,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-12-18 05:42:54,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:54,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-12-18 05:42:54,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:54,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2021-12-18 05:42:54,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:54,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2021-12-18 05:42:54,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:54,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2021-12-18 05:42:54,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:54,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-12-18 05:42:54,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:54,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2021-12-18 05:42:54,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:54,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2021-12-18 05:42:54,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:42:54,992 INFO L134 CoverageAnalysis]: Checked inductivity of 628 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2021-12-18 05:42:54,993 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 05:42:54,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283771143] [2021-12-18 05:42:54,993 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283771143] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 05:42:54,993 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 05:42:54,993 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 05:42:54,993 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803252868] [2021-12-18 05:42:54,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 05:42:54,994 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 05:42:54,994 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 05:42:54,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 05:42:54,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-18 05:42:54,995 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) [2021-12-18 05:43:05,697 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:43:07,467 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:43:09,514 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:43:14,387 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 05:43:20,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:43:20,795 INFO L93 Difference]: Finished difference Result 26652 states and 41185 transitions. [2021-12-18 05:43:20,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-18 05:43:20,796 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 [2021-12-18 05:43:20,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:43:20,857 INFO L225 Difference]: With dead ends: 26652 [2021-12-18 05:43:20,857 INFO L226 Difference]: Without dead ends: 15457 [2021-12-18 05:43:20,880 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-12-18 05:43:20,881 INFO L933 BasicCegarLoop]: 6557 mSDtfsCounter, 8045 mSDsluCounter, 13126 mSDsCounter, 0 mSdLazyCounter, 11773 mSolverCounterSat, 3648 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8692 SdHoareTripleChecker+Valid, 19683 SdHoareTripleChecker+Invalid, 15423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3648 IncrementalHoareTripleChecker+Valid, 11773 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.9s IncrementalHoareTripleChecker+Time [2021-12-18 05:43:20,881 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8692 Valid, 19683 Invalid, 15423 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3648 Valid, 11773 Invalid, 2 Unknown, 0 Unchecked, 24.9s Time] [2021-12-18 05:43:20,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15457 states. [2021-12-18 05:43:21,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15457 to 11230. [2021-12-18 05:43:21,251 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) [2021-12-18 05:43:21,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11230 states to 11230 states and 16941 transitions. [2021-12-18 05:43:21,284 INFO L78 Accepts]: Start accepts. Automaton has 11230 states and 16941 transitions. Word has length 347 [2021-12-18 05:43:21,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:43:21,285 INFO L470 AbstractCegarLoop]: Abstraction has 11230 states and 16941 transitions. [2021-12-18 05:43:21,285 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) [2021-12-18 05:43:21,285 INFO L276 IsEmpty]: Start isEmpty. Operand 11230 states and 16941 transitions. [2021-12-18 05:43:21,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2021-12-18 05:43:21,305 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:43:21,305 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] [2021-12-18 05:43:21,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-18 05:43:21,305 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:43:21,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:43:21,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1357266616, now seen corresponding path program 1 times [2021-12-18 05:43:21,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 05:43:21,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225750916] [2021-12-18 05:43:21,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:43:21,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 05:43:21,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:21,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:43:21,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:21,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:43:21,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:21,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:43:21,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:21,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 05:43:21,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:21,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:43:21,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:21,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:43:21,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:21,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 05:43:21,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:21,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:43:21,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:21,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:43:21,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:21,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 05:43:21,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:21,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:43:21,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:21,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:43:21,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:21,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 05:43:21,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:21,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:43:21,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:21,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:43:21,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:21,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 05:43:21,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:21,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:43:21,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:21,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:43:21,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:21,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-18 05:43:21,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:21,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:43:21,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:21,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-18 05:43:21,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:21,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:43:21,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:21,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-18 05:43:21,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:21,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:43:21,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:21,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-18 05:43:21,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:21,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:43:21,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:21,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-18 05:43:21,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:21,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:43:21,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:21,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-18 05:43:21,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:21,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:43:21,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:21,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-18 05:43:21,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:21,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:43:21,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:21,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-18 05:43:21,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:21,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-18 05:43:21,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:21,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-12-18 05:43:21,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:21,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:43:21,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:21,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:43:21,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:21,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-12-18 05:43:21,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:21,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:43:21,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:21,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:43:21,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:21,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-12-18 05:43:21,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:21,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-12-18 05:43:21,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:21,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-12-18 05:43:21,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:21,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2021-12-18 05:43:21,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:21,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2021-12-18 05:43:21,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:21,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2021-12-18 05:43:21,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:21,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-12-18 05:43:21,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:21,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2021-12-18 05:43:21,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:21,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2021-12-18 05:43:21,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:21,748 INFO L134 CoverageAnalysis]: Checked inductivity of 628 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 618 trivial. 