./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7918e78c7fa8e57a6cd382ed800c3c73f2f498c616ea3e9ed6a8775509cf80ff --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 14:20:21,383 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 14:20:21,386 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 14:20:21,432 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 14:20:21,433 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 14:20:21,434 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 14:20:21,436 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 14:20:21,439 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 14:20:21,441 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 14:20:21,446 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 14:20:21,447 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 14:20:21,449 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 14:20:21,450 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 14:20:21,452 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 14:20:21,454 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 14:20:21,457 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 14:20:21,458 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 14:20:21,460 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 14:20:21,461 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 14:20:21,467 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 14:20:21,469 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 14:20:21,470 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 14:20:21,471 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 14:20:21,472 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 14:20:21,473 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 14:20:21,480 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 14:20:21,481 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 14:20:21,481 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 14:20:21,483 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 14:20:21,483 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 14:20:21,485 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 14:20:21,485 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 14:20:21,487 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 14:20:21,488 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 14:20:21,489 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 14:20:21,491 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 14:20:21,491 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 14:20:21,492 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 14:20:21,492 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 14:20:21,492 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 14:20:21,493 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 14:20:21,495 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 14:20:21,496 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 14:20:21,525 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 14:20:21,526 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 14:20:21,526 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 14:20:21,527 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 14:20:21,528 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 14:20:21,528 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 14:20:21,528 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 14:20:21,529 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 14:20:21,529 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 14:20:21,530 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 14:20:21,530 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 14:20:21,530 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 14:20:21,531 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 14:20:21,531 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 14:20:21,531 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 14:20:21,531 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 14:20:21,531 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 14:20:21,532 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 14:20:21,532 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 14:20:21,532 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 14:20:21,534 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 14:20:21,534 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 14:20:21,534 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 14:20:21,534 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 14:20:21,535 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 14:20:21,535 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 14:20:21,535 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 14:20:21,535 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 14:20:21,536 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 14:20:21,536 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 14:20:21,536 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7918e78c7fa8e57a6cd382ed800c3c73f2f498c616ea3e9ed6a8775509cf80ff [2022-07-12 14:20:21,794 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 14:20:21,823 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 14:20:21,826 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 14:20:21,827 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 14:20:21,828 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 14:20:21,829 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i [2022-07-12 14:20:21,911 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64beb57c6/8e003b65d23f40d3bf13a36b2c558340/FLAG2e5a598e6 [2022-07-12 14:20:22,877 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 14:20:22,878 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i [2022-07-12 14:20:22,921 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64beb57c6/8e003b65d23f40d3bf13a36b2c558340/FLAG2e5a598e6 [2022-07-12 14:20:23,394 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64beb57c6/8e003b65d23f40d3bf13a36b2c558340 [2022-07-12 14:20:23,397 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 14:20:23,398 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 14:20:23,399 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 14:20:23,400 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 14:20:23,403 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 14:20:23,404 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:20:23" (1/1) ... [2022-07-12 14:20:23,405 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3440046 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:20:23, skipping insertion in model container [2022-07-12 14:20:23,406 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:20:23" (1/1) ... [2022-07-12 14:20:23,412 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 14:20:23,536 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 14:20:26,350 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i[325202,325215] [2022-07-12 14:20:26,462 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 14:20:26,525 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 14:20:26,926 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i[325202,325215] [2022-07-12 14:20:26,942 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 14:20:27,068 INFO L208 MainTranslator]: Completed translation [2022-07-12 14:20:27,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:20:27 WrapperNode [2022-07-12 14:20:27,070 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 14:20:27,072 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 14:20:27,072 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 14:20:27,072 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 14:20:27,080 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:20:27" (1/1) ... [2022-07-12 14:20:27,168 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:20:27" (1/1) ... [2022-07-12 14:20:27,460 INFO L137 Inliner]: procedures = 336, calls = 2288, calls flagged for inlining = 154, calls inlined = 152, statements flattened = 5863 [2022-07-12 14:20:27,461 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 14:20:27,462 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 14:20:27,462 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 14:20:27,462 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 14:20:27,470 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:20:27" (1/1) ... [2022-07-12 14:20:27,471 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:20:27" (1/1) ... [2022-07-12 14:20:27,526 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:20:27" (1/1) ... [2022-07-12 14:20:27,527 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:20:27" (1/1) ... [2022-07-12 14:20:27,792 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:20:27" (1/1) ... [2022-07-12 14:20:27,817 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:20:27" (1/1) ... [2022-07-12 14:20:27,839 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:20:27" (1/1) ... [2022-07-12 14:20:27,877 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 14:20:27,879 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 14:20:27,879 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 14:20:27,879 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 14:20:27,880 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:20:27" (1/1) ... [2022-07-12 14:20:27,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 14:20:27,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 14:20:27,909 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-12 14:20:27,921 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-12 14:20:27,955 INFO L130 BoogieDeclarations]: Found specification of procedure find_comp_entry [2022-07-12 14:20:27,955 INFO L138 BoogieDeclarations]: Found implementation of procedure find_comp_entry [2022-07-12 14:20:27,955 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-07-12 14:20:27,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-07-12 14:20:27,956 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2022-07-12 14:20:27,956 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2022-07-12 14:20:27,956 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock_bh [2022-07-12 14:20:27,956 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock_bh [2022-07-12 14:20:27,956 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-07-12 14:20:27,956 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock_bh [2022-07-12 14:20:27,956 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock_bh [2022-07-12 14:20:27,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-12 14:20:27,957 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2022-07-12 14:20:27,957 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2022-07-12 14:20:27,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-12 14:20:27,957 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-12 14:20:27,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-12 14:20:27,957 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-12 14:20:27,958 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-12 14:20:27,958 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2022-07-12 14:20:27,958 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2022-07-12 14:20:27,958 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2022-07-12 14:20:27,958 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2022-07-12 14:20:27,958 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_xmit_process [2022-07-12 14:20:27,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_xmit_process [2022-07-12 14:20:27,959 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_unlink [2022-07-12 14:20:27,959 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_unlink [2022-07-12 14:20:27,959 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_shutdown_interface [2022-07-12 14:20:27,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_shutdown_interface [2022-07-12 14:20:27,959 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_destroy_interface [2022-07-12 14:20:27,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_destroy_interface [2022-07-12 14:20:27,959 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-12 14:20:27,959 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-12 14:20:27,960 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-07-12 14:20:27,960 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-07-12 14:20:27,960 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-12 14:20:27,960 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-12 14:20:27,960 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-07-12 14:20:27,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-07-12 14:20:27,960 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-12 14:20:27,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-12 14:20:27,961 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_lock_bh [2022-07-12 14:20:27,961 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_lock_bh [2022-07-12 14:20:27,961 INFO L130 BoogieDeclarations]: Found specification of procedure bpf_prog_destroy [2022-07-12 14:20:27,962 INFO L138 BoogieDeclarations]: Found implementation of procedure bpf_prog_destroy [2022-07-12 14:20:27,962 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_push [2022-07-12 14:20:27,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_push [2022-07-12 14:20:27,962 INFO L130 BoogieDeclarations]: Found specification of procedure unit_find [2022-07-12 14:20:27,962 INFO L138 BoogieDeclarations]: Found implementation of procedure unit_find [2022-07-12 14:20:27,962 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-12 14:20:27,962 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-12 14:20:27,963 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-12 14:20:27,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-12 14:20:27,963 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_be16 [2022-07-12 14:20:27,963 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_be16 [2022-07-12 14:20:27,964 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-07-12 14:20:27,964 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-07-12 14:20:27,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-12 14:20:27,965 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-12 14:20:27,965 INFO L130 BoogieDeclarations]: Found specification of procedure init_ppp_file [2022-07-12 14:20:27,965 INFO L138 BoogieDeclarations]: Found implementation of procedure init_ppp_file [2022-07-12 14:20:27,965 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-12 14:20:27,966 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-12 14:20:27,966 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-12 14:20:27,966 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-12 14:20:27,966 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-12 14:20:27,966 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-12 14:20:27,967 INFO L130 BoogieDeclarations]: Found specification of procedure skb_peek [2022-07-12 14:20:27,967 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_peek [2022-07-12 14:20:27,967 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_release [2022-07-12 14:20:27,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_release [2022-07-12 14:20:27,967 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-12 14:20:27,967 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-12 14:20:27,967 INFO L130 BoogieDeclarations]: Found specification of procedure get_filter [2022-07-12 14:20:27,968 INFO L138 BoogieDeclarations]: Found implementation of procedure get_filter [2022-07-12 14:20:27,968 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 14:20:27,968 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-12 14:20:27,969 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-12 14:20:27,969 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2022-07-12 14:20:27,969 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2022-07-12 14:20:27,969 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2022-07-12 14:20:27,969 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2022-07-12 14:20:27,969 INFO L130 BoogieDeclarations]: Found specification of procedure bpf_prog_create [2022-07-12 14:20:27,970 INFO L138 BoogieDeclarations]: Found implementation of procedure bpf_prog_create [2022-07-12 14:20:27,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 14:20:27,970 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_get_stats64 [2022-07-12 14:20:27,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_get_stats64 [2022-07-12 14:20:27,970 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2022-07-12 14:20:27,970 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2022-07-12 14:20:27,971 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-07-12 14:20:27,971 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-07-12 14:20:27,971 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_send_frame [2022-07-12 14:20:27,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_send_frame [2022-07-12 14:20:27,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-07-12 14:20:27,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-07-12 14:20:27,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-12 14:20:27,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-12 14:20:27,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 14:20:27,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 14:20:27,973 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_receive_error [2022-07-12 14:20:27,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_receive_error [2022-07-12 14:20:27,974 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_find_unit [2022-07-12 14:20:27,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_find_unit [2022-07-12 14:20:27,974 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-07-12 14:20:27,974 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-07-12 14:20:27,974 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2022-07-12 14:20:27,975 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2022-07-12 14:20:27,975 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-07-12 14:20:27,975 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-07-12 14:20:27,975 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-12 14:20:27,975 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-12 14:20:27,976 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-07-12 14:20:27,976 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-07-12 14:20:27,976 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_channel_push [2022-07-12 14:20:27,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_channel_push [2022-07-12 14:20:27,976 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-12 14:20:27,976 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-12 14:20:27,977 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-12 14:20:27,978 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-12 14:20:27,980 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-12 14:20:27,980 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-12 14:20:27,980 INFO L130 BoogieDeclarations]: Found specification of procedure find_compressor [2022-07-12 14:20:27,980 INFO L138 BoogieDeclarations]: Found implementation of procedure find_compressor [2022-07-12 14:20:27,981 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_pernet [2022-07-12 14:20:27,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_pernet [2022-07-12 14:20:27,982 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-12 14:20:27,982 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-12 14:20:27,983 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-07-12 14:20:27,989 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-07-12 14:20:27,989 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-12 14:20:27,990 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_pernet_device [2022-07-12 14:20:27,990 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_pernet_device [2022-07-12 14:20:27,990 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-12 14:20:27,990 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-12 14:20:27,990 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_disconnect_channel [2022-07-12 14:20:27,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_disconnect_channel [2022-07-12 14:20:27,990 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_net_ioctl [2022-07-12 14:20:27,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_net_ioctl [2022-07-12 14:20:27,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-12 14:20:27,991 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_unlock_bh [2022-07-12 14:20:27,991 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_unlock_bh [2022-07-12 14:20:27,991 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-07-12 14:20:27,991 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-07-12 14:20:27,991 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-12 14:20:27,991 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-12 14:20:27,991 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-12 14:20:27,992 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2022-07-12 14:20:27,992 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2022-07-12 14:20:27,992 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_output_wakeup [2022-07-12 14:20:27,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_output_wakeup [2022-07-12 14:20:27,992 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_exit_net [2022-07-12 14:20:27,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_exit_net [2022-07-12 14:20:27,992 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_free [2022-07-12 14:20:27,992 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_free [2022-07-12 14:20:27,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-12 14:20:27,993 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-12 14:20:27,993 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cloned [2022-07-12 14:20:27,993 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cloned [2022-07-12 14:20:27,993 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_do_recv [2022-07-12 14:20:27,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_do_recv [2022-07-12 14:20:27,993 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_unregister_channel [2022-07-12 14:20:27,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_unregister_channel [2022-07-12 14:20:27,993 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_be16 [2022-07-12 14:20:27,994 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_be16 [2022-07-12 14:20:27,994 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2022-07-12 14:20:27,994 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2022-07-12 14:20:27,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-07-12 14:20:27,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-07-12 14:20:27,994 INFO L130 BoogieDeclarations]: Found specification of procedure proto_to_npindex [2022-07-12 14:20:27,994 INFO L138 BoogieDeclarations]: Found implementation of procedure proto_to_npindex [2022-07-12 14:20:27,994 INFO L130 BoogieDeclarations]: Found specification of procedure net_generic [2022-07-12 14:20:27,994 INFO L138 BoogieDeclarations]: Found implementation of procedure net_generic [2022-07-12 14:20:27,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_39 [2022-07-12 14:20:27,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_39 [2022-07-12 14:20:27,995 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-12 14:20:27,995 