0 not checked. [2021-12-18 05:43:21,748 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 05:43:21,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225750916] [2021-12-18 05:43:21,749 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225750916] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 05:43:21,749 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 05:43:21,749 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 05:43:21,749 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932929118] [2021-12-18 05:43:21,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 05:43:21,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 05:43:21,750 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 05:43:21,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 05:43:21,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-18 05:43:21,751 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) [2021-12-18 05:43:30,558 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:43:32,585 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:43:38,126 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 05:43:40,232 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 05:43:42,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:43:42,624 INFO L93 Difference]: Finished difference Result 24695 states and 37817 transitions. [2021-12-18 05:43:42,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-18 05:43:42,625 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 [2021-12-18 05:43:42,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:43:42,658 INFO L225 Difference]: With dead ends: 24695 [2021-12-18 05:43:42,658 INFO L226 Difference]: Without dead ends: 13494 [2021-12-18 05:43:42,675 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-12-18 05:43:42,676 INFO L933 BasicCegarLoop]: 5168 mSDtfsCounter, 6867 mSDsluCounter, 8565 mSDsCounter, 0 mSdLazyCounter, 8495 mSolverCounterSat, 3749 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7154 SdHoareTripleChecker+Valid, 13733 SdHoareTripleChecker+Invalid, 12247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3749 IncrementalHoareTripleChecker+Valid, 8495 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.2s IncrementalHoareTripleChecker+Time [2021-12-18 05:43:42,676 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7154 Valid, 13733 Invalid, 12247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3749 Valid, 8495 Invalid, 3 Unknown, 0 Unchecked, 20.2s Time] [2021-12-18 05:43:42,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13494 states. [2021-12-18 05:43:42,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13494 to 11236. [2021-12-18 05:43:42,970 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) [2021-12-18 05:43:42,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11236 states to 11236 states and 16947 transitions. [2021-12-18 05:43:43,001 INFO L78 Accepts]: Start accepts. Automaton has 11236 states and 16947 transitions. Word has length 347 [2021-12-18 05:43:43,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:43:43,001 INFO L470 AbstractCegarLoop]: Abstraction has 11236 states and 16947 transitions. [2021-12-18 05:43:43,002 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) [2021-12-18 05:43:43,002 INFO L276 IsEmpty]: Start isEmpty. Operand 11236 states and 16947 transitions. [2021-12-18 05:43:43,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2021-12-18 05:43:43,019 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:43:43,020 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] [2021-12-18 05:43:43,020 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-18 05:43:43,020 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:43:43,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:43:43,021 INFO L85 PathProgramCache]: Analyzing trace with hash 2113661729, now seen corresponding path program 1 times [2021-12-18 05:43:43,021 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 05:43:43,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454615251] [2021-12-18 05:43:43,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:43:43,021 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 05:43:43,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:43,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:43:43,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:43,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:43:43,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:43,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:43:43,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:43,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 05:43:43,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:43,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:43:43,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:43,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:43:43,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:43,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 05:43:43,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:43,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:43:43,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:43,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:43:43,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:43,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 05:43:43,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:43,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:43:43,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:43,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:43:43,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:43,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 05:43:43,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:43,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:43:43,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:43,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:43:43,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:43,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 05:43:43,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:43,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:43:43,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:43,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:43:43,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:43,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-18 05:43:43,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:43,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:43:43,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:43,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-18 05:43:43,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:43,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:43:43,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:43,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-18 05:43:43,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:43,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:43:43,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:43,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-18 05:43:43,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:43,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:43:43,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:43,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-18 05:43:43,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:43,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:43:43,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:43,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-18 05:43:43,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:43,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:43:43,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:43,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-18 05:43:43,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:43,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:43:43,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:43,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-18 05:43:43,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:43,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-18 05:43:43,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:43,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-12-18 05:43:43,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:43,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:43:43,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:43,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:43:43,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:43,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-12-18 05:43:43,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:43,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:43:43,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:43,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:43:43,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:43,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2021-12-18 05:43:43,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:43,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-12-18 05:43:43,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:43,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2021-12-18 05:43:43,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:43,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-12-18 05:43:43,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:43,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2021-12-18 05:43:43,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:43,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-12-18 05:43:43,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:43,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2021-12-18 05:43:43,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:43,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2021-12-18 05:43:43,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:43,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2021-12-18 05:43:43,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:43,536 INFO L134 CoverageAnalysis]: Checked inductivity of 629 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 618 trivial. 0 not checked. [2021-12-18 05:43:43,536 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 05:43:43,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454615251] [2021-12-18 05:43:43,536 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454615251] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 05:43:43,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1526805309] [2021-12-18 05:43:43,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:43:43,537 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 05:43:43,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 05:43:43,547 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 05:43:43,567 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-18 05:43:44,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:44,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 5287 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-18 05:43:44,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 05:43:45,350 INFO L134 CoverageAnalysis]: Checked inductivity of 629 backedges. 297 proven. 0 refuted. 0 times theorem prover too weak. 332 trivial. 0 not checked. [2021-12-18 05:43:45,350 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 05:43:45,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1526805309] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 05:43:45,350 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 05:43:45,350 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2021-12-18 05:43:45,350 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161924724] [2021-12-18 05:43:45,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 05:43:45,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 05:43:45,351 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 05:43:45,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 05:43:45,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-18 05:43:45,351 INFO L87 Difference]: Start difference. First operand 11236 states and 16947 transitions. Second operand has 6 states, 5 states have (on average 29.8) internal successors, (149), 6 states have internal predecessors, (149), 3 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2021-12-18 05:43:45,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:43:45,965 INFO L93 Difference]: Finished difference Result 22492 states and 34052 transitions. [2021-12-18 05:43:45,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 05:43:45,966 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 29.8) internal successors, (149), 6 states have internal predecessors, (149), 3 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 351 [2021-12-18 05:43:45,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:43:45,999 INFO L225 Difference]: With dead ends: 22492 [2021-12-18 05:43:45,999 INFO L226 Difference]: Without dead ends: 11250 [2021-12-18 05:43:46,020 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 454 GetRequests, 442 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2021-12-18 05:43:46,021 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, 0.2s IncrementalHoareTripleChecker+Time [2021-12-18 05:43:46,021 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 29272 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-18 05:43:46,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11250 states. [2021-12-18 05:43:46,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11250 to 11250. [2021-12-18 05:43:46,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11250 states, 8477 states have (on average 1.4718650465966734) internal successors, (12477), 8833 states have internal predecessors, (12477), 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) [2021-12-18 05:43:46,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11250 states to 11250 states and 16974 transitions. [2021-12-18 05:43:46,374 INFO L78 Accepts]: Start accepts. Automaton has 11250 states and 16974 transitions. Word has length 351 [2021-12-18 05:43:46,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:43:46,374 INFO L470 AbstractCegarLoop]: Abstraction has 11250 states and 16974 transitions. [2021-12-18 05:43:46,375 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 29.8) internal successors, (149), 6 states have internal predecessors, (149), 3 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2021-12-18 05:43:46,375 INFO L276 IsEmpty]: Start isEmpty. Operand 11250 states and 16974 transitions. [2021-12-18 05:43:46,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2021-12-18 05:43:46,387 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:43:46,388 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 05:43:46,414 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-12-18 05:43:46,588 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 [2021-12-18 05:43:46,589 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:43:46,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:43:46,589 INFO L85 PathProgramCache]: Analyzing trace with hash 644474568, now seen corresponding path program 1 times [2021-12-18 05:43:46,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 05:43:46,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743424886] [2021-12-18 05:43:46,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:43:46,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 05:43:46,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:46,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:43:46,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:46,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:43:46,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:46,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:43:46,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:46,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 05:43:46,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:46,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:43:46,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:46,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:43:46,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:46,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 05:43:46,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:46,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:43:46,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:46,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:43:46,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:46,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 05:43:46,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:46,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:43:46,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:46,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:43:46,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:46,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 05:43:46,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:46,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:43:46,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:46,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:43:46,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:46,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 05:43:46,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:46,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:43:46,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:46,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:43:46,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:46,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-18 05:43:46,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:46,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:43:46,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:46,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-18 05:43:46,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:46,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:43:46,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:46,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-18 05:43:46,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:46,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:43:46,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:46,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 05:43:46,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:46,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:43:46,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:46,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 05:43:46,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:46,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:43:46,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:46,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-18 05:43:46,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:46,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:43:46,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:46,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-18 05:43:46,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:46,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:43:46,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:46,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-18 05:43:46,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:46,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-12-18 05:43:46,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:46,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-12-18 05:43:46,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:46,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:43:46,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:46,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:43:46,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:46,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2021-12-18 05:43:46,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:46,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:43:46,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:46,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:43:46,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:46,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-12-18 05:43:46,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:46,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-12-18 05:43:46,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:46,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2021-12-18 05:43:46,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:46,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2021-12-18 05:43:46,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:46,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2021-12-18 05:43:46,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:47,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2021-12-18 05:43:47,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:47,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2021-12-18 05:43:47,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:47,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2021-12-18 05:43:47,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:47,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2021-12-18 05:43:47,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:47,015 INFO L134 CoverageAnalysis]: Checked inductivity of 699 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 688 trivial. 