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-12 14:20:27,995 INFO L130 BoogieDeclarations]: Found specification of procedure unit_put [2022-07-12 14:20:27,995 INFO L138 BoogieDeclarations]: Found implementation of procedure unit_put [2022-07-12 14:20:27,995 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_receive_nonmp_frame [2022-07-12 14:20:27,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_receive_nonmp_frame [2022-07-12 14:20:27,996 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2022-07-12 14:20:27,996 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2022-07-12 14:20:27,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-12 14:20:27,996 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-07-12 14:20:27,996 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-07-12 14:20:27,996 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-07-12 14:20:27,996 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-07-12 14:20:27,996 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2022-07-12 14:20:27,996 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2022-07-12 14:20:27,997 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_write [2022-07-12 14:20:27,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_write [2022-07-12 14:20:27,997 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2022-07-12 14:20:27,997 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2022-07-12 14:20:27,997 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-12 14:20:27,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-12 14:20:27,997 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2022-07-12 14:20:27,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2022-07-12 14:20:27,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-12 14:20:27,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-12 14:20:27,998 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ccp_closed [2022-07-12 14:20:27,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ccp_closed [2022-07-12 14:20:27,998 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_open [2022-07-12 14:20:27,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_open [2022-07-12 14:20:27,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 14:20:27,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-12 14:20:27,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-12 14:20:27,999 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-07-12 14:20:27,999 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-07-12 14:20:27,999 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-07-12 14:20:27,999 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-07-12 14:20:27,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 14:20:27,999 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-07-12 14:20:27,999 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-07-12 14:20:27,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 14:20:28,000 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-07-12 14:20:28,000 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-07-12 14:20:28,000 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-12 14:20:28,000 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~$Pointer$ [2022-07-12 14:20:28,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~$Pointer$ [2022-07-12 14:20:28,000 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 14:20:28,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 14:20:28,001 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-07-12 14:20:28,001 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-07-12 14:20:28,001 INFO L130 BoogieDeclarations]: Found specification of procedure idr_alloc [2022-07-12 14:20:28,001 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_alloc [2022-07-12 14:20:28,001 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-07-12 14:20:28,001 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-07-12 14:20:28,001 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-07-12 14:20:28,001 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-07-12 14:20:28,001 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-07-12 14:20:28,002 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-07-12 14:20:28,002 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_long_read [2022-07-12 14:20:28,002 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_long_read [2022-07-12 14:20:28,002 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-07-12 14:20:28,002 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-07-12 14:20:28,002 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2022-07-12 14:20:28,002 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2022-07-12 14:20:28,002 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-07-12 14:20:28,003 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-07-12 14:20:28,003 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_register_net_channel [2022-07-12 14:20:28,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_register_net_channel [2022-07-12 14:20:28,003 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-12 14:20:28,003 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-12 14:20:28,003 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_mp_explode [2022-07-12 14:20:28,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_mp_explode [2022-07-12 14:20:28,004 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_may_pull [2022-07-12 14:20:28,007 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_may_pull [2022-07-12 14:20:28,007 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-12 14:20:28,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-12 14:20:28,008 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ioctl [2022-07-12 14:20:28,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ioctl [2022-07-12 14:20:28,008 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ccp_peek [2022-07-12 14:20:28,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ccp_peek [2022-07-12 14:20:28,008 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_poll [2022-07-12 14:20:28,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_poll [2022-07-12 14:20:28,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 14:20:28,010 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_destroy_channel [2022-07-12 14:20:28,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_destroy_channel [2022-07-12 14:20:28,010 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-07-12 14:20:28,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-07-12 14:20:28,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 14:20:28,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 14:20:28,010 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-07-12 14:20:28,011 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-07-12 14:20:28,011 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-12 14:20:28,011 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-12 14:20:28,814 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 14:20:28,817 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 14:20:29,340 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-12 14:20:32,830 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 14:20:32,849 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 14:20:32,850 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 14:20:32,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:20:32 BoogieIcfgContainer [2022-07-12 14:20:32,856 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 14:20:32,857 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 14:20:32,857 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 14:20:32,863 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 14:20:32,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 02:20:23" (1/3) ... [2022-07-12 14:20:32,864 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a03e7f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 02:20:32, skipping insertion in model container [2022-07-12 14:20:32,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:20:27" (2/3) ... [2022-07-12 14:20:32,865 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a03e7f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 02:20:32, skipping insertion in model container [2022-07-12 14:20:32,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:20:32" (3/3) ... [2022-07-12 14:20:32,869 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i [2022-07-12 14:20:32,884 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 14:20:32,885 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 14:20:32,993 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 14:20:32,999 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4ce5df0, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@272a2dc9 [2022-07-12 14:20:33,000 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 14:20:33,011 INFO L276 IsEmpty]: Start isEmpty. Operand has 2136 states, 1495 states have (on average 1.3839464882943144) internal successors, (2069), 1564 states have internal predecessors, (2069), 516 states have call successors, (516), 124 states have call predecessors, (516), 123 states have return successors, (511), 491 states have call predecessors, (511), 511 states have call successors, (511) [2022-07-12 14:20:33,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-07-12 14:20:33,034 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:20:33,036 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 14:20:33,036 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:20:33,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:20:33,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1518773854, now seen corresponding path program 1 times [2022-07-12 14:20:33,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 14:20:33,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916252689] [2022-07-12 14:20:33,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:20:33,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 14:20:33,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:33,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 14:20:33,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:33,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:20:33,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:33,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:20:33,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:33,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 14:20:33,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:33,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:20:33,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:33,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:20:33,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:33,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 14:20:33,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:33,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:20:33,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:33,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:20:33,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:33,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 14:20:33,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:33,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:20:33,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:33,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:20:33,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:33,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 14:20:33,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:33,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:20:33,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:33,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:20:33,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:33,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 14:20:33,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:33,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:20:33,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:33,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:20:33,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:33,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 14:20:33,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:33,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:20:33,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:33,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:20:33,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:34,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 14:20:34,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:34,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:20:34,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:34,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:20:34,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:34,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 14:20:34,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:34,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:20:34,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:34,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-12 14:20:34,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:34,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:20:34,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:34,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-12 14:20:34,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:34,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:20:34,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:34,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-12 14:20:34,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:34,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:20:34,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:34,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 14:20:34,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:34,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:20:34,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:34,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-12 14:20:34,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:34,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:20:34,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:34,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-12 14:20:34,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:34,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:20:34,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:34,341 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2022-07-12 14:20:34,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 14:20:34,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916252689] [2022-07-12 14:20:34,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916252689] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:20:34,345 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:20:34,345 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 14:20:34,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937080166] [2022-07-12 14:20:34,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:20:34,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 14:20:34,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 14:20:34,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 14:20:34,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 14:20:34,402 INFO L87 Difference]: Start difference. First operand has 2136 states, 1495 states have (on average 1.3839464882943144) internal successors, (2069), 1564 states have internal predecessors, (2069), 516 states have call successors, (516), 124 states have call predecessors, (516), 123 states have return successors, (511), 491 states have call predecessors, (511), 511 states have call successors, (511) Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (22), 5 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-12 14:20:40,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:20:40,462 INFO L93 Difference]: Finished difference Result 4820 states and 7294 transitions. [2022-07-12 14:20:40,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 14:20:40,467 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (22), 5 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 225 [2022-07-12 14:20:40,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:20:40,510 INFO L225 Difference]: With dead ends: 4820 [2022-07-12 14:20:40,511 INFO L226 Difference]: Without dead ends: 2661 [2022-07-12 14:20:40,528 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-07-12 14:20:40,531 INFO L413 NwaCegarLoop]: 2927 mSDtfsCounter, 1905 mSDsluCounter, 2567 mSDsCounter, 0 mSdLazyCounter, 2204 mSolverCounterSat, 1453 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2020 SdHoareTripleChecker+Valid, 5494 SdHoareTripleChecker+Invalid, 3657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1453 IncrementalHoareTripleChecker+Valid, 2204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-07-12 14:20:40,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2020 Valid, 5494 Invalid, 3657 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1453 Valid, 2204 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-07-12 14:20:40,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2661 states. [2022-07-12 14:20:40,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2661 to 2108. [2022-07-12 14:20:40,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2108 states, 1478 states have (on average 1.3687415426251692) internal successors, (2023), 1540 states have internal predecessors, (2023), 507 states have call successors, (507), 123 states have call predecessors, (507), 122 states have return successors, (506), 486 states have call predecessors, (506), 506 states have call successors, (506) [2022-07-12 14:20:40,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2108 states to 2108 states and 3036 transitions. [2022-07-12 14:20:40,766 INFO L78 Accepts]: Start accepts. Automaton has 2108 states and 3036 transitions. Word has length 225 [2022-07-12 14:20:40,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:20:40,767 INFO L495 AbstractCegarLoop]: Abstraction has 2108 states and 3036 transitions. [2022-07-12 14:20:40,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (22), 5 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-12 14:20:40,767 INFO L276 IsEmpty]: Start isEmpty. Operand 2108 states and 3036 transitions. [2022-07-12 14:20:40,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-07-12 14:20:40,772 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:20:40,773 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 14:20:40,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 14:20:40,773 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:20:40,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:20:40,774 INFO L85 PathProgramCache]: Analyzing trace with hash 119169102, now seen corresponding path program 1 times [2022-07-12 14:20:40,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 14:20:40,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958109253] [2022-07-12 14:20:40,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:20:40,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 14:20:40,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:41,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 14:20:41,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:41,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:20:41,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:41,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:20:41,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:41,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 14:20:41,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:41,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:20:41,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:41,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:20:41,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:41,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 14:20:41,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:41,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:20:41,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:41,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:20:41,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:41,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 14:20:41,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:41,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:20:41,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:41,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:20:41,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:41,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 14:20:41,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:41,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:20:41,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:41,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:20:41,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:41,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 14:20:41,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:41,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:20:41,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:41,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:20:41,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:41,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 14:20:41,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:41,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:20:41,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:41,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:20:41,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:41,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 14:20:41,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:41,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:20:41,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:41,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:20:41,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:41,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 14:20:41,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:41,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:20:41,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:41,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-12 14:20:41,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:41,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:20:41,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:41,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-12 14:20:41,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:41,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:20:41,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:41,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-12 14:20:41,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:41,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:20:41,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:41,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 14:20:41,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:41,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:20:41,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:41,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-12 14:20:41,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:41,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:20:41,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:41,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-12 