0 not checked. [2021-12-18 05:43:47,016 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 05:43:47,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743424886] [2021-12-18 05:43:47,016 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743424886] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 05:43:47,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1296869255] [2021-12-18 05:43:47,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:43:47,016 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 05:43:47,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 05:43:47,017 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) [2021-12-18 05:43:47,018 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-18 05:43:48,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:43:49,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 5392 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-18 05:43:49,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 05:43:49,463 INFO L134 CoverageAnalysis]: Checked inductivity of 699 backedges. 174 proven. 1 refuted. 0 times theorem prover too weak. 524 trivial. 0 not checked. [2021-12-18 05:43:49,464 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 05:43:50,095 INFO L134 CoverageAnalysis]: Checked inductivity of 699 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 688 trivial. 0 not checked. [2021-12-18 05:43:50,096 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1296869255] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-18 05:43:50,096 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-18 05:43:50,096 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2021-12-18 05:43:50,096 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585082039] [2021-12-18 05:43:50,096 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-18 05:43:50,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-18 05:43:50,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 05:43:50,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-18 05:43:50,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-12-18 05:43:50,098 INFO L87 Difference]: Start difference. First operand 11250 states and 16974 transitions. Second operand has 11 states, 11 states have (on average 15.181818181818182) internal successors, (167), 7 states have internal predecessors, (167), 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) [2021-12-18 05:44:03,059 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:44:05,107 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:44:06,688 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:44:14,158 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 05:44:16,246 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 05:44:18,334 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 05:44:20,419 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 05:44:23,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:44:23,999 INFO L93 Difference]: Finished difference Result 24719 states and 37729 transitions. [2021-12-18 05:44:23,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-18 05:44:24,000 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.181818181818182) internal successors, (167), 7 states have internal predecessors, (167), 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 358 [2021-12-18 05:44:24,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:44:24,054 INFO L225 Difference]: With dead ends: 24719 [2021-12-18 05:44:24,054 INFO L226 Difference]: Without dead ends: 13498 [2021-12-18 05:44:24,078 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 822 GetRequests, 810 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2021-12-18 05:44:24,078 INFO L933 BasicCegarLoop]: 5171 mSDtfsCounter, 6875 mSDsluCounter, 11718 mSDsCounter, 0 mSdLazyCounter, 11434 mSolverCounterSat, 3714 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7162 SdHoareTripleChecker+Valid, 16889 SdHoareTripleChecker+Invalid, 15153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3714 IncrementalHoareTripleChecker+Valid, 11434 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.1s IncrementalHoareTripleChecker+Time [2021-12-18 05:44:24,078 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7162 Valid, 16889 Invalid, 15153 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3714 Valid, 11434 Invalid, 5 Unknown, 0 Unchecked, 33.1s Time] [2021-12-18 05:44:24,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13498 states. [2021-12-18 05:44:24,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13498 to 11292. [2021-12-18 05:44:24,452 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) [2021-12-18 05:44:24,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11292 states to 11292 states and 17028 transitions. [2021-12-18 05:44:24,484 INFO L78 Accepts]: Start accepts. Automaton has 11292 states and 17028 transitions. Word has length 358 [2021-12-18 05:44:24,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:44:24,485 INFO L470 AbstractCegarLoop]: Abstraction has 11292 states and 17028 transitions. [2021-12-18 05:44:24,485 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.181818181818182) internal successors, (167), 7 states have internal predecessors, (167), 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) [2021-12-18 05:44:24,485 INFO L276 IsEmpty]: Start isEmpty. Operand 11292 states and 17028 transitions. [2021-12-18 05:44:24,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2021-12-18 05:44:24,502 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:44:24,502 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] [2021-12-18 05:44:24,536 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-18 05:44:24,718 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 [2021-12-18 05:44:24,718 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:44:24,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:44:24,718 INFO L85 PathProgramCache]: Analyzing trace with hash -574795615, now seen corresponding path program 2 times [2021-12-18 05:44:24,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 05:44:24,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105161447] [2021-12-18 05:44:24,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:44:24,719 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 05:44:25,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:25,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:44:25,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:25,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:44:25,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:25,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:44:25,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:25,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 05:44:25,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:25,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:44:25,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:25,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:44:25,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:25,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 05:44:25,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:25,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:44:25,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:25,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:44:25,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:25,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 05:44:25,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:25,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:44:25,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:25,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:44:25,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:25,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 05:44:25,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:25,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:44:25,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:25,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:44:25,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:25,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 05:44:25,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:25,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:44:25,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:25,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:44:25,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:25,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-18 05:44:25,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:25,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:44:25,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:25,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-18 05:44:25,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:25,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:44:25,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:25,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-18 05:44:25,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:25,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:44:25,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:25,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 05:44:25,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:25,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:44:25,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:25,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 05:44:25,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:25,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:44:25,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:25,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-18 05:44:25,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:25,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:44:25,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:25,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-18 05:44:25,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:25,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:44:25,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:25,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-18 05:44:25,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:25,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-12-18 05:44:25,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:25,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-18 05:44:25,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:25,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:44:25,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:25,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:44:25,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:25,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-12-18 05:44:25,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:25,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:44:25,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:25,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:44:25,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:25,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2021-12-18 05:44:25,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:25,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2021-12-18 05:44:25,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:25,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2021-12-18 05:44:25,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:25,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2021-12-18 05:44:25,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:25,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2021-12-18 05:44:25,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:25,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2021-12-18 05:44:25,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:25,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2021-12-18 05:44:25,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:25,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2021-12-18 05:44:25,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:25,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2021-12-18 05:44:25,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:44:25,441 INFO L134 CoverageAnalysis]: Checked inductivity of 704 backedges. 