14:20:41,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:41,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:20:41,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:41,561 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2022-07-12 14:20:41,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 14:20:41,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958109253] [2022-07-12 14:20:41,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958109253] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:20:41,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:20:41,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 14:20:41,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896711472] [2022-07-12 14:20:41,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:20:41,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 14:20:41,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 14:20:41,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 14:20:41,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-12 14:20:41,568 INFO L87 Difference]: Start difference. First operand 2108 states and 3036 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2022-07-12 14:20:53,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:20:53,039 INFO L93 Difference]: Finished difference Result 6651 states and 9811 transitions. [2022-07-12 14:20:53,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 14:20:53,040 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 225 [2022-07-12 14:20:53,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:20:53,073 INFO L225 Difference]: With dead ends: 6651 [2022-07-12 14:20:53,073 INFO L226 Difference]: Without dead ends: 4581 [2022-07-12 14:20:53,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-12 14:20:53,084 INFO L413 NwaCegarLoop]: 3378 mSDtfsCounter, 5097 mSDsluCounter, 6014 mSDsCounter, 0 mSdLazyCounter, 5147 mSolverCounterSat, 2736 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5407 SdHoareTripleChecker+Valid, 9392 SdHoareTripleChecker+Invalid, 7883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2736 IncrementalHoareTripleChecker+Valid, 5147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2022-07-12 14:20:53,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5407 Valid, 9392 Invalid, 7883 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2736 Valid, 5147 Invalid, 0 Unknown, 0 Unchecked, 10.9s Time] [2022-07-12 14:20:53,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4581 states. [2022-07-12 14:20:53,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4581 to 3553. [2022-07-12 14:20:53,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3553 states, 2499 states have (on average 1.3661464585834333) internal successors, (3414), 2610 states have internal predecessors, (3414), 825 states have call successors, (825), 229 states have call predecessors, (825), 228 states have return successors, (824), 786 states have call predecessors, (824), 824 states have call successors, (824) [2022-07-12 14:20:53,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3553 states to 3553 states and 5063 transitions. [2022-07-12 14:20:53,252 INFO L78 Accepts]: Start accepts. Automaton has 3553 states and 5063 transitions. Word has length 225 [2022-07-12 14:20:53,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:20:53,253 INFO L495 AbstractCegarLoop]: Abstraction has 3553 states and 5063 transitions. [2022-07-12 14:20:53,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2022-07-12 14:20:53,254 INFO L276 IsEmpty]: Start isEmpty. Operand 3553 states and 5063 transitions. [2022-07-12 14:20:53,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-07-12 14:20:53,257 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:20:53,258 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 14:20:53,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 14:20:53,258 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:20:53,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:20:53,259 INFO L85 PathProgramCache]: Analyzing trace with hash 683526252, now seen corresponding path program 1 times [2022-07-12 14:20:53,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 14:20:53,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406738308] [2022-07-12 14:20:53,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:20:53,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 14:20:53,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:53,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 14:20:53,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:53,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:20:53,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:53,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:20:53,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:53,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 14:20:53,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:53,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:20:53,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:53,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:20:53,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:53,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 14:20:53,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:53,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:20:53,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:53,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:20:53,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:53,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 14:20:53,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:53,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:20:53,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:53,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:20:53,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:53,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 14:20:53,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:53,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:20:53,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:53,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:20:53,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:53,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 14:20:53,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:53,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:20:53,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:53,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:20:53,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:53,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 14:20:53,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:53,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:20:53,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:53,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:20:53,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:53,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 14:20:53,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:53,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:20:53,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:53,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:20:53,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:53,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 14:20:53,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:53,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:20:53,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:53,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-12 14:20:53,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:53,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:20:53,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:53,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-12 14:20:53,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:53,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:20:53,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:53,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-12 14:20:53,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:53,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:20:53,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:53,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 14:20:53,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:53,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:20:53,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:53,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-12 14:20:53,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:53,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:20:53,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:53,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-12 14:20:53,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:53,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:20:53,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:53,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-07-12 14:20:53,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:53,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-12 14:20:53,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:53,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-07-12 14:20:53,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:20:53,884 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2022-07-12 14:20:53,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 14:20:53,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406738308] [2022-07-12 14:20:53,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406738308] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:20:53,885 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:20:53,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 14:20:53,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209909049] [2022-07-12 14:20:53,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:20:53,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 14:20:53,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 14:20:53,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 14:20:53,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-12 14:20:53,888 INFO L87 Difference]: Start difference. First operand 3553 states and 5063 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-12 14:21:02,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:21:02,220 INFO L93 Difference]: Finished difference Result 12315 states and 18209 transitions. [2022-07-12 14:21:02,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 14:21:02,220 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 246 [2022-07-12 14:21:02,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:21:02,298 INFO L225 Difference]: With dead ends: 12315 [2022-07-12 14:21:02,299 INFO L226 Difference]: Without dead ends: 8800 [2022-07-12 14:21:02,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-12 14:21:02,324 INFO L413 NwaCegarLoop]: 3604 mSDtfsCounter, 8316 mSDsluCounter, 3960 mSDsCounter, 0 mSdLazyCounter, 3575 mSolverCounterSat, 4842 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8687 SdHoareTripleChecker+Valid, 7564 SdHoareTripleChecker+Invalid, 8417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4842 IncrementalHoareTripleChecker+Valid, 3575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-07-12 14:21:02,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8687 Valid, 7564 Invalid, 8417 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4842 Valid, 3575 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2022-07-12 14:21:02,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8800 states. [2022-07-12 14:21:02,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8800 to 7186. [2022-07-12 14:21:02,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7186 states, 5043 states have (on average 1.3628792385484831) internal successors, (6873), 5291 states have internal predecessors, (6873), 1645 states have call successors, (1645), 445 states have call predecessors, (1645), 497 states have return successors, (1859), 1605 states have call predecessors, (1859), 1644 states have call successors, (1859) [2022-07-12 14:21:02,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7186 states to 7186 states and 10377 transitions. [2022-07-12 14:21:02,754 INFO L78 Accepts]: Start accepts. Automaton has 7186 states and 10377 transitions. Word has length 246 [2022-07-12 14:21:02,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:21:02,756 INFO L495 AbstractCegarLoop]: Abstraction has 7186 states and 10377 transitions. [2022-07-12 14:21:02,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-12 14:21:02,757 INFO L276 IsEmpty]: Start isEmpty. Operand 7186 states and 10377 transitions. [2022-07-12 14:21:02,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2022-07-12 14:21:02,767 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:21:02,767 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 7, 7, 7, 7, 7, 7, 7, 7, 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] [2022-07-12 14:21:02,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-12 14:21:02,768 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:21:02,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:21:02,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1198469260, now seen corresponding path program 1 times [2022-07-12 14:21:02,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 14:21:02,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663556394] [2022-07-12 14:21:02,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:21:02,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 14:21:02,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:03,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 14:21:03,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:03,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:03,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:03,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:03,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:03,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 14:21:03,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:03,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:03,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:03,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:03,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:03,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 14:21:03,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:03,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:03,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:03,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:03,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:03,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 14:21:03,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:03,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:03,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:03,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:03,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:03,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 14:21:03,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:03,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:03,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:03,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:03,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:03,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 14:21:03,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:03,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:03,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:03,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:03,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:03,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 14:21:03,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:03,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:03,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:03,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:03,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:03,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 14:21:03,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:03,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:03,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:03,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:03,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:03,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 14:21:03,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:03,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:03,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:03,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-12 14:21:03,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:03,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:03,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:03,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-12 14:21:03,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:03,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:03,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:03,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-12 14:21:03,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:03,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:03,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:03,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 14:21:03,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:03,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:03,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:03,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-12 14:21:03,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:03,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:03,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:03,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-12 14:21:03,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:03,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:03,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:03,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-12 14:21:03,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:03,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:03,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:03,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:03,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:03,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-07-12 14:21:03,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:03,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:03,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:03,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:03,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:03,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-12 14:21:03,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:03,488 INFO L134 CoverageAnalysis]: Checked inductivity of 822 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 819 trivial. 0 not checked. [2022-07-12 14:21:03,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 14:21:03,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663556394] [2022-07-12 14:21:03,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663556394] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:21:03,489 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:21:03,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 14:21:03,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029337114] [2022-07-12 14:21:03,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:21:03,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 14:21:03,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 14:21:03,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 14:21:03,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-12 14:21:03,492 INFO L87 Difference]: Start difference. First operand 7186 states and 10377 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2022-07-12 14:21:09,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:21:09,674 INFO L93 Difference]: Finished difference Result 15900 states and 23467 transitions. [2022-07-12 14:21:09,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 14:21:09,675 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 279 [2022-07-12 14:21:09,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:21:09,743 INFO L225 Difference]: With dead ends: 15900 [2022-07-12 14:21:09,744 INFO L226 Difference]: Without dead ends: 8756 [2022-07-12 14:21:09,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-07-12 14:21:09,788 INFO L413 NwaCegarLoop]: 2767 mSDtfsCounter, 4740 mSDsluCounter, 3440 mSDsCounter, 0 mSdLazyCounter, 2868 mSolverCounterSat, 2118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5039 SdHoareTripleChecker+Valid, 6207 SdHoareTripleChecker+Invalid, 4986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2118 IncrementalHoareTripleChecker+Valid, 2868 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-07-12 14:21:09,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5039 Valid, 6207 Invalid, 4986 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2118 Valid, 2868 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-07-12 14:21:09,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8756 states. [2022-07-12 14:21:10,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8756 to 7186. [2022-07-12 14:21:10,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7186 states, 5043 states have (on average 1.362086059884989) internal successors, (6869), 5291 states have internal predecessors, (6869), 1645 states have call successors, (1645), 445 states have call predecessors, (1645), 497 states have return successors, (1859), 1605 states have call predecessors, (1859), 1644 states have call successors, (1859) [2022-07-12 14:21:10,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7186 states to 7186 states and 10373 transitions. [2022-07-12 14:21:10,234 INFO L78 Accepts]: Start accepts. Automaton has 7186 states and 10373 transitions. Word has length 279 [2022-07-12 14:21:10,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:21:10,235 INFO L495 AbstractCegarLoop]: Abstraction has 7186 states and 10373 transitions. [2022-07-12 14:21:10,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2022-07-12 14:21:10,236 INFO L276 IsEmpty]: Start isEmpty. Operand 7186 states and 10373 transitions. [2022-07-12 14:21:10,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-07-12 14:21:10,243 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:21:10,243 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 7, 7, 7, 7, 7, 7, 7, 7, 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] [2022-07-12 14:21:10,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-12 14:21:10,244 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:21:10,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:21:10,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1833686891, now seen corresponding path program 1 times [2022-07-12 14:21:10,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 14:21:10,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072245442] [2022-07-12 14:21:10,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:21:10,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 14:21:10,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:10,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 14:21:10,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:10,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:10,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:10,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:10,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:10,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 14:21:10,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:10,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:10,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:10,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:10,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:10,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 14:21:10,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:10,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:10,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:10,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:10,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:10,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 14:21:10,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:10,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:10,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:10,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:10,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:10,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 14:21:10,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:10,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:10,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:10,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:10,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:10,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 14:21:10,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:10,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:10,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:10,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:10,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:10,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 14:21:10,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:10,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:10,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:10,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:10,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:10,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 14:21:10,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:10,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:10,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:10,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:10,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:10,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 14:21:10,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:10,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:10,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:10,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-12 14:21:10,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:10,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:10,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:10,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-12 14:21:10,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:10,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:10,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:10,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-12 14:21:10,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:10,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:10,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:10,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 14:21:10,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:10,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:10,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:10,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-12 14:21:10,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:11,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:11,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:11,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-12 14:21:11,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:11,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:11,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:11,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-12 14:21:11,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:11,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:11,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:11,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:11,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:11,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-07-12 14:21:11,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:11,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:11,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:11,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:11,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:11,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-12 14:21:11,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:11,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-07-12 14:21:11,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:11,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:11,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:11,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:11,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:11,136 INFO L134 CoverageAnalysis]: Checked inductivity of 962 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 962 trivial. 0 not checked. [2022-07-12 14:21:11,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 14:21:11,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072245442] [2022-07-12 14:21:11,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072245442] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:21:11,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:21:11,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 14:21:11,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956797196] [2022-07-12 14:21:11,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:21:11,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 14:21:11,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 14:21:11,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 14:21:11,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-12 14:21:11,139 INFO L87 Difference]: Start difference. First operand 7186 states and 10373 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (26), 6 states have call predecessors, (26), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-12 14:21:17,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:21:17,435 INFO L93 Difference]: Finished difference Result 13475 states and 20285 transitions. [2022-07-12 14:21:17,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 14:21:17,436 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (26), 6 states have call predecessors, (26), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 296 [2022-07-12 14:21:17,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:21:17,510 INFO L225 Difference]: With dead ends: 13475 [2022-07-12 14:21:17,510 INFO L226 Difference]: Without dead ends: 13472 [2022-07-12 14:21:17,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-12 14:21:17,520 INFO L413 NwaCegarLoop]: 3715 mSDtfsCounter, 6255 mSDsluCounter, 3062 mSDsCounter, 0 mSdLazyCounter, 2792 mSolverCounterSat, 3345 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6497 SdHoareTripleChecker+Valid, 6777 SdHoareTripleChecker+Invalid, 6137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3345 IncrementalHoareTripleChecker+Valid, 2792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-07-12 14:21:17,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6497 Valid, 6777 Invalid, 6137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3345 Valid, 2792 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-07-12 14:21:17,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13472 states. [2022-07-12 14:21:17,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13472 to 10614. [2022-07-12 14:21:17,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10614 states, 7553 states have (on average 1.3687276578842844) internal successors, (10338), 7924 states have internal predecessors, (10338), 2282 states have call successors, (2282), 713 states have call predecessors, (2282), 778 states have return successors, (2664), 2188 states have call predecessors, (2664), 2281 states have call successors, (2664) [2022-07-12 14:21:18,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10614 states to 10614 states and 15284 transitions. [2022-07-12 14:21:18,029 INFO L78 Accepts]: Start accepts. Automaton has 10614 states and 15284 transitions. Word has length 296 [2022-07-12 14:21:18,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:21:18,032 INFO L495 AbstractCegarLoop]: Abstraction has 10614 states and 15284 transitions. [2022-07-12 14:21:18,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (26), 6 states have call predecessors, (26), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-12 14:21:18,033 INFO L276 IsEmpty]: Start isEmpty. Operand 10614 states and 15284 transitions. [2022-07-12 14:21:18,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2022-07-12 14:21:18,044 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:21:18,045 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 14:21:18,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-12 14:21:18,045 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:21:18,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:21:18,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1920344343, now seen corresponding path program 1 times [2022-07-12 14:21:18,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 14:21:18,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148713367] [2022-07-12 14:21:18,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:21:18,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 14:21:18,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:18,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 14:21:18,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:18,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:18,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:18,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:18,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:18,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 14:21:18,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:18,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:18,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:18,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:18,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:18,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 14:21:18,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:18,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:18,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:18,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:18,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:18,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 14:21:18,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:18,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:18,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:18,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:18,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:18,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 14:21:18,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:18,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:18,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:18,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:18,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:18,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 14:21:18,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:18,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:18,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:18,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:18,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:18,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 14:21:18,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:18,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:18,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:18,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:18,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:18,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 14:21:18,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:18,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:18,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:18,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:18,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:18,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 14:21:18,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:18,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:18,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:18,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-12 14:21:18,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:18,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:18,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:18,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-12 14:21:18,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:18,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:18,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:18,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-12 14:21:18,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:18,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:18,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:18,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 14:21:18,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:18,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:18,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:18,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-12 14:21:18,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:18,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:18,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:18,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-12 14:21:18,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:18,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:18,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:18,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-12 14:21:18,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:18,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:18,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:18,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:18,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:18,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-07-12 14:21:18,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:18,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:18,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:18,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:18,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:18,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-12 14:21:18,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:18,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-07-12 14:21:18,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:18,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:18,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:18,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:18,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:18,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2022-07-12 14:21:18,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:18,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:18,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:18,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:18,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:18,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2022-07-12 14:21:18,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:19,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-07-12 14:21:19,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:19,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-07-12 14:21:19,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:19,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:19,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:19,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-12 14:21:19,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:19,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2022-07-12 14:21:19,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:19,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2022-07-12 14:21:19,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:19,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:19,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:19,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2022-07-12 14:21:19,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:19,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:19,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:19,086 INFO L134 CoverageAnalysis]: Checked inductivity of 974 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 972 trivial. 0 not checked. [2022-07-12 14:21:19,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 14:21:19,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148713367] [2022-07-12 14:21:19,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148713367] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:21:19,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:21:19,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-12 14:21:19,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466290699] [2022-07-12 14:21:19,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:21:19,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 14:21:19,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 14:21:19,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 14:21:19,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-12 14:21:19,092 INFO L87 Difference]: Start difference. First operand 10614 states and 15284 transitions. Second operand has 12 states, 12 states have (on average 10.083333333333334) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (42), 7 states have call predecessors, (42), 3 states have return successors, (34), 4 states have call predecessors, (34), 2 states have call successors, (34) [2022-07-12 14:21:33,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:21:33,949 INFO L93 Difference]: Finished difference Result 27466 states and 41924 transitions. [2022-07-12 14:21:33,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 14:21:33,950 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.083333333333334) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (42), 7 states have call predecessors, (42), 3 states have return successors, (34), 4 states have call predecessors, (34), 2 states have call successors, (34) Word has length 386 [2022-07-12 14:21:33,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:21:34,048 INFO L225 Difference]: With dead ends: 27466 [2022-07-12 14:21:34,048 INFO L226 Difference]: Without dead ends: 16894 [2022-07-12 14:21:34,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=109, Invalid=311, Unknown=0, NotChecked=0, Total=420 [2022-07-12 14:21:34,104 INFO L413 NwaCegarLoop]: 2891 mSDtfsCounter, 6027 mSDsluCounter, 13970 mSDsCounter, 0 mSdLazyCounter, 11749 mSolverCounterSat, 4899 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6271 SdHoareTripleChecker+Valid, 16861 SdHoareTripleChecker+Invalid, 16648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4899 IncrementalHoareTripleChecker+Valid, 11749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.7s IncrementalHoareTripleChecker+Time [2022-07-12 14:21:34,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6271 Valid, 16861 Invalid, 16648 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4899 Valid, 11749 Invalid, 0 Unknown, 0 Unchecked, 13.7s Time] [2022-07-12 14:21:34,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16894 states. [2022-07-12 14:21:34,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16894 to 11260. [2022-07-12 14:21:34,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11260 states, 7994 states have (on average 1.3696522391793846) internal successors, (10949), 8396 states have internal predecessors, (10949), 2459 states have call successors, (2459), 713 states have call predecessors, (2459), 806 states have return successors, (2967), 2365 states have call predecessors, (2967), 2458 states have call successors, (2967) [2022-07-12 14:21:34,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11260 states to 11260 states and 16375 transitions. [2022-07-12 14:21:34,794 INFO L78 Accepts]: Start accepts. Automaton has 11260 states and 16375 transitions. Word has length 386 [2022-07-12 14:21:34,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:21:34,795 INFO L495 AbstractCegarLoop]: Abstraction has 11260 states and 16375 transitions. [2022-07-12 14:21:34,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.083333333333334) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (42), 7 states have call predecessors, (42), 3 states have return successors, (34), 4 states have call predecessors, (34), 2 states have call successors, (34) [2022-07-12 14:21:34,795 INFO L276 IsEmpty]: Start isEmpty. Operand 11260 states and 16375 transitions. [2022-07-12 14:21:34,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2022-07-12 14:21:34,809 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:21:34,809 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 14:21:34,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-12 14:21:34,810 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:21:34,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:21:34,810 INFO L85 PathProgramCache]: Analyzing trace with hash 366789914, now seen corresponding path program 1 times [2022-07-12 14:21:34,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 14:21:34,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993322240] [2022-07-12 14:21:34,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:21:34,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 14:21:34,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:35,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 14:21:35,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:35,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:35,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:35,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:35,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:35,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 14:21:35,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:35,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:35,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:35,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:35,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:35,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 14:21:35,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:35,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:35,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:35,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:35,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:35,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 