4 proven. 61 refuted. 0 times theorem prover too weak. 639 trivial. 0 not checked. [2021-12-18 05:44:25,441 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 05:44:25,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105161447] [2021-12-18 05:44:25,441 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105161447] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 05:44:25,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1182017534] [2021-12-18 05:44:25,442 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-18 05:44:25,442 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 05:44:25,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 05:44:25,443 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) [2021-12-18 05:44:25,448 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-18 05:44:31,679 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-18 05:44:31,679 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-18 05:44:31,723 INFO L263 TraceCheckSpWp]: Trace formula consists of 5401 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-18 05:44:31,729 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 05:44:32,301 INFO L134 CoverageAnalysis]: Checked inductivity of 704 backedges. 240 proven. 1 refuted. 0 times theorem prover too weak. 463 trivial. 0 not checked. [2021-12-18 05:44:32,301 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 05:44:33,214 INFO L134 CoverageAnalysis]: Checked inductivity of 704 backedges. 4 proven. 61 refuted. 0 times theorem prover too weak. 639 trivial. 0 not checked. [2021-12-18 05:44:33,215 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1182017534] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-18 05:44:33,215 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-18 05:44:33,215 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 7] total 17 [2021-12-18 05:44:33,215 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493672153] [2021-12-18 05:44:33,215 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-18 05:44:33,216 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-12-18 05:44:33,216 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 05:44:33,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-12-18 05:44:33,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2021-12-18 05:44:33,217 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) [2021-12-18 05:45:10,483 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:45:12,239 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:45:13,696 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:45:15,528 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:45:17,351 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:45:19,390 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:45:21,440 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:45:23,487 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:45:31,111 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 05:45:33,024 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 05:45:35,200 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 05:45:53,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:45:53,757 INFO L93 Difference]: Finished difference Result 24804 states and 37967 transitions. [2021-12-18 05:45:53,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-18 05:45:53,757 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 [2021-12-18 05:45:53,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:45:53,802 INFO L225 Difference]: With dead ends: 24804 [2021-12-18 05:45:53,802 INFO L226 Difference]: Without dead ends: 13506 [2021-12-18 05:45:53,824 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 841 GetRequests, 809 SyntacticMatches, 4 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=154, Invalid=716, Unknown=0, NotChecked=0, Total=870 [2021-12-18 05:45:53,825 INFO L933 BasicCegarLoop]: 5170 mSDtfsCounter, 6392 mSDsluCounter, 28684 mSDsCounter, 0 mSdLazyCounter, 28989 mSolverCounterSat, 3655 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 69.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6684 SdHoareTripleChecker+Valid, 33854 SdHoareTripleChecker+Invalid, 32648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 3655 IncrementalHoareTripleChecker+Valid, 28989 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 79.0s IncrementalHoareTripleChecker+Time [2021-12-18 05:45:53,825 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6684 Valid, 33854 Invalid, 32648 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [3655 Valid, 28989 Invalid, 4 Unknown, 0 Unchecked, 79.0s Time] [2021-12-18 05:45:53,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13506 states. [2021-12-18 05:45:54,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13506 to 11328. [2021-12-18 05:45:54,225 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) [2021-12-18 05:45:54,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11328 states to 11328 states and 17068 transitions. [2021-12-18 05:45:54,258 INFO L78 Accepts]: Start accepts. Automaton has 11328 states and 17068 transitions. Word has length 362 [2021-12-18 05:45:54,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:45:54,259 INFO L470 AbstractCegarLoop]: Abstraction has 11328 states and 17068 transitions. [2021-12-18 05:45:54,259 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) [2021-12-18 05:45:54,259 INFO L276 IsEmpty]: Start isEmpty. Operand 11328 states and 17068 transitions. [2021-12-18 05:45:54,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2021-12-18 05:45:54,274 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:45:54,274 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] [2021-12-18 05:45:54,308 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-18 05:45:54,478 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 [2021-12-18 05:45:54,478 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:45:54,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:45:54,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1417433446, now seen corresponding path program 3 times [2021-12-18 05:45:54,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 05:45:54,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286773878] [2021-12-18 05:45:54,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:45:54,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 05:45:54,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:45:54,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:45:54,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:45:54,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:45:54,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:45:54,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:45:54,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:45:54,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 05:45:54,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:45:54,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:45:54,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:45:54,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:45:54,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:45:54,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 05:45:54,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:45:54,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:45:54,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:45:54,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:45:54,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:45:54,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 05:45:54,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:45:54,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:45:54,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:45:54,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:45:54,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:45:54,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 05:45:54,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:45:54,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:45:54,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:45:54,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:45:54,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:45:54,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 05:45:54,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:45:54,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:45:54,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:45:54,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:45:54,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:45:54,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-18 05:45:54,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:45:54,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:45:54,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:45:55,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-18 05:45:55,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:45:55,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:45:55,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:45:55,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-18 05:45:55,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:45:55,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:45:55,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:45:55,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-18 05:45:55,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:45:55,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:45:55,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:45:55,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-18 05:45:55,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:45:55,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:45:55,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:45:55,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-18 05:45:55,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:45:55,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:45:55,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:45:55,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-18 05:45:55,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:45:55,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:45:55,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:45:55,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-18 05:45:55,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:45:55,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-12-18 05:45:55,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:45:55,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-12-18 05:45:55,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:45:55,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:45:55,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:45:55,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:45:55,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:45:55,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-12-18 05:45:55,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:45:55,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:45:55,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:45:55,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:45:55,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:45:55,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-12-18 05:45:55,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:45:55,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2021-12-18 05:45:55,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:45:55,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-12-18 05:45:55,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:45:55,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2021-12-18 05:45:55,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:45:55,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2021-12-18 05:45:55,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:45:55,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2021-12-18 05:45:55,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:45:55,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2021-12-18 05:45:55,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:45:55,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2021-12-18 05:45:55,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:45:55,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2021-12-18 05:45:55,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:45:55,261 INFO L134 CoverageAnalysis]: Checked inductivity of 823 backedges. 4 proven. 93 refuted. 0 times theorem prover too weak. 726 trivial. 0 not checked. [2021-12-18 05:45:55,261 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 05:45:55,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286773878] [2021-12-18 05:45:55,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286773878] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 05:45:55,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [423348932] [2021-12-18 05:45:55,262 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-18 05:45:55,262 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 05:45:55,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 05:45:55,263 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) [2021-12-18 05:45:55,268 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-18 05:46:01,730 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-12-18 05:46:01,730 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-18 05:46:01,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 4724 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-18 05:46:01,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 05:46:02,285 INFO L134 CoverageAnalysis]: Checked inductivity of 823 backedges. 258 proven. 3 refuted. 0 times theorem prover too weak. 562 trivial. 0 not checked. [2021-12-18 05:46:02,286 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 05:46:03,067 INFO L134 CoverageAnalysis]: Checked inductivity of 823 backedges. 94 proven. 3 refuted. 0 times theorem prover too weak. 726 trivial. 0 not checked. [2021-12-18 05:46:03,068 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [423348932] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-18 05:46:03,068 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-18 05:46:03,068 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 8] total 20 [2021-12-18 05:46:03,068 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151286948] [2021-12-18 05:46:03,068 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-18 05:46:03,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-12-18 05:46:03,069 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 05:46:03,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-12-18 05:46:03,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2021-12-18 05:46:03,070 INFO L87 Difference]: Start difference. First operand 11328 states and 17068 transitions. Second operand has 20 states, 18 states have (on average 10.38888888888889) internal successors, (187), 16 states have internal predecessors, (187), 4 states have call successors, (69), 6 states have call predecessors, (69), 6 states have return successors, (55), 4 states have call predecessors, (55), 4 states have call successors, (55) [2021-12-18 05:46:43,148 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:46:45,198 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:46:47,541 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:46:49,236 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:46:50,926 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:46:52,976 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:46:55,029 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:47:03,857 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 05:47:05,965 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 05:47:08,059 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 05:47:10,220 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 05:47:12,315 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 05:47:14,410 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 05:47:34,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:47:34,158 INFO L93 Difference]: Finished difference Result 24872 states and 38048 transitions. [2021-12-18 05:47:34,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-12-18 05:47:34,160 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 10.38888888888889) internal successors, (187), 16 states have internal predecessors, (187), 4 states have call successors, (69), 6 states have call predecessors, (69), 6 states have return successors, (55), 4 states have call predecessors, (55), 4 states have call successors, (55) Word has length 369 [2021-12-18 05:47:34,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:47:34,208 INFO L225 Difference]: With dead ends: 24872 [2021-12-18 05:47:34,208 INFO L226 Difference]: Without dead ends: 13520 [2021-12-18 05:47:34,231 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 859 GetRequests, 822 SyntacticMatches, 4 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=204, Invalid=986, Unknown=0, NotChecked=0, Total=1190 [2021-12-18 05:47:34,232 INFO L933 BasicCegarLoop]: 5162 mSDtfsCounter, 8440 mSDsluCounter, 28471 mSDsCounter, 0 mSdLazyCounter, 28296 mSolverCounterSat, 4881 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 79.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8736 SdHoareTripleChecker+Valid, 33633 SdHoareTripleChecker+Invalid, 33187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 4881 IncrementalHoareTripleChecker+Valid, 28296 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 89.7s IncrementalHoareTripleChecker+Time [2021-12-18 05:47:34,232 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8736 Valid, 33633 Invalid, 33187 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [4881 Valid, 28296 Invalid, 10 Unknown, 0 Unchecked, 89.7s Time] [2021-12-18 05:47:34,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13520 states. [2021-12-18 05:47:34,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13520 to 11334. [2021-12-18 05:47:34,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11334 states, 8549 states have (on average 1.47023043630834) internal successors, (12569), 8905 states have internal predecessors, (12569), 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) [2021-12-18 05:47:34,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11334 states to 11334 states and 17078 transitions. [2021-12-18 05:47:34,672 INFO L78 Accepts]: Start accepts. Automaton has 11334 states and 17078 transitions. Word has length 369 [2021-12-18 05:47:34,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:47:34,672 INFO L470 AbstractCegarLoop]: Abstraction has 11334 states and 17078 transitions. [2021-12-18 05:47:34,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 10.38888888888889) internal successors, (187), 16 states have internal predecessors, (187), 4 states have call successors, (69), 6 states have call predecessors, (69), 6 states have return successors, (55), 4 states have call predecessors, (55), 4 states have call successors, (55) [2021-12-18 05:47:34,673 INFO L276 IsEmpty]: Start isEmpty. Operand 11334 states and 17078 transitions. [2021-12-18 05:47:34,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2021-12-18 05:47:34,687 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:47:34,688 INFO L514 BasicCegarLoop]: trace histogram [21, 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] [2021-12-18 05:47:34,707 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-18 05:47:34,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-12-18 05:47:34,888 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:47:34,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:47:34,890 INFO L85 PathProgramCache]: Analyzing trace with hash 311542913, now seen corresponding path program 4 times [2021-12-18 05:47:34,890 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 05:47:34,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402763701] [2021-12-18 05:47:34,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:47:34,890 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 05:47:35,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:35,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:47:35,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:35,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:47:35,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:35,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:47:35,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:35,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 05:47:35,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:35,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:47:35,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:35,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:47:35,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:35,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 05:47:35,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:35,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:47:35,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:35,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:47:35,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:35,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 05:47:35,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:35,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:47:35,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:35,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:47:35,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:35,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 05:47:35,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:35,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:47:35,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:35,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:47:35,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:35,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 05:47:35,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:35,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:47:35,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:35,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:47:35,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:35,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-18 05:47:35,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:35,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:47:35,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:35,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 05:47:35,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:35,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:47:35,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:35,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-18 05:47:35,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:35,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:47:35,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:35,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-18 05:47:35,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:35,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:47:35,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:35,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-18 05:47:35,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:35,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:47:35,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:35,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 05:47:35,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:35,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:47:35,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:35,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-18 05:47:35,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:35,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:47:35,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:35,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-18 05:47:35,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:35,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-12-18 05:47:35,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:35,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-12-18 05:47:35,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:35,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:47:35,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:35,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:47:35,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:35,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2021-12-18 05:47:35,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:35,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:47:35,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:35,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:47:35,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:35,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-12-18 05:47:35,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:35,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2021-12-18 05:47:35,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:35,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2021-12-18 05:47:35,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:35,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-12-18 05:47:35,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:35,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2021-12-18 05:47:35,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:35,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2021-12-18 05:47:35,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:35,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2021-12-18 05:47:35,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:35,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2021-12-18 05:47:35,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:35,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2021-12-18 05:47:35,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:35,688 INFO L134 CoverageAnalysis]: Checked inductivity of 991 backedges. 4 proven. 138 refuted. 0 times theorem prover too weak. 849 trivial. 0 not checked. [2021-12-18 05:47:35,688 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 05:47:35,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402763701] [2021-12-18 05:47:35,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402763701] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 05:47:35,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [937810693] [2021-12-18 05:47:35,689 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-18 05:47:35,689 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 05:47:35,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 05:47:35,690 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 05:47:35,691 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-18 05:47:38,367 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-18 05:47:38,367 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-18 05:47:38,398 INFO L263 TraceCheckSpWp]: Trace formula consists of 5611 conjuncts, 16 conjunts are in the unsatisfiable core [2021-12-18 05:47:38,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 05:47:39,066 INFO L134 CoverageAnalysis]: Checked inductivity of 991 backedges. 500 proven. 6 refuted. 0 times theorem prover too weak. 485 trivial. 0 not checked. [2021-12-18 05:47:39,066 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 05:47:40,258 INFO L134 CoverageAnalysis]: Checked inductivity of 991 backedges. 48 proven. 94 refuted. 0 times theorem prover too weak. 849 trivial. 0 not checked. [2021-12-18 05:47:40,259 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [937810693] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-18 05:47:40,259 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-18 05:47:40,259 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 9, 9] total 23 [2021-12-18 05:47:40,259 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505712224] [2021-12-18 05:47:40,259 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-18 05:47:40,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-12-18 05:47:40,260 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 05:47:40,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-12-18 05:47:40,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=440, Unknown=0, NotChecked=0, Total=506 [2021-12-18 05:47:40,260 INFO L87 Difference]: Start difference. First operand 11334 states and 17078 transitions. Second operand has 23 states, 21 states have (on average 9.19047619047619) internal successors, (193), 19 states have internal predecessors, (193), 4 states have call successors, (74), 6 states have call predecessors, (74), 6 states have return successors, (56), 4 states have call predecessors, (56), 4 states have call successors, (56) [2021-12-18 05:49:05,691 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:49:07,740 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:49:09,600 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:49:11,990 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:49:13,556 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:49:16,190 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:49:19,024 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:49:21,747 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:50:10,409 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 05:50:12,503 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 05:50:42,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:50:42,593 INFO L93 Difference]: Finished difference Result 24892 states and 38087 transitions. [2021-12-18 05:50:42,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-12-18 05:50:42,602 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 21 states have (on average 9.19047619047619) internal successors, (193), 19 states have internal predecessors, (193), 4 states have call successors, (74), 6 states have call predecessors, (74), 6 states have return successors, (56), 4 states have call predecessors, (56), 4 states have call successors, (56) Word has length 376 [2021-12-18 05:50:42,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:50:42,646 INFO L225 Difference]: With dead ends: 24892 [2021-12-18 05:50:42,646 INFO L226 Difference]: Without dead ends: 13534 [2021-12-18 05:50:42,669 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 876 GetRequests, 833 SyntacticMatches, 4 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 337 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=235, Invalid=1405, Unknown=0, NotChecked=0, Total=1640 [2021-12-18 05:50:42,670 INFO L933 BasicCegarLoop]: 5155 mSDtfsCounter, 6407 mSDsluCounter, 40901 mSDsCounter, 0 mSdLazyCounter, 41422 mSolverCounterSat, 3667 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 137.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6705 SdHoareTripleChecker+Valid, 46056 SdHoareTripleChecker+Invalid, 45095 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 3667 IncrementalHoareTripleChecker+Valid, 41422 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 179.3s IncrementalHoareTripleChecker+Time [2021-12-18 05:50:42,670 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6705 Valid, 46056 Invalid, 45095 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [3667 Valid, 41422 Invalid, 6 Unknown, 0 Unchecked, 179.3s Time] [2021-12-18 05:50:42,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13534 states. [2021-12-18 05:50:43,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13534 to 11340. [2021-12-18 05:50:43,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11340 states, 8555 states have (on average 1.4703682057276446) internal successors, (12579), 8911 states have internal predecessors, (12579), 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) [2021-12-18 05:50:43,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11340 states to 11340 states and 17088 transitions. [2021-12-18 05:50:43,105 INFO L78 Accepts]: Start accepts. Automaton has 11340 states and 17088 transitions. Word has length 376 [2021-12-18 05:50:43,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:50:43,106 INFO L470 AbstractCegarLoop]: Abstraction has 11340 states and 17088 transitions. [2021-12-18 05:50:43,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 21 states have (on average 9.19047619047619) internal successors, (193), 19 states have internal predecessors, (193), 4 states have call successors, (74), 6 states have call predecessors, (74), 6 states have return successors, (56), 4 states have call predecessors, (56), 4 states have call successors, (56) [2021-12-18 05:50:43,106 INFO L276 IsEmpty]: Start isEmpty. Operand 11340 states and 17088 transitions. [2021-12-18 05:50:43,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2021-12-18 05:50:43,121 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:50:43,121 INFO L514 BasicCegarLoop]: trace histogram [28, 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] [2021-12-18 05:50:43,156 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-18 05:50:43,322 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 05:50:43,322 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:50:43,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:50:43,322 INFO L85 PathProgramCache]: Analyzing trace with hash 358753466, now seen corresponding path program 5 times [2021-12-18 05:50:43,323 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 05:50:43,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263756925] [2021-12-18 05:50:43,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:50:43,323 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 05:50:43,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:43,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:50:43,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:43,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:43,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:43,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:50:43,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:43,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 05:50:43,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:43,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:43,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:43,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:50:43,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:43,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 05:50:43,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:43,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:43,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:43,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:50:43,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:43,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 05:50:43,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:43,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:43,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:43,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:50:43,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:43,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 05:50:43,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:43,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:43,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:43,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:50:43,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:43,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 05:50:43,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:43,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:43,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:43,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:50:43,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:43,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-18 05:50:43,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:43,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:43,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:44,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 05:50:44,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:44,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:44,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:44,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-18 05:50:44,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:44,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:44,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:44,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-18 05:50:44,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:44,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:44,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:44,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-18 05:50:44,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:44,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:44,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:44,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2021-12-18 05:50:44,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:44,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:44,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:44,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-18 05:50:44,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:44,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:44,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:44,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-12-18 05:50:44,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:44,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-12-18 05:50:44,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:44,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-12-18 05:50:44,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:44,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:44,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:44,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:50:44,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:44,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-12-18 05:50:44,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:44,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:44,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:44,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:50:44,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:44,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2021-12-18 05:50:44,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:44,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2021-12-18 05:50:44,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:44,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2021-12-18 05:50:44,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:44,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2021-12-18 05:50:44,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:44,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2021-12-18 05:50:44,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:44,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2021-12-18 05:50:44,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:44,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2021-12-18 05:50:44,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:44,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2021-12-18 05:50:44,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:44,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2021-12-18 05:50:44,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:44,225 INFO L134 CoverageAnalysis]: Checked inductivity of 1208 backedges. 4 proven. 196 refuted. 0 times theorem prover too weak. 1008 trivial. 0 not checked. [2021-12-18 05:50:44,225 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 05:50:44,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263756925] [2021-12-18 05:50:44,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263756925] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 05:50:44,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [31871892] [2021-12-18 05:50:44,226 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-18 05:50:44,226 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 05:50:44,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 05:50:44,227 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 05:50:44,228 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-18 05:50:45,214 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-12-18 05:50:45,214 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-18 05:50:45,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 17 conjunts are in the unsatisfiable core [2021-12-18 05:50:45,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 05:50:45,901 INFO L134 CoverageAnalysis]: Checked inductivity of 1208 backedges. 529 proven. 10 refuted. 0 times theorem prover too weak. 669 trivial. 0 not checked. [2021-12-18 05:50:45,901 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 05:50:47,931 INFO L134 CoverageAnalysis]: Checked inductivity of 1208 backedges. 35 proven. 165 refuted. 0 times theorem prover too weak. 1008 trivial. 0 not checked. [2021-12-18 05:50:47,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [31871892] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-18 05:50:47,931 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-18 05:50:47,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10, 10] total 24 [2021-12-18 05:50:47,931 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999791369] [2021-12-18 05:50:47,931 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-18 05:50:47,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-12-18 05:50:47,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 05:50:47,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-12-18 05:50:47,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=479, Unknown=0, NotChecked=0, Total=552 [2021-12-18 05:50:47,933 INFO L87 Difference]: Start difference. First operand 11340 states and 17088 transitions. Second operand has 24 states, 22 states have (on average 8.772727272727273) internal successors, (193), 20 states have internal predecessors, (193), 4 states have call successors, (75), 6 states have call predecessors, (75), 6 states have return successors, (56), 4 states have call predecessors, (56), 4 states have call successors, (56) Killed by 15