14:21:35,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:35,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:35,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:35,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:35,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:35,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 14:21:35,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:35,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:35,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:35,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:35,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:35,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 14:21:35,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:35,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:35,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:35,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:35,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:35,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 14:21:35,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:35,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:35,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:35,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:35,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:35,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 14:21:35,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:35,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:35,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:35,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:35,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:35,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 14:21:35,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:35,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:35,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:35,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-12 14:21:35,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:35,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:35,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:35,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-12 14:21:35,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:35,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:35,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:35,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-12 14:21:35,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:35,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:35,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:35,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 14:21:35,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:35,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:35,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:35,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-12 14:21:35,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:35,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:35,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:35,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-12 14:21:35,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:35,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:35,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:35,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-12 14:21:35,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:35,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:35,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:35,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:35,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:35,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-07-12 14:21:35,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:35,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:35,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:35,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:35,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:35,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-12 14:21:35,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:35,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-07-12 14:21:35,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:35,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:35,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:35,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:35,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:35,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-07-12 14:21:35,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:35,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:35,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:35,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:35,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:35,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 14:21:35,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:35,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 14:21:35,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:35,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:35,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:35,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 14:21:35,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:35,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-07-12 14:21:35,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:35,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-07-12 14:21:35,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:35,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2022-07-12 14:21:35,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:35,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:35,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:35,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-12 14:21:35,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:35,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2022-07-12 14:21:35,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:35,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2022-07-12 14:21:35,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:35,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:35,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:35,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2022-07-12 14:21:35,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:35,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:35,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:35,626 INFO L134 CoverageAnalysis]: Checked inductivity of 1066 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1061 trivial. 0 not checked. [2022-07-12 14:21:35,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 14:21:35,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993322240] [2022-07-12 14:21:35,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993322240] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:21:35,627 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 14:21:35,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 14:21:35,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858548603] [2022-07-12 14:21:35,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:21:35,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 14:21:35,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 14:21:35,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 14:21:35,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-07-12 14:21:35,630 INFO L87 Difference]: Start difference. First operand 11260 states and 16375 transitions. Second operand has 8 states, 8 states have (on average 16.25) internal successors, (130), 3 states have internal predecessors, (130), 3 states have call successors, (46), 7 states have call predecessors, (46), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2022-07-12 14:21:49,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:21:49,601 INFO L93 Difference]: Finished difference Result 35951 states and 55382 transitions. [2022-07-12 14:21:49,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-12 14:21:49,602 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.25) internal successors, (130), 3 states have internal predecessors, (130), 3 states have call successors, (46), 7 states have call predecessors, (46), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) Word has length 407 [2022-07-12 14:21:49,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:21:49,733 INFO L225 Difference]: With dead ends: 35951 [2022-07-12 14:21:49,734 INFO L226 Difference]: Without dead ends: 24733 [2022-07-12 14:21:49,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2022-07-12 14:21:49,781 INFO L413 NwaCegarLoop]: 4010 mSDtfsCounter, 10926 mSDsluCounter, 6712 mSDsCounter, 0 mSdLazyCounter, 7476 mSolverCounterSat, 8287 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11374 SdHoareTripleChecker+Valid, 10722 SdHoareTripleChecker+Invalid, 15763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8287 IncrementalHoareTripleChecker+Valid, 7476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2022-07-12 14:21:49,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11374 Valid, 10722 Invalid, 15763 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8287 Valid, 7476 Invalid, 0 Unknown, 0 Unchecked, 12.7s Time] [2022-07-12 14:21:49,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24733 states. [2022-07-12 14:21:50,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24733 to 16209. [2022-07-12 14:21:50,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16209 states, 11527 states have (on average 1.369133339116856) internal successors, (15782), 12119 states have internal predecessors, (15782), 3500 states have call successors, (3500), 1049 states have call predecessors, (3500), 1181 states have return successors, (4227), 3354 states have call predecessors, (4227), 3499 states have call successors, (4227) [2022-07-12 14:21:50,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16209 states to 16209 states and 23509 transitions. [2022-07-12 14:21:50,681 INFO L78 Accepts]: Start accepts. Automaton has 16209 states and 23509 transitions. Word has length 407 [2022-07-12 14:21:50,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:21:50,683 INFO L495 AbstractCegarLoop]: Abstraction has 16209 states and 23509 transitions. [2022-07-12 14:21:50,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.25) internal successors, (130), 3 states have internal predecessors, (130), 3 states have call successors, (46), 7 states have call predecessors, (46), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2022-07-12 14:21:50,683 INFO L276 IsEmpty]: Start isEmpty. Operand 16209 states and 23509 transitions. [2022-07-12 14:21:50,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2022-07-12 14:21:50,694 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:21:50,695 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 14:21:50,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-12 14:21:50,695 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:21:50,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:21:50,696 INFO L85 PathProgramCache]: Analyzing trace with hash 1924723431, now seen corresponding path program 1 times [2022-07-12 14:21:50,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 14:21:50,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505419196] [2022-07-12 14:21:50,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:21:50,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 14:21:50,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:51,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 14:21:51,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:51,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:51,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:51,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:51,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:51,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 14:21:51,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:51,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:51,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:51,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:51,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:51,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 14:21:51,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:51,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:51,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:51,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:51,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:51,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 14:21:51,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:51,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:51,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:51,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:51,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:51,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 14:21:51,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:51,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:51,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:51,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:51,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:51,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 14:21:51,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:51,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:51,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:51,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:51,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:51,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 14:21:51,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:51,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:51,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:51,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:51,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:51,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 14:21:51,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:51,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:51,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:51,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:51,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:51,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 14:21:51,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:51,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:51,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:51,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-12 14:21:51,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:51,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:51,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:51,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-12 14:21:51,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:51,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:51,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:51,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-12 14:21:51,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:51,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:51,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:51,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 14:21:51,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:51,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:51,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:51,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-12 14:21:51,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:51,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:51,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:51,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-12 14:21:51,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:51,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:51,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:51,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-12 14:21:51,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:51,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:51,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:51,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:51,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:51,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-07-12 14:21:51,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:51,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:51,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:51,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:51,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:51,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-12 14:21:51,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:51,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-07-12 14:21:51,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:51,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:51,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:51,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:51,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:51,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2022-07-12 14:21:51,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:51,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:51,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:51,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:51,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:51,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 14:21:51,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:51,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 14:21:51,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:51,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:51,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:51,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 14:21:51,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:51,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-07-12 14:21:51,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:51,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2022-07-12 14:21:51,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:51,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-07-12 14:21:51,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:51,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:51,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:51,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-12 14:21:51,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:51,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-07-12 14:21:51,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:51,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2022-07-12 14:21:51,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:51,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:51,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:51,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2022-07-12 14:21:51,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:51,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2022-07-12 14:21:51,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:51,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:51,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:51,569 INFO L134 CoverageAnalysis]: Checked inductivity of 1060 backedges. 2 proven. 42 refuted. 0 times theorem prover too weak. 1016 trivial. 0 not checked. [2022-07-12 14:21:51,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 14:21:51,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505419196] [2022-07-12 14:21:51,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505419196] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 14:21:51,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1926105986] [2022-07-12 14:21:51,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:21:51,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 14:21:51,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 14:21:51,574 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 14:21:51,576 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-12 14:21:52,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:52,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 3950 conjuncts, 19 conjunts are in the unsatisfiable core [2022-07-12 14:21:52,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:21:52,670 INFO L134 CoverageAnalysis]: Checked inductivity of 1060 backedges. 223 proven. 0 refuted. 0 times theorem prover too weak. 837 trivial. 0 not checked. [2022-07-12 14:21:52,670 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:21:52,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1926105986] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:21:52,670 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 14:21:52,671 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 14 [2022-07-12 14:21:52,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911751030] [2022-07-12 14:21:52,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:21:52,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 14:21:52,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 14:21:52,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 14:21:52,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-07-12 14:21:52,673 INFO L87 Difference]: Start difference. First operand 16209 states and 23509 transitions. Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 3 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2022-07-12 14:21:53,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:21:53,307 INFO L93 Difference]: Finished difference Result 32368 states and 46951 transitions. [2022-07-12 14:21:53,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 14:21:53,308 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 3 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 405 [2022-07-12 14:21:53,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:21:53,376 INFO L225 Difference]: With dead ends: 32368 [2022-07-12 14:21:53,377 INFO L226 Difference]: Without dead ends: 16175 [2022-07-12 14:21:53,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 542 GetRequests, 528 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-07-12 14:21:53,420 INFO L413 NwaCegarLoop]: 3034 mSDtfsCounter, 3 mSDsluCounter, 9089 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 12123 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 14:21:53,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 12123 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 14:21:53,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16175 states. [2022-07-12 14:21:53,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16175 to 16167. [2022-07-12 14:21:53,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16167 states, 11495 states have (on average 1.3694649847759897) internal successors, (15742), 12083 states have internal predecessors, (15742), 3494 states have call successors, (3494), 1045 states have call predecessors, (3494), 1177 states have return successors, (4221), 3348 states have call predecessors, (4221), 3493 states have call successors, (4221) [2022-07-12 14:21:54,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16167 states to 16167 states and 23457 transitions. [2022-07-12 14:21:54,076 INFO L78 Accepts]: Start accepts. Automaton has 16167 states and 23457 transitions. Word has length 405 [2022-07-12 14:21:54,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:21:54,077 INFO L495 AbstractCegarLoop]: Abstraction has 16167 states and 23457 transitions. [2022-07-12 14:21:54,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 3 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2022-07-12 14:21:54,078 INFO L276 IsEmpty]: Start isEmpty. Operand 16167 states and 23457 transitions. [2022-07-12 14:21:54,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2022-07-12 14:21:54,088 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:21:54,089 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 14:21:54,122 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-12 14:21:54,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 14:21:54,316 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:21:54,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:21:54,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1558670621, now seen corresponding path program 1 times [2022-07-12 14:21:54,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 14:21:54,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147969102] [2022-07-12 14:21:54,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:21:54,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 14:21:54,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:54,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 14:21:54,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:54,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:54,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:54,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:54,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:54,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 14:21:54,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:54,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:54,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:54,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:54,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:54,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 14:21:54,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:54,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:54,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:54,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:54,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:54,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 14:21:54,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:54,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:54,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:54,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:54,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:54,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 14:21:54,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:54,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:54,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:54,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:54,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:54,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 14:21:54,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:54,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:54,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:54,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:54,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:54,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 14:21:54,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:54,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:54,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:54,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:54,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:54,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 14:21:54,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:54,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:54,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:54,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:54,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:54,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 14:21:54,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:54,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:54,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:54,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-12 14:21:54,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:54,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:54,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:54,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-12 14:21:54,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:54,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:54,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:54,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-12 14:21:54,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:54,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:54,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:54,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 14:21:54,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:54,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:54,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:54,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-12 14:21:54,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:54,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:54,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:54,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-12 14:21:54,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:54,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:54,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:54,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-12 14:21:54,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:54,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:54,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:55,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:55,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:55,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-07-12 14:21:55,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:55,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:55,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:55,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:55,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:55,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-12 14:21:55,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:55,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2022-07-12 14:21:55,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:55,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:55,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:55,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2022-07-12 14:21:55,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:55,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:55,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:55,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:55,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:55,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-07-12 14:21:55,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:55,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:55,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:55,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:55,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:55,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 14:21:55,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:55,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 14:21:55,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:55,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:55,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:55,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 14:21:55,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:55,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2022-07-12 14:21:55,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:55,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2022-07-12 14:21:55,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:55,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2022-07-12 14:21:55,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:55,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:55,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:55,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-12 14:21:55,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:55,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-07-12 14:21:55,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:55,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2022-07-12 14:21:55,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:55,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:55,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:55,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2022-07-12 14:21:55,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:55,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 395 [2022-07-12 14:21:55,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:55,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:55,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:55,214 INFO L134 CoverageAnalysis]: Checked inductivity of 1076 backedges. 2 proven. 42 refuted. 0 times theorem prover too weak. 1032 trivial. 0 not checked. [2022-07-12 14:21:55,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 14:21:55,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147969102] [2022-07-12 14:21:55,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147969102] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 14:21:55,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1885072167] [2022-07-12 14:21:55,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:21:55,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 14:21:55,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 14:21:55,217 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 14:21:55,218 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-12 14:21:56,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:56,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 4033 conjuncts, 21 conjunts are in the unsatisfiable core [2022-07-12 14:21:56,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:21:56,634 INFO L134 CoverageAnalysis]: Checked inductivity of 1076 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1066 trivial. 0 not checked. [2022-07-12 14:21:56,634 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:21:56,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1885072167] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:21:56,634 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 14:21:56,634 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 19 [2022-07-12 14:21:56,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065875849] [2022-07-12 14:21:56,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:21:56,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-12 14:21:56,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 14:21:56,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-12 14:21:56,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2022-07-12 14:21:56,636 INFO L87 Difference]: Start difference. First operand 16167 states and 23457 transitions. Second operand has 10 states, 9 states have (on average 14.88888888888889) internal successors, (134), 8 states have internal predecessors, (134), 3 states have call successors, (48), 2 states have call predecessors, (48), 4 states have return successors, (41), 5 states have call predecessors, (41), 3 states have call successors, (41) [2022-07-12 14:21:57,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:21:57,352 INFO L93 Difference]: Finished difference Result 32324 states and 46909 transitions. [2022-07-12 14:21:57,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-12 14:21:57,353 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 14.88888888888889) internal successors, (134), 8 states have internal predecessors, (134), 3 states have call successors, (48), 2 states have call predecessors, (48), 4 states have return successors, (41), 5 states have call predecessors, (41), 3 states have call successors, (41) Word has length 418 [2022-07-12 14:21:57,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:21:57,421 INFO L225 Difference]: With dead ends: 32324 [2022-07-12 14:21:57,422 INFO L226 Difference]: Without dead ends: 16199 [2022-07-12 14:21:57,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 559 GetRequests, 540 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2022-07-12 14:21:57,481 INFO L413 NwaCegarLoop]: 3018 mSDtfsCounter, 13 mSDsluCounter, 18066 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 21084 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 14:21:57,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 21084 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 14:21:57,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16199 states. [2022-07-12 14:21:58,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16199 to 16187. [2022-07-12 14:21:58,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16187 states, 11511 states have (on average 1.3689514377551908) internal successors, (15758), 12099 states have internal predecessors, (15758), 3494 states have call successors, (3494), 1045 states have call predecessors, (3494), 1181 states have return successors, (4233), 3352 states have call predecessors, (4233), 3493 states have call successors, (4233) [2022-07-12 14:21:58,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16187 states to 16187 states and 23485 transitions. [2022-07-12 14:21:58,192 INFO L78 Accepts]: Start accepts. Automaton has 16187 states and 23485 transitions. Word has length 418 [2022-07-12 14:21:58,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:21:58,193 INFO L495 AbstractCegarLoop]: Abstraction has 16187 states and 23485 transitions. [2022-07-12 14:21:58,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 14.88888888888889) internal successors, (134), 8 states have internal predecessors, (134), 3 states have call successors, (48), 2 states have call predecessors, (48), 4 states have return successors, (41), 5 states have call predecessors, (41), 3 states have call successors, (41) [2022-07-12 14:21:58,193 INFO L276 IsEmpty]: Start isEmpty. Operand 16187 states and 23485 transitions. [2022-07-12 14:21:58,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2022-07-12 14:21:58,205 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:21:58,206 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 14:21:58,239 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-12 14:21:58,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-07-12 14:21:58,432 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:21:58,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:21:58,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1830622051, now seen corresponding path program 1 times [2022-07-12 14:21:58,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 14:21:58,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249283437] [2022-07-12 14:21:58,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:21:58,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 14:21:58,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:58,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 14:21:58,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:58,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:58,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:58,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:58,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:58,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 14:21:58,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:58,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:58,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:58,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:58,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:58,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 14:21:58,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:58,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:58,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:58,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:58,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:58,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 14:21:58,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:58,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:58,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:58,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:58,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:58,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 14:21:58,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:58,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:58,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:58,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:58,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:58,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 14:21:58,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:58,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:58,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:58,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:58,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:58,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 14:21:58,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:58,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:58,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:58,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:58,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:58,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 14:21:58,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:58,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:58,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:58,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:58,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:58,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 14:21:58,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:58,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:58,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:58,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-12 14:21:58,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:58,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:58,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:58,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-12 14:21:58,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:58,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:58,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:58,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-12 14:21:58,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:58,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:58,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:58,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 14:21:58,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:58,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:58,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:58,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-12 14:21:58,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:58,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:58,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:58,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-12 14:21:58,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:58,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:59,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:59,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-12 14:21:59,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:59,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:59,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:59,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:59,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:59,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-07-12 14:21:59,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:59,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:59,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:59,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:59,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:59,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-12 14:21:59,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:59,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2022-07-12 14:21:59,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:59,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:59,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:59,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2022-07-12 14:21:59,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:59,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:59,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:59,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:59,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:59,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-07-12 14:21:59,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:59,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:59,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:59,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:21:59,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:59,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 14:21:59,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:59,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 14:21:59,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:59,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:59,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:59,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 14:21:59,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:59,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2022-07-12 14:21:59,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:59,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2022-07-12 14:21:59,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:59,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2022-07-12 14:21:59,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:59,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:59,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:59,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-12 14:21:59,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:59,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-07-12 14:21:59,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:59,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2022-07-12 14:21:59,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:59,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:59,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:59,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2022-07-12 14:21:59,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:59,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 395 [2022-07-12 14:21:59,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:59,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:21:59,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:21:59,215 INFO L134 CoverageAnalysis]: Checked inductivity of 1076 backedges. 2 proven. 42 refuted. 0 times theorem prover too weak. 1032 trivial. 0 not checked. [2022-07-12 14:21:59,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 14:21:59,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249283437] [2022-07-12 14:21:59,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249283437] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 14:21:59,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1025464492] [2022-07-12 14:21:59,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:21:59,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 14:21:59,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 14:21:59,220 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 14:21:59,221 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-12 14:22:00,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:00,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 4053 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-12 14:22:00,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:22:00,869 INFO L134 CoverageAnalysis]: Checked inductivity of 1076 backedges. 497 proven. 0 refuted. 0 times theorem prover too weak. 579 trivial. 0 not checked. [2022-07-12 14:22:00,869 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 14:22:00,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1025464492] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 14:22:00,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 14:22:00,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 13 [2022-07-12 14:22:00,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400732441] [2022-07-12 14:22:00,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 14:22:00,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 14:22:00,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 14:22:00,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 14:22:00,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-07-12 14:22:00,872 INFO L87 Difference]: Start difference. First operand 16187 states and 23485 transitions. Second operand has 6 states, 5 states have (on average 30.2) internal successors, (151), 6 states have internal predecessors, (151), 3 states have call successors, (52), 2 states have call predecessors, (52), 4 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2022-07-12 14:22:01,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:22:01,530 INFO L93 Difference]: Finished difference Result 32369 states and 46978 transitions. [2022-07-12 14:22:01,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 14:22:01,531 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 30.2) internal successors, (151), 6 states have internal predecessors, (151), 3 states have call successors, (52), 2 states have call predecessors, (52), 4 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) Word has length 418 [2022-07-12 14:22:01,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:22:01,601 INFO L225 Difference]: With dead ends: 32369 [2022-07-12 14:22:01,601 INFO L226 Difference]: Without dead ends: 16191 [2022-07-12 14:22:01,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 559 GetRequests, 545 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2022-07-12 14:22:01,654 INFO L413 NwaCegarLoop]: 3023 mSDtfsCounter, 6 mSDsluCounter, 12067 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 15090 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 14:22:01,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 15090 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 14:22:01,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16191 states. [2022-07-12 14:22:02,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16191 to 16191. [2022-07-12 14:22:02,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16191 states, 11515 states have (on average 1.3688232739904473) internal successors, (15762), 12103 states have internal predecessors, (15762), 3494 states have call successors, (3494), 1045 states have call predecessors, (3494), 1181 states have return successors, (4233), 3352 states have call predecessors, (4233), 3493 states have call successors, (4233) [2022-07-12 14:22:02,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16191 states to 16191 states and 23489 transitions. [2022-07-12 14:22:02,364 INFO L78 Accepts]: Start accepts. Automaton has 16191 states and 23489 transitions. Word has length 418 [2022-07-12 14:22:02,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:22:02,364 INFO L495 AbstractCegarLoop]: Abstraction has 16191 states and 23489 transitions. [2022-07-12 14:22:02,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 30.2) internal successors, (151), 6 states have internal predecessors, (151), 3 states have call successors, (52), 2 states have call predecessors, (52), 4 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2022-07-12 14:22:02,365 INFO L276 IsEmpty]: Start isEmpty. Operand 16191 states and 23489 transitions. [2022-07-12 14:22:02,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2022-07-12 14:22:02,374 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:22:02,374 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 14:22:02,409 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-12 14:22:02,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 14:22:02,588 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:22:02,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:22:02,588 INFO L85 PathProgramCache]: Analyzing trace with hash 615269267, now seen corresponding path program 1 times [2022-07-12 14:22:02,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 14:22:02,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281920957] [2022-07-12 14:22:02,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:22:02,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 14:22:02,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:02,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 14:22:02,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:02,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:22:02,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:02,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:22:02,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:02,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 14:22:02,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:02,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:22:02,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:02,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:22:02,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:02,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 14:22:02,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:02,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:22:02,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:02,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:22:02,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:02,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 14:22:02,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:02,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:22:02,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:02,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:22:02,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:02,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 14:22:02,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:02,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:22:02,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:02,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:22:02,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:02,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 14:22:02,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:02,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:22:02,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:02,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:22:02,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:02,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 14:22:02,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:02,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:22:02,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:02,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:22:02,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:02,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 14:22:02,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:02,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:22:02,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:02,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:22:02,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:03,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 14:22:03,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:03,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:22:03,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:03,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-12 14:22:03,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:03,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:22:03,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:03,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-12 14:22:03,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:03,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:22:03,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:03,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-12 14:22:03,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:03,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:22:03,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:03,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-12 14:22:03,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:03,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:22:03,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:03,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-12 14:22:03,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:03,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:22:03,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:03,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-07-12 14:22:03,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:03,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:22:03,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:03,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-07-12 14:22:03,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:03,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:22:03,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:03,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:22:03,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:03,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-07-12 14:22:03,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:03,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:22:03,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:03,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:22:03,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:03,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2022-07-12 14:22:03,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:03,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-07-12 14:22:03,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:03,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:22:03,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:03,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-07-12 14:22:03,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:03,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:22:03,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:03,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:22:03,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:03,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2022-07-12 14:22:03,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:03,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:22:03,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:03,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:22:03,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:03,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 14:22:03,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:03,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 14:22:03,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:03,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:22:03,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:03,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 14:22:03,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:03,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2022-07-12 14:22:03,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:03,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-07-12 14:22:03,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:03,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2022-07-12 14:22:03,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:03,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:22:03,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:03,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-12 14:22:03,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:03,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2022-07-12 14:22:03,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:03,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2022-07-12 14:22:03,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:03,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:22:03,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:03,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 401 [2022-07-12 14:22:03,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:03,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:22:03,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:03,475 INFO L134 CoverageAnalysis]: Checked inductivity of 1148 backedges. 2 proven. 61 refuted. 0 times theorem prover too weak. 1085 trivial. 0 not checked. [2022-07-12 14:22:03,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 14:22:03,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281920957] [2022-07-12 14:22:03,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281920957] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 14:22:03,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1157668684] [2022-07-12 14:22:03,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:22:03,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 14:22:03,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 14:22:03,477 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 14:22:03,506 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-12 14:22:04,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:04,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 4216 conjuncts, 16 conjunts are in the unsatisfiable core [2022-07-12 14:22:04,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:22:04,991 INFO L134 CoverageAnalysis]: Checked inductivity of 1148 backedges. 528 proven. 3 refuted. 0 times theorem prover too weak. 617 trivial. 0 not checked. [2022-07-12 14:22:04,992 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 14:22:05,545 INFO L134 CoverageAnalysis]: Checked inductivity of 1148 backedges. 12 proven. 51 refuted. 0 times theorem prover too weak. 1085 trivial. 0 not checked. [2022-07-12 14:22:05,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1157668684] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 14:22:05,545 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-12 14:22:05,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 7, 7] total 19 [2022-07-12 14:22:05,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296397997] [2022-07-12 14:22:05,545 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-12 14:22:05,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-12 14:22:05,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 14:22:05,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-12 14:22:05,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2022-07-12 14:22:05,547 INFO L87 Difference]: Start difference. First operand 16191 states and 23489 transitions. Second operand has 19 states, 17 states have (on average 12.705882352941176) internal successors, (216), 14 states have internal predecessors, (216), 4 states have call successors, (107), 7 states have call predecessors, (107), 7 states have return successors, (74), 5 states have call predecessors, (74), 4 states have call successors, (74) [2022-07-12 14:22:28,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:22:28,786 INFO L93 Difference]: Finished difference Result 40729 states and 62189 transitions. [2022-07-12 14:22:28,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-12 14:22:28,788 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 12.705882352941176) internal successors, (216), 14 states have internal predecessors, (216), 4 states have call successors, (107), 7 states have call predecessors, (107), 7 states have return successors, (74), 5 states have call predecessors, (74), 4 states have call successors, (74) Word has length 426 [2022-07-12 14:22:28,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:22:28,874 INFO L225 Difference]: With dead ends: 40729 [2022-07-12 14:22:28,874 INFO L226 Difference]: Without dead ends: 24547 [2022-07-12 14:22:28,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1010 GetRequests, 975 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=200, Invalid=922, Unknown=0, NotChecked=0, Total=1122 [2022-07-12 14:22:28,914 INFO L413 NwaCegarLoop]: 2891 mSDtfsCounter, 5994 mSDsluCounter, 22052 mSDsCounter, 0 mSdLazyCounter, 18308 mSolverCounterSat, 4887 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6244 SdHoareTripleChecker+Valid, 24943 SdHoareTripleChecker+Invalid, 23195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4887 IncrementalHoareTripleChecker+Valid, 18308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.6s IncrementalHoareTripleChecker+Time [2022-07-12 14:22:28,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6244 Valid, 24943 Invalid, 23195 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4887 Valid, 18308 Invalid, 0 Unknown, 0 Unchecked, 21.6s Time] [2022-07-12 14:22:28,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24547 states. [2022-07-12 14:22:29,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24547 to 16200. [2022-07-12 14:22:29,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16200 states, 11522 states have (on average 1.3685992015275126) internal successors, (15769), 12110 states have internal predecessors, (15769), 3495 states have call successors, (3495), 1046 states have call predecessors, (3495), 1182 states have return successors, (4234), 3353 states have call predecessors, (4234), 3494 states have call successors, (4234) [2022-07-12 14:22:29,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16200 states to 16200 states and 23498 transitions. [2022-07-12 14:22:29,671 INFO L78 Accepts]: Start accepts. Automaton has 16200 states and 23498 transitions. Word has length 426 [2022-07-12 14:22:29,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:22:29,672 INFO L495 AbstractCegarLoop]: Abstraction has 16200 states and 23498 transitions. [2022-07-12 14:22:29,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 12.705882352941176) internal successors, (216), 14 states have internal predecessors, (216), 4 states have call successors, (107), 7 states have call predecessors, (107), 7 states have return successors, (74), 5 states have call predecessors, (74), 4 states have call successors, (74) [2022-07-12 14:22:29,673 INFO L276 IsEmpty]: Start isEmpty. Operand 16200 states and 23498 transitions. [2022-07-12 14:22:29,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 433 [2022-07-12 14:22:29,682 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:22:29,682 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 13, 13, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 14:22:29,720 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-12 14:22:29,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 14:22:29,908 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:22:29,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:22:29,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1799233597, now seen corresponding path program 1 times [2022-07-12 14:22:29,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 14:22:29,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519721902] [2022-07-12 14:22:29,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:22:29,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 14:22:30,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:30,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 14:22:30,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:30,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:22:30,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:30,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:22:30,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:30,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 14:22:30,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:30,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:22:30,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:30,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:22:30,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:30,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 14:22:30,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:30,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:22:30,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:30,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:22:30,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:30,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 14:22:30,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:30,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:22:30,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:30,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:22:30,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:30,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 14:22:30,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:30,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:22:30,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:30,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:22:30,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:30,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 14:22:30,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:30,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:22:30,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:30,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:22:30,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:30,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 14:22:30,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:30,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:22:30,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:30,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:22:30,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:30,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 14:22:30,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:30,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:22:30,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:30,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:22:30,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:30,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 14:22:30,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:30,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:22:30,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:30,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-12 14:22:30,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:30,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:22:30,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:30,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-12 14:22:30,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:30,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:22:30,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:30,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-12 14:22:30,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:30,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:22:30,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:30,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-12 14:22:30,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:30,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:22:30,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:30,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-07-12 14:22:30,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:30,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:22:30,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:30,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2022-07-12 14:22:30,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:30,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:22:30,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:30,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-07-12 14:22:30,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:30,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:22:30,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:30,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:22:30,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:30,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2022-07-12 14:22:30,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:30,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:22:30,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:30,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:22:30,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:30,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-07-12 14:22:30,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:30,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2022-07-12 14:22:30,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:30,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:22:30,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:30,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2022-07-12 14:22:30,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:30,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:22:30,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:30,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:22:30,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:30,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-07-12 14:22:30,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:30,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:22:30,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:30,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:22:30,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:30,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 14:22:30,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:30,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 14:22:30,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:30,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:22:30,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:30,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 14:22:30,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:30,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2022-07-12 14:22:30,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:30,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-07-12 14:22:30,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:30,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2022-07-12 14:22:30,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:30,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:22:30,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:30,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-12 14:22:30,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:30,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2022-07-12 14:22:30,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:30,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2022-07-12 14:22:30,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:30,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:22:30,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:30,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 403 [2022-07-12 14:22:30,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:30,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2022-07-12 14:22:30,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:30,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:22:30,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:30,971 INFO L134 CoverageAnalysis]: Checked inductivity of 1265 backedges. 2 proven. 93 refuted. 0 times theorem prover too weak. 1170 trivial. 0 not checked. [2022-07-12 14:22:30,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 14:22:30,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519721902] [2022-07-12 14:22:30,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519721902] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 14:22:30,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1630303990] [2022-07-12 14:22:30,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:22:30,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 14:22:30,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 14:22:30,974 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 14:22:30,975 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-12 14:22:32,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:22:32,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 4263 conjuncts, 14 conjunts are in the unsatisfiable core [2022-07-12 14:22:32,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:22:32,717 INFO L134 CoverageAnalysis]: Checked inductivity of 1265 backedges. 502 proven. 3 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2022-07-12 14:22:32,718 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 14:22:33,346 INFO L134 CoverageAnalysis]: Checked inductivity of 1265 backedges. 2 proven. 93 refuted. 0 times theorem prover too weak. 1170 trivial. 0 not checked. [2022-07-12 14:22:33,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1630303990] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 14:22:33,346 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-12 14:22:33,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 8, 8] total 21 [2022-07-12 14:22:33,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968473759] [2022-07-12 14:22:33,347 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-12 14:22:33,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-07-12 14:22:33,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 14:22:33,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-07-12 14:22:33,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=365, Unknown=0, NotChecked=0, Total=420 [2022-07-12 14:22:33,349 INFO L87 Difference]: Start difference. First operand 16200 states and 23498 transitions. Second operand has 21 states, 19 states have (on average 11.736842105263158) internal successors, (223), 16 states have internal predecessors, (223), 4 states have call successors, (112), 7 states have call predecessors, (112), 6 states have return successors, (77), 4 states have call predecessors, (77), 4 states have call successors, (77) [2022-07-12 14:23:13,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 14:23:13,783 INFO L93 Difference]: Finished difference Result 40745 states and 62204 transitions. [2022-07-12 14:23:13,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-07-12 14:23:13,784 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 11.736842105263158) internal successors, (223), 16 states have internal predecessors, (223), 4 states have call successors, (112), 7 states have call predecessors, (112), 6 states have return successors, (77), 4 states have call predecessors, (77), 4 states have call successors, (77) Word has length 432 [2022-07-12 14:23:13,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 14:23:13,864 INFO L225 Difference]: With dead ends: 40745 [2022-07-12 14:23:13,864 INFO L226 Difference]: Without dead ends: 24551 [2022-07-12 14:23:13,907 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1029 GetRequests, 987 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 348 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=274, Invalid=1448, Unknown=0, NotChecked=0, Total=1722 [2022-07-12 14:23:13,907 INFO L413 NwaCegarLoop]: 2880 mSDtfsCounter, 4714 mSDsluCounter, 29887 mSDsCounter, 0 mSdLazyCounter, 24465 mSolverCounterSat, 3265 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4957 SdHoareTripleChecker+Valid, 32767 SdHoareTripleChecker+Invalid, 27730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3265 IncrementalHoareTripleChecker+Valid, 24465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.6s IncrementalHoareTripleChecker+Time [2022-07-12 14:23:13,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4957 Valid, 32767 Invalid, 27730 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3265 Valid, 24465 Invalid, 0 Unknown, 0 Unchecked, 38.6s Time] [2022-07-12 14:23:13,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24551 states. [2022-07-12 14:23:14,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24551 to 16204. [2022-07-12 14:23:14,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16204 states, 11526 states have (on average 1.368471282318237) internal successors, (15773), 12114 states have internal predecessors, (15773), 3495 states have call successors, (3495), 1046 states have call predecessors, (3495), 1182 states have return successors, (4234), 3353 states have call predecessors, (4234), 3494 states have call successors, (4234) [2022-07-12 14:23:14,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16204 states to 16204 states and 23502 transitions. [2022-07-12 14:23:14,700 INFO L78 Accepts]: Start accepts. Automaton has 16204 states and 23502 transitions. Word has length 432 [2022-07-12 14:23:14,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 14:23:14,701 INFO L495 AbstractCegarLoop]: Abstraction has 16204 states and 23502 transitions. [2022-07-12 14:23:14,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 11.736842105263158) internal successors, (223), 16 states have internal predecessors, (223), 4 states have call successors, (112), 7 states have call predecessors, (112), 6 states have return successors, (77), 4 states have call predecessors, (77), 4 states have call successors, (77) [2022-07-12 14:23:14,701 INFO L276 IsEmpty]: Start isEmpty. Operand 16204 states and 23502 transitions. [2022-07-12 14:23:14,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 440 [2022-07-12 14:23:14,710 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 14:23:14,710 INFO L195 NwaCegarLoop]: trace histogram [21, 13, 13, 13, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 14:23:14,750 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-12 14:23:14,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-07-12 14:23:14,924 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 14:23:14,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 14:23:14,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1638384680, now seen corresponding path program 2 times [2022-07-12 14:23:14,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 14:23:14,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263487336] [2022-07-12 14:23:14,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 14:23:14,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 14:23:15,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:15,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 14:23:15,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:15,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:23:15,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:15,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:23:15,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:15,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 14:23:15,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:15,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:23:15,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:15,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:23:15,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:15,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 14:23:15,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:15,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:23:15,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:15,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:23:15,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:15,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 14:23:15,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:15,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:23:15,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:15,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:23:15,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:15,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 14:23:15,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:15,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:23:15,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:15,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:23:15,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:15,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 14:23:15,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:15,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:23:15,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:15,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:23:15,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:15,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 14:23:15,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:15,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:23:15,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:15,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:23:15,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:15,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 14:23:15,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:15,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:23:15,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:15,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:23:15,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:15,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 14:23:15,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:15,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:23:15,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:15,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-12 14:23:15,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:15,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:23:15,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:15,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-12 14:23:15,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:15,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:23:15,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:15,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-12 14:23:15,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:15,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:23:15,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:15,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2022-07-12 14:23:15,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:15,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:23:15,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:15,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-07-12 14:23:15,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:15,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:23:15,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:15,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-07-12 14:23:15,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:15,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:23:15,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:15,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-07-12 14:23:15,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:15,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:23:15,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:15,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:23:15,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:15,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-07-12 14:23:15,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:15,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:23:15,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:15,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:23:15,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:15,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2022-07-12 14:23:15,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:15,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-07-12 14:23:15,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:15,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:23:15,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:15,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-07-12 14:23:15,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:15,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:23:15,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:15,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:23:15,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:15,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2022-07-12 14:23:15,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:15,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:23:15,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:15,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 14:23:15,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:15,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 14:23:15,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:15,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 14:23:15,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:15,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:23:15,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:15,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 14:23:15,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:15,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2022-07-12 14:23:15,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:15,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2022-07-12 14:23:15,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:15,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2022-07-12 14:23:15,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:15,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:23:15,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:15,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-12 14:23:15,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:15,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2022-07-12 14:23:15,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:15,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2022-07-12 14:23:15,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:15,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:23:15,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:15,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2022-07-12 14:23:15,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:15,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2022-07-12 14:23:15,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:15,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 14:23:15,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 14:23:15,988 INFO L134 CoverageAnalysis]: Checked inductivity of 1433 backedges. 2 proven. 138 refuted. 0 times theorem prover too weak. 1293 trivial. 0 not checked. [2022-07-12 14:23:15,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 14:23:15,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263487336] [2022-07-12 14:23:15,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263487336] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 14:23:15,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1966707778] [2022-07-12 14:23:15,989 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 14:23:15,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 14:23:15,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 14:23:15,990 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) [2022-07-12 14:23:15,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-12 14:23:18,397 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-12 14:23:18,397 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 14:23:18,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 4368 conjuncts, 24 conjunts are in the unsatisfiable core [2022-07-12 14:23:18,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 14:23:19,496 INFO L134 CoverageAnalysis]: Checked inductivity of 1433 backedges. 650 proven. 21 refuted. 0 times theorem prover too weak. 762 trivial. 0 not checked. [2022-07-12 14:23:19,496 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 14:23:20,707 INFO L134 CoverageAnalysis]: Checked inductivity of 1433 backedges. 24 proven. 116 refuted. 0 times theorem prover too weak. 1293 trivial. 0 not checked. [2022-07-12 14:23:20,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1966707778] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 14:23:20,707 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-12 14:23:20,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 9, 9] total 24 [2022-07-12 14:23:20,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131065120] [2022-07-12 14:23:20,708 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-12 14:23:20,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-07-12 14:23:20,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 14:23:20,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-07-12 14:23:20,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=488, Unknown=0, NotChecked=0, Total=552 [2022-07-12 14:23:20,710 INFO L87 Difference]: Start difference. First operand 16204 states and 23502 transitions. Second operand has 24 states, 22 states have (on average 10.409090909090908) internal successors, (229), 19 states have internal predecessors, (229), 4 states have call successors, (111), 7 states have call predecessors, (111), 7 states have return successors, (78), 5 states have call predecessors, (78), 4 states have call successors, (78) [2022-07-12 14:23:32,572 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:23:34,638 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:23:36,705 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:23:38,771 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:23:40,840 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:23:45,144 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:23:48,312 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:23:50,378 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 14:23:52,459 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []