./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point_ldv-val-v0.8.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point_ldv-val-v0.8.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash bf5e73d985bafa5e008f16fba6fb54da90c4b127699bd918a748611ea9b79793 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 00:45:18,330 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 00:45:18,331 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 00:45:18,366 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 00:45:18,367 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 00:45:18,367 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 00:45:18,369 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 00:45:18,370 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 00:45:18,372 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 00:45:18,373 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 00:45:18,374 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 00:45:18,375 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 00:45:18,375 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 00:45:18,376 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 00:45:18,377 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 00:45:18,378 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 00:45:18,378 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 00:45:18,379 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 00:45:18,381 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 00:45:18,382 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 00:45:18,384 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 00:45:18,384 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 00:45:18,385 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 00:45:18,386 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 00:45:18,387 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 00:45:18,390 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 00:45:18,390 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 00:45:18,390 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 00:45:18,391 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 00:45:18,391 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 00:45:18,392 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 00:45:18,393 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 00:45:18,393 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 00:45:18,394 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 00:45:18,395 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 00:45:18,395 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 00:45:18,396 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 00:45:18,396 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 00:45:18,396 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 00:45:18,397 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 00:45:18,397 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 00:45:18,398 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 00:45:18,399 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-14 00:45:18,419 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 00:45:18,419 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 00:45:18,420 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 00:45:18,420 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 00:45:18,421 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 00:45:18,421 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 00:45:18,421 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 00:45:18,421 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 00:45:18,422 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 00:45:18,422 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 00:45:18,422 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 00:45:18,422 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 00:45:18,422 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 00:45:18,422 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 00:45:18,423 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 00:45:18,423 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 00:45:18,423 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 00:45:18,423 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 00:45:18,423 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 00:45:18,423 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 00:45:18,424 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 00:45:18,424 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 00:45:18,424 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 00:45:18,424 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 00:45:18,424 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 00:45:18,425 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 00:45:18,425 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 00:45:18,425 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 00:45:18,425 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 00:45:18,425 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 00:45:18,425 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf5e73d985bafa5e008f16fba6fb54da90c4b127699bd918a748611ea9b79793 [2022-07-14 00:45:18,632 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 00:45:18,653 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 00:45:18,656 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 00:45:18,656 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 00:45:18,657 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 00:45:18,658 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-07-14 00:45:18,712 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b267f9f9/f8f1c064a82a48b18b05e41aa7bfea2c/FLAG82dbc4f8d [2022-07-14 00:45:19,345 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 00:45:19,346 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-07-14 00:45:19,372 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b267f9f9/f8f1c064a82a48b18b05e41aa7bfea2c/FLAG82dbc4f8d [2022-07-14 00:45:19,679 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b267f9f9/f8f1c064a82a48b18b05e41aa7bfea2c [2022-07-14 00:45:19,681 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 00:45:19,682 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 00:45:19,683 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 00:45:19,683 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 00:45:19,686 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 00:45:19,686 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:45:19" (1/1) ... [2022-07-14 00:45:19,687 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54be98e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:45:19, skipping insertion in model container [2022-07-14 00:45:19,687 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:45:19" (1/1) ... [2022-07-14 00:45:19,693 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 00:45:19,776 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 00:45:20,657 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point_ldv-val-v0.8.cil.out.i[158797,158810] [2022-07-14 00:45:20,692 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 00:45:20,736 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 00:45:20,965 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point_ldv-val-v0.8.cil.out.i[158797,158810] [2022-07-14 00:45:20,978 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 00:45:21,037 INFO L208 MainTranslator]: Completed translation [2022-07-14 00:45:21,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:45:21 WrapperNode [2022-07-14 00:45:21,039 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 00:45:21,040 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 00:45:21,040 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 00:45:21,041 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 00:45:21,046 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:45:21" (1/1) ... [2022-07-14 00:45:21,110 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:45:21" (1/1) ... [2022-07-14 00:45:21,228 INFO L137 Inliner]: procedures = 189, calls = 1290, calls flagged for inlining = 74, calls inlined = 74, statements flattened = 3345 [2022-07-14 00:45:21,229 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 00:45:21,230 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 00:45:21,230 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 00:45:21,230 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 00:45:21,238 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:45:21" (1/1) ... [2022-07-14 00:45:21,238 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:45:21" (1/1) ... [2022-07-14 00:45:21,256 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:45:21" (1/1) ... [2022-07-14 00:45:21,257 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:45:21" (1/1) ... [2022-07-14 00:45:21,347 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:45:21" (1/1) ... [2022-07-14 00:45:21,370 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:45:21" (1/1) ... [2022-07-14 00:45:21,397 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:45:21" (1/1) ... [2022-07-14 00:45:21,424 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 00:45:21,426 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 00:45:21,426 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 00:45:21,426 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 00:45:21,427 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:45:21" (1/1) ... [2022-07-14 00:45:21,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 00:45:21,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:45:21,463 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) [2022-07-14 00:45:21,513 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 [2022-07-14 00:45:21,527 INFO L130 BoogieDeclarations]: Found specification of procedure printer_req_free [2022-07-14 00:45:21,528 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_req_free [2022-07-14 00:45:21,528 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2022-07-14 00:45:21,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2022-07-14 00:45:21,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_nonpositive [2022-07-14 00:45:21,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_nonpositive [2022-07-14 00:45:21,528 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-07-14 00:45:21,528 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-07-14 00:45:21,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-14 00:45:21,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-14 00:45:21,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-14 00:45:21,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-14 00:45:21,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-14 00:45:21,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-14 00:45:21,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-14 00:45:21,530 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-14 00:45:21,530 INFO L130 BoogieDeclarations]: Found specification of procedure get_gadget_data [2022-07-14 00:45:21,531 INFO L138 BoogieDeclarations]: Found implementation of procedure get_gadget_data [2022-07-14 00:45:21,531 INFO L130 BoogieDeclarations]: Found specification of procedure printer_poll [2022-07-14 00:45:21,531 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_poll [2022-07-14 00:45:21,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-14 00:45:21,531 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-14 00:45:21,532 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_free_request [2022-07-14 00:45:21,532 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_free_request [2022-07-14 00:45:21,532 INFO L130 BoogieDeclarations]: Found specification of procedure printer_reset_interface [2022-07-14 00:45:21,532 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_reset_interface [2022-07-14 00:45:21,532 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-14 00:45:21,532 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-14 00:45:21,532 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-14 00:45:21,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-14 00:45:21,533 INFO L130 BoogieDeclarations]: Found specification of procedure printer_soft_reset [2022-07-14 00:45:21,533 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_soft_reset [2022-07-14 00:45:21,533 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_class [2022-07-14 00:45:21,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_class [2022-07-14 00:45:21,534 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-07-14 00:45:21,534 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-07-14 00:45:21,534 INFO L130 BoogieDeclarations]: Found specification of procedure set_printer_interface [2022-07-14 00:45:21,534 INFO L138 BoogieDeclarations]: Found implementation of procedure set_printer_interface [2022-07-14 00:45:21,534 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rx_reqs [2022-07-14 00:45:21,535 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rx_reqs [2022-07-14 00:45:21,535 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2022-07-14 00:45:21,535 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2022-07-14 00:45:21,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-14 00:45:21,535 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-14 00:45:21,535 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-14 00:45:21,536 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-14 00:45:21,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-14 00:45:21,536 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_queue [2022-07-14 00:45:21,536 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_queue [2022-07-14 00:45:21,536 INFO L130 BoogieDeclarations]: Found specification of procedure set_interface [2022-07-14 00:45:21,536 INFO L138 BoogieDeclarations]: Found implementation of procedure set_interface [2022-07-14 00:45:21,536 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup_complete [2022-07-14 00:45:21,536 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup_complete [2022-07-14 00:45:21,537 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-14 00:45:21,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-14 00:45:21,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-14 00:45:21,538 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-14 00:45:21,538 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_vbus_draw [2022-07-14 00:45:21,538 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_vbus_draw [2022-07-14 00:45:21,539 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-14 00:45:21,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-14 00:45:21,539 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-14 00:45:21,539 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-14 00:45:21,539 INFO L130 BoogieDeclarations]: Found specification of procedure printer_write [2022-07-14 00:45:21,540 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_write [2022-07-14 00:45:21,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-14 00:45:21,540 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2022-07-14 00:45:21,540 INFO L130 BoogieDeclarations]: Found specification of procedure printer_unbind [2022-07-14 00:45:21,540 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_unbind [2022-07-14 00:45:21,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-14 00:45:21,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-14 00:45:21,541 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-14 00:45:21,541 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-14 00:45:21,542 INFO L130 BoogieDeclarations]: Found specification of procedure printer_close [2022-07-14 00:45:21,542 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_close [2022-07-14 00:45:21,542 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-07-14 00:45:21,542 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-07-14 00:45:21,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 00:45:21,542 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2022-07-14 00:45:21,542 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2022-07-14 00:45:21,543 INFO L130 BoogieDeclarations]: Found specification of procedure printer_fsync [2022-07-14 00:45:21,543 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_fsync [2022-07-14 00:45:21,543 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-14 00:45:21,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-14 00:45:21,543 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 00:45:21,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-14 00:45:21,544 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-14 00:45:21,544 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-14 00:45:21,544 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-14 00:45:21,544 INFO L130 BoogieDeclarations]: Found specification of procedure init_utsname [2022-07-14 00:45:21,544 INFO L138 BoogieDeclarations]: Found implementation of procedure init_utsname [2022-07-14 00:45:21,545 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_enable [2022-07-14 00:45:21,545 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_enable [2022-07-14 00:45:21,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-14 00:45:21,545 INFO L130 BoogieDeclarations]: Found specification of procedure printer_open [2022-07-14 00:45:21,546 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_open [2022-07-14 00:45:21,546 INFO L130 BoogieDeclarations]: Found specification of procedure printer_bind [2022-07-14 00:45:21,546 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_bind [2022-07-14 00:45:21,546 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-07-14 00:45:21,547 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-07-14 00:45:21,547 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-14 00:45:21,547 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-14 00:45:21,547 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-14 00:45:21,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-14 00:45:21,548 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-07-14 00:45:21,548 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-07-14 00:45:21,548 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-14 00:45:21,548 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-14 00:45:21,548 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-07-14 00:45:21,548 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-07-14 00:45:21,548 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_autoconfig [2022-07-14 00:45:21,549 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_autoconfig [2022-07-14 00:45:21,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 00:45:21,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-14 00:45:21,549 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-07-14 00:45:21,549 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-07-14 00:45:21,550 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2022-07-14 00:45:21,550 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2022-07-14 00:45:21,551 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-14 00:45:21,555 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-14 00:45:21,555 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup [2022-07-14 00:45:21,555 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup [2022-07-14 00:45:21,555 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-07-14 00:45:21,556 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-07-14 00:45:21,556 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev_region [2022-07-14 00:45:21,556 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev_region [2022-07-14 00:45:21,556 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-14 00:45:21,556 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-14 00:45:21,556 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-14 00:45:21,556 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-14 00:45:21,557 INFO L130 BoogieDeclarations]: Found specification of procedure set_gadget_data [2022-07-14 00:45:21,557 INFO L138 BoogieDeclarations]: Found implementation of procedure set_gadget_data [2022-07-14 00:45:21,557 INFO L130 BoogieDeclarations]: Found specification of procedure printer_req_alloc [2022-07-14 00:45:21,557 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_req_alloc [2022-07-14 00:45:21,557 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-14 00:45:21,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-14 00:45:21,558 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-14 00:45:21,558 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-14 00:45:21,558 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_disable [2022-07-14 00:45:21,558 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_disable [2022-07-14 00:45:21,558 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-07-14 00:45:21,558 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-07-14 00:45:21,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_region [2022-07-14 00:45:21,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_region [2022-07-14 00:45:21,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 00:45:21,559 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-07-14 00:45:21,559 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-07-14 00:45:21,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-14 00:45:21,559 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-07-14 00:45:21,559 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-07-14 00:45:21,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 00:45:21,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 00:45:21,560 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-14 00:45:21,560 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-14 00:45:22,064 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 00:45:22,067 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 00:45:22,289 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-14 00:45:36,894 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 00:45:36,913 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 00:45:36,914 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-14 00:45:36,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:45:36 BoogieIcfgContainer [2022-07-14 00:45:36,918 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 00:45:36,921 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 00:45:36,921 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 00:45:36,924 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 00:45:36,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 12:45:19" (1/3) ... [2022-07-14 00:45:36,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eb080d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:45:36, skipping insertion in model container [2022-07-14 00:45:36,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:45:21" (2/3) ... [2022-07-14 00:45:36,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eb080d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:45:36, skipping insertion in model container [2022-07-14 00:45:36,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:45:36" (3/3) ... [2022-07-14 00:45:36,928 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-07-14 00:45:36,940 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 00:45:36,940 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-14 00:45:37,032 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 00:45:37,039 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@8562d30, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5cab2a0c [2022-07-14 00:45:37,039 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-14 00:45:37,048 INFO L276 IsEmpty]: Start isEmpty. Operand has 1280 states, 888 states have (on average 1.3952702702702702) internal successors, (1239), 931 states have internal predecessors, (1239), 323 states have call successors, (323), 68 states have call predecessors, (323), 67 states have return successors, (318), 315 states have call predecessors, (318), 318 states have call successors, (318) [2022-07-14 00:45:37,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-07-14 00:45:37,075 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:45:37,076 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:45:37,077 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:45:37,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:45:37,083 INFO L85 PathProgramCache]: Analyzing trace with hash 856014452, now seen corresponding path program 1 times [2022-07-14 00:45:37,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:45:37,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106463291] [2022-07-14 00:45:37,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:45:37,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:45:37,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:45:37,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:45:37,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:45:37,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:45:37,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:45:37,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:45:37,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:45:37,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 00:45:37,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:45:37,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:45:37,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:45:37,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:45:37,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:45:37,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 00:45:37,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:45:37,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:45:37,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:45:37,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:45:37,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:45:37,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:45:37,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:45:37,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:45:37,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:45:37,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:45:37,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:45:37,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 00:45:37,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:45:37,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:45:37,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:45:37,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:45:37,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:45:37,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-14 00:45:37,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:45:37,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:45:37,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:45:37,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:45:37,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:45:37,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-14 00:45:37,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:45:37,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:45:37,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:45:37,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-14 00:45:38,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:45:38,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:45:38,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:45:38,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-14 00:45:38,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:45:38,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:45:38,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:45:38,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-14 00:45:38,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:45:38,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:45:38,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:45:38,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-14 00:45:38,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:45:38,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:45:38,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:45:38,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-07-14 00:45:38,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:45:38,093 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2022-07-14 00:45:38,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:45:38,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106463291] [2022-07-14 00:45:38,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106463291] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:45:38,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:45:38,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 00:45:38,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927330828] [2022-07-14 00:45:38,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:45:38,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 00:45:38,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:45:38,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 00:45:38,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-14 00:45:38,144 INFO L87 Difference]: Start difference. First operand has 1280 states, 888 states have (on average 1.3952702702702702) internal successors, (1239), 931 states have internal predecessors, (1239), 323 states have call successors, (323), 68 states have call predecessors, (323), 67 states have return successors, (318), 315 states have call predecessors, (318), 318 states have call successors, (318) Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-14 00:45:40,195 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:45:42,262 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:45:47,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:45:47,344 INFO L93 Difference]: Finished difference Result 3013 states and 4615 transitions. [2022-07-14 00:45:47,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 00:45:47,346 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 171 [2022-07-14 00:45:47,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:45:47,381 INFO L225 Difference]: With dead ends: 3013 [2022-07-14 00:45:47,382 INFO L226 Difference]: Without dead ends: 1726 [2022-07-14 00:45:47,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-07-14 00:45:47,396 INFO L413 NwaCegarLoop]: 1709 mSDtfsCounter, 2092 mSDsluCounter, 1558 mSDsCounter, 0 mSdLazyCounter, 1111 mSolverCounterSat, 1908 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2171 SdHoareTripleChecker+Valid, 3267 SdHoareTripleChecker+Invalid, 3021 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1908 IncrementalHoareTripleChecker+Valid, 1111 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2022-07-14 00:45:47,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2171 Valid, 3267 Invalid, 3021 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1908 Valid, 1111 Invalid, 2 Unknown, 0 Unchecked, 8.9s Time] [2022-07-14 00:45:47,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1726 states. [2022-07-14 00:45:47,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1726 to 1268. [2022-07-14 00:45:47,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1268 states, 883 states have (on average 1.3556058890147225) internal successors, (1197), 919 states have internal predecessors, (1197), 318 states have call successors, (318), 67 states have call predecessors, (318), 66 states have return successors, (305), 302 states have call predecessors, (305), 305 states have call successors, (305) [2022-07-14 00:45:47,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1268 states to 1268 states and 1820 transitions. [2022-07-14 00:45:47,625 INFO L78 Accepts]: Start accepts. Automaton has 1268 states and 1820 transitions. Word has length 171 [2022-07-14 00:45:47,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:45:47,626 INFO L495 AbstractCegarLoop]: Abstraction has 1268 states and 1820 transitions. [2022-07-14 00:45:47,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-14 00:45:47,627 INFO L276 IsEmpty]: Start isEmpty. Operand 1268 states and 1820 transitions. [2022-07-14 00:45:47,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-07-14 00:45:47,636 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:45:47,636 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:45:47,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-14 00:45:47,637 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:45:47,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:45:47,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1904344856, now seen corresponding path program 1 times [2022-07-14 00:45:47,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:45:47,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946438730] [2022-07-14 00:45:47,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:45:47,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:45:47,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:45:47,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:45:47,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:45:48,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:45:48,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:45:48,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:45:48,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:45:48,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 00:45:48,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:45:48,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:45:48,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:45:48,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:45:48,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:45:48,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 00:45:48,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:45:48,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:45:48,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:45:48,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:45:48,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:45:48,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:45:48,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:45:48,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:45:48,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:45:48,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:45:48,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:45:48,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 00:45:48,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:45:48,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:45:48,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:45:48,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:45:48,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:45:48,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-14 00:45:48,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:45:48,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:45:48,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:45:48,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:45:48,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:45:48,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-14 00:45:48,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:45:48,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:45:48,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:45:48,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-14 00:45:48,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:45:48,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:45:48,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:45:48,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-14 00:45:48,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:45:48,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:45:48,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:45:48,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-14 00:45:48,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:45:48,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:45:48,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:45:48,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-14 00:45:48,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:45:48,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:45:48,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:45:48,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-07-14 00:45:48,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:45:48,214 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2022-07-14 00:45:48,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:45:48,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946438730] [2022-07-14 00:45:48,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946438730] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:45:48,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:45:48,215 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 00:45:48,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676971230] [2022-07-14 00:45:48,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:45:48,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 00:45:48,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:45:48,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 00:45:48,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-07-14 00:45:48,220 INFO L87 Difference]: Start difference. First operand 1268 states and 1820 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-14 00:45:50,252 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:45:52,289 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:45:54,322 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:46:07,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:46:07,832 INFO L93 Difference]: Finished difference Result 3390 states and 5095 transitions. [2022-07-14 00:46:07,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-14 00:46:07,833 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 171 [2022-07-14 00:46:07,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:46:07,855 INFO L225 Difference]: With dead ends: 3390 [2022-07-14 00:46:07,855 INFO L226 Difference]: Without dead ends: 3366 [2022-07-14 00:46:07,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-07-14 00:46:07,858 INFO L413 NwaCegarLoop]: 1883 mSDtfsCounter, 4411 mSDsluCounter, 4082 mSDsCounter, 0 mSdLazyCounter, 4421 mSolverCounterSat, 2282 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4695 SdHoareTripleChecker+Valid, 5965 SdHoareTripleChecker+Invalid, 6706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2282 IncrementalHoareTripleChecker+Valid, 4421 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.1s IncrementalHoareTripleChecker+Time [2022-07-14 00:46:07,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4695 Valid, 5965 Invalid, 6706 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2282 Valid, 4421 Invalid, 3 Unknown, 0 Unchecked, 19.1s Time] [2022-07-14 00:46:07,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3366 states. [2022-07-14 00:46:07,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3366 to 2449. [2022-07-14 00:46:07,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2449 states, 1716 states have (on average 1.3572261072261071) internal successors, (2329), 1777 states have internal predecessors, (2329), 604 states have call successors, (604), 130 states have call predecessors, (604), 128 states have return successors, (592), 583 states have call predecessors, (592), 592 states have call successors, (592) [2022-07-14 00:46:07,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2449 states to 2449 states and 3525 transitions. [2022-07-14 00:46:07,971 INFO L78 Accepts]: Start accepts. Automaton has 2449 states and 3525 transitions. Word has length 171 [2022-07-14 00:46:07,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:46:07,972 INFO L495 AbstractCegarLoop]: Abstraction has 2449 states and 3525 transitions. [2022-07-14 00:46:07,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-14 00:46:07,973 INFO L276 IsEmpty]: Start isEmpty. Operand 2449 states and 3525 transitions. [2022-07-14 00:46:07,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-07-14 00:46:07,975 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:46:07,975 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:46:07,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-14 00:46:07,976 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:46:07,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:46:07,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1094010015, now seen corresponding path program 1 times [2022-07-14 00:46:07,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:46:07,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706948940] [2022-07-14 00:46:07,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:46:07,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:46:08,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:08,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:46:08,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:08,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:46:08,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:08,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:46:08,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:08,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 00:46:08,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:08,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:46:08,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:08,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:46:08,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:08,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 00:46:08,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:08,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:46:08,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:08,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:46:08,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:08,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:46:08,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:08,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:46:08,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:08,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:46:08,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:08,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 00:46:08,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:08,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:46:08,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:08,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:46:08,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:08,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-14 00:46:08,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:08,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:46:08,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:08,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:46:08,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:08,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-14 00:46:08,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:08,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:46:08,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:08,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-14 00:46:08,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:08,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:46:08,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:08,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-14 00:46:08,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:08,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:46:08,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:08,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-14 00:46:08,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:08,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:46:08,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:08,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-14 00:46:08,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:08,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:46:08,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:08,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-07-14 00:46:08,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:08,485 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2022-07-14 00:46:08,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:46:08,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706948940] [2022-07-14 00:46:08,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706948940] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:46:08,486 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:46:08,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 00:46:08,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229465498] [2022-07-14 00:46:08,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:46:08,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 00:46:08,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:46:08,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 00:46:08,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-07-14 00:46:08,488 INFO L87 Difference]: Start difference. First operand 2449 states and 3525 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-14 00:46:10,520 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:46:12,567 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:46:14,607 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:46:16,655 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:46:31,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:46:31,500 INFO L93 Difference]: Finished difference Result 9078 states and 13518 transitions. [2022-07-14 00:46:31,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-14 00:46:31,500 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 172 [2022-07-14 00:46:31,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:46:31,536 INFO L225 Difference]: With dead ends: 9078 [2022-07-14 00:46:31,537 INFO L226 Difference]: Without dead ends: 6659 [2022-07-14 00:46:31,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-07-14 00:46:31,549 INFO L413 NwaCegarLoop]: 2035 mSDtfsCounter, 4298 mSDsluCounter, 4495 mSDsCounter, 0 mSdLazyCounter, 4528 mSolverCounterSat, 2210 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4578 SdHoareTripleChecker+Valid, 6530 SdHoareTripleChecker+Invalid, 6742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2210 IncrementalHoareTripleChecker+Valid, 4528 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.5s IncrementalHoareTripleChecker+Time [2022-07-14 00:46:31,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4578 Valid, 6530 Invalid, 6742 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2210 Valid, 4528 Invalid, 4 Unknown, 0 Unchecked, 22.5s Time] [2022-07-14 00:46:31,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6659 states. [2022-07-14 00:46:31,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6659 to 4828. [2022-07-14 00:46:31,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4828 states, 3395 states have (on average 1.3593519882179677) internal successors, (4615), 3508 states have internal predecessors, (4615), 1180 states have call successors, (1180), 256 states have call predecessors, (1180), 252 states have return successors, (1162), 1147 states have call predecessors, (1162), 1162 states have call successors, (1162) [2022-07-14 00:46:31,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4828 states to 4828 states and 6957 transitions. [2022-07-14 00:46:31,756 INFO L78 Accepts]: Start accepts. Automaton has 4828 states and 6957 transitions. Word has length 172 [2022-07-14 00:46:31,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:46:31,756 INFO L495 AbstractCegarLoop]: Abstraction has 4828 states and 6957 transitions. [2022-07-14 00:46:31,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-14 00:46:31,757 INFO L276 IsEmpty]: Start isEmpty. Operand 4828 states and 6957 transitions. [2022-07-14 00:46:31,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-07-14 00:46:31,758 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:46:31,759 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:46:31,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-14 00:46:31,759 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:46:31,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:46:31,760 INFO L85 PathProgramCache]: Analyzing trace with hash 141871931, now seen corresponding path program 1 times [2022-07-14 00:46:31,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:46:31,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401685756] [2022-07-14 00:46:31,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:46:31,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:46:31,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:32,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:46:32,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:32,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:46:32,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:32,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:46:32,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:32,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 00:46:32,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:32,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:46:32,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:32,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:46:32,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:32,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 00:46:32,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:32,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:46:32,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:32,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:46:32,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:32,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:46:32,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:32,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:46:32,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:32,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:46:32,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:32,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 00:46:32,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:32,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:46:32,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:32,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:46:32,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:32,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-14 00:46:32,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:32,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:46:32,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:32,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:46:32,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:32,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-14 00:46:32,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:32,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:46:32,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:32,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-14 00:46:32,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:32,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:46:32,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:32,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-14 00:46:32,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:32,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:46:32,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:32,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-14 00:46:32,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:32,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:46:32,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:32,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-14 00:46:32,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:32,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:46:32,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:32,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-14 00:46:32,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:32,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-07-14 00:46:32,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:32,185 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2022-07-14 00:46:32,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:46:32,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401685756] [2022-07-14 00:46:32,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401685756] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:46:32,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:46:32,186 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 00:46:32,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670668765] [2022-07-14 00:46:32,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:46:32,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 00:46:32,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:46:32,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 00:46:32,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-14 00:46:32,188 INFO L87 Difference]: Start difference. First operand 4828 states and 6957 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-14 00:46:34,218 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:46:36,231 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:46:38,287 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:46:48,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:46:48,294 INFO L93 Difference]: Finished difference Result 16147 states and 23731 transitions. [2022-07-14 00:46:48,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 00:46:48,294 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 174 [2022-07-14 00:46:48,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:46:48,362 INFO L225 Difference]: With dead ends: 16147 [2022-07-14 00:46:48,363 INFO L226 Difference]: Without dead ends: 11349 [2022-07-14 00:46:48,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-14 00:46:48,390 INFO L413 NwaCegarLoop]: 2016 mSDtfsCounter, 3218 mSDsluCounter, 3767 mSDsCounter, 0 mSdLazyCounter, 3106 mSolverCounterSat, 1874 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3462 SdHoareTripleChecker+Valid, 5783 SdHoareTripleChecker+Invalid, 4983 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1874 IncrementalHoareTripleChecker+Valid, 3106 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.5s IncrementalHoareTripleChecker+Time [2022-07-14 00:46:48,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3462 Valid, 5783 Invalid, 4983 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1874 Valid, 3106 Invalid, 3 Unknown, 0 Unchecked, 15.5s Time] [2022-07-14 00:46:48,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11349 states. [2022-07-14 00:46:48,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11349 to 9362. [2022-07-14 00:46:48,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9362 states, 6586 states have (on average 1.3618281202550866) internal successors, (8969), 6794 states have internal predecessors, (8969), 2280 states have call successors, (2280), 500 states have call predecessors, (2280), 495 states have return successors, (2262), 2235 states have call predecessors, (2262), 2262 states have call successors, (2262) [2022-07-14 00:46:48,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9362 states to 9362 states and 13511 transitions. [2022-07-14 00:46:48,857 INFO L78 Accepts]: Start accepts. Automaton has 9362 states and 13511 transitions. Word has length 174 [2022-07-14 00:46:48,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:46:48,857 INFO L495 AbstractCegarLoop]: Abstraction has 9362 states and 13511 transitions. [2022-07-14 00:46:48,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-14 00:46:48,858 INFO L276 IsEmpty]: Start isEmpty. Operand 9362 states and 13511 transitions. [2022-07-14 00:46:48,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-07-14 00:46:48,861 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:46:48,861 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:46:48,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-14 00:46:48,861 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:46:48,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:46:48,862 INFO L85 PathProgramCache]: Analyzing trace with hash 796064323, now seen corresponding path program 1 times [2022-07-14 00:46:48,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:46:48,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920685761] [2022-07-14 00:46:48,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:46:48,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:46:48,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:49,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:46:49,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:49,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:46:49,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:49,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:46:49,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:49,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 00:46:49,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:49,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:46:49,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:49,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:46:49,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:49,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 00:46:49,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:49,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:46:49,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:49,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:46:49,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:49,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:46:49,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:49,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:46:49,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:49,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:46:49,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:49,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 00:46:49,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:49,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:46:49,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:49,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:46:49,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:49,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-14 00:46:49,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:49,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:46:49,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:49,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:46:49,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:49,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-14 00:46:49,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:49,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:46:49,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:49,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-14 00:46:49,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:49,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:46:49,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:49,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-14 00:46:49,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:49,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:46:49,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:49,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-14 00:46:49,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:49,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:46:49,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:49,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-14 00:46:49,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:49,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:46:49,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:49,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-07-14 00:46:49,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:49,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-14 00:46:49,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:49,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:46:49,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:46:49,345 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2022-07-14 00:46:49,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:46:49,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920685761] [2022-07-14 00:46:49,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920685761] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:46:49,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:46:49,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 00:46:49,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626825556] [2022-07-14 00:46:49,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:46:49,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 00:46:49,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:46:49,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 00:46:49,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-07-14 00:46:49,349 INFO L87 Difference]: Start difference. First operand 9362 states and 13511 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-14 00:46:51,381 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:46:53,487 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:46:55,545 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:47:06,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:47:06,680 INFO L93 Difference]: Finished difference Result 35292 states and 52644 transitions. [2022-07-14 00:47:06,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-14 00:47:06,681 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 190 [2022-07-14 00:47:06,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:47:06,835 INFO L225 Difference]: With dead ends: 35292 [2022-07-14 00:47:06,835 INFO L226 Difference]: Without dead ends: 25957 [2022-07-14 00:47:06,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-07-14 00:47:06,887 INFO L413 NwaCegarLoop]: 1909 mSDtfsCounter, 5138 mSDsluCounter, 3401 mSDsCounter, 0 mSdLazyCounter, 3469 mSolverCounterSat, 3132 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5423 SdHoareTripleChecker+Valid, 5310 SdHoareTripleChecker+Invalid, 6604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3132 IncrementalHoareTripleChecker+Valid, 3469 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.5s IncrementalHoareTripleChecker+Time [2022-07-14 00:47:06,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5423 Valid, 5310 Invalid, 6604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3132 Valid, 3469 Invalid, 3 Unknown, 0 Unchecked, 16.5s Time] [2022-07-14 00:47:06,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25957 states. [2022-07-14 00:47:07,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25957 to 18633. [2022-07-14 00:47:07,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18633 states, 13125 states have (on average 1.3625142857142858) internal successors, (17883), 13529 states have internal predecessors, (17883), 4524 states have call successors, (4524), 991 states have call predecessors, (4524), 983 states have return successors, (4504), 4448 states have call predecessors, (4504), 4504 states have call successors, (4504) [2022-07-14 00:47:07,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18633 states to 18633 states and 26911 transitions. [2022-07-14 00:47:07,897 INFO L78 Accepts]: Start accepts. Automaton has 18633 states and 26911 transitions. Word has length 190 [2022-07-14 00:47:07,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:47:07,898 INFO L495 AbstractCegarLoop]: Abstraction has 18633 states and 26911 transitions. [2022-07-14 00:47:07,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-14 00:47:07,899 INFO L276 IsEmpty]: Start isEmpty. Operand 18633 states and 26911 transitions. [2022-07-14 00:47:07,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-07-14 00:47:07,903 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:47:07,903 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:47:07,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-14 00:47:07,904 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:47:07,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:47:07,904 INFO L85 PathProgramCache]: Analyzing trace with hash 1526130958, now seen corresponding path program 1 times [2022-07-14 00:47:07,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:47:07,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349229627] [2022-07-14 00:47:07,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:47:07,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:47:08,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:08,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:47:08,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:08,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:47:08,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:08,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:47:08,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:08,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 00:47:08,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:08,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:47:08,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:08,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:47:08,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:08,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 00:47:08,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:08,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:47:08,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:08,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:47:08,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:08,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:47:08,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:08,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:47:08,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:08,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:47:08,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:08,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 00:47:08,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:08,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:47:08,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:08,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:47:08,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:08,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-14 00:47:08,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:08,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:47:08,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:08,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:47:08,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:08,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-14 00:47:08,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:08,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:47:08,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:08,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-14 00:47:08,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:08,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:47:08,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:08,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-14 00:47:08,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:08,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:47:08,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:08,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-14 00:47:08,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:08,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:47:08,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:08,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-14 00:47:08,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:08,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:47:08,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:08,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-07-14 00:47:08,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:08,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-14 00:47:08,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:08,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:47:08,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:08,668 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2022-07-14 00:47:08,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:47:08,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349229627] [2022-07-14 00:47:08,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349229627] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 00:47:08,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1153431319] [2022-07-14 00:47:08,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:47:08,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:47:08,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:47:08,672 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) [2022-07-14 00:47:08,700 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-14 00:47:13,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:13,216 INFO L263 TraceCheckSpWp]: Trace formula consists of 2876 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-14 00:47:13,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:47:13,445 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2022-07-14 00:47:13,445 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:47:13,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1153431319] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:47:13,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 00:47:13,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 12 [2022-07-14 00:47:13,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732966311] [2022-07-14 00:47:13,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:47:13,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 00:47:13,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:47:13,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 00:47:13,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-07-14 00:47:13,447 INFO L87 Difference]: Start difference. First operand 18633 states and 26911 transitions. Second operand has 6 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-14 00:47:14,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:47:14,278 INFO L93 Difference]: Finished difference Result 37301 states and 53871 transitions. [2022-07-14 00:47:14,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 00:47:14,279 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 192 [2022-07-14 00:47:14,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:47:14,380 INFO L225 Difference]: With dead ends: 37301 [2022-07-14 00:47:14,380 INFO L226 Difference]: Without dead ends: 18681 [2022-07-14 00:47:14,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 246 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-07-14 00:47:14,460 INFO L413 NwaCegarLoop]: 1800 mSDtfsCounter, 6 mSDsluCounter, 7180 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 8980 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 00:47:14,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 8980 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 00:47:14,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18681 states. [2022-07-14 00:47:15,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18681 to 18636. [2022-07-14 00:47:15,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18636 states, 13127 states have (on average 1.3625352327264417) internal successors, (17886), 13532 states have internal predecessors, (17886), 4524 states have call successors, (4524), 991 states have call predecessors, (4524), 984 states have return successors, (4505), 4448 states have call predecessors, (4505), 4504 states have call successors, (4505) [2022-07-14 00:47:15,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18636 states to 18636 states and 26915 transitions. [2022-07-14 00:47:15,330 INFO L78 Accepts]: Start accepts. Automaton has 18636 states and 26915 transitions. Word has length 192 [2022-07-14 00:47:15,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:47:15,331 INFO L495 AbstractCegarLoop]: Abstraction has 18636 states and 26915 transitions. [2022-07-14 00:47:15,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-14 00:47:15,331 INFO L276 IsEmpty]: Start isEmpty. Operand 18636 states and 26915 transitions. [2022-07-14 00:47:15,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-07-14 00:47:15,334 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:47:15,335 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:47:15,396 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-14 00:47:15,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-07-14 00:47:15,556 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:47:15,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:47:15,556 INFO L85 PathProgramCache]: Analyzing trace with hash -1880909778, now seen corresponding path program 1 times [2022-07-14 00:47:15,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:47:15,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950619342] [2022-07-14 00:47:15,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:47:15,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:47:15,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:15,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:47:15,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:15,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:47:15,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:15,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:47:15,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:15,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 00:47:15,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:15,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:47:15,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:15,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:47:15,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:15,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 00:47:15,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:15,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:47:15,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:15,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:47:15,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:15,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:47:15,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:15,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:47:15,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:15,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:47:15,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:15,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 00:47:15,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:15,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:47:16,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:16,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:47:16,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:16,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-14 00:47:16,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:16,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:47:16,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:16,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:47:16,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:16,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-14 00:47:16,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:16,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:47:16,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:16,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-14 00:47:16,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:16,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:47:16,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:16,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-14 00:47:16,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:16,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:47:16,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:16,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-14 00:47:16,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:16,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:47:16,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:16,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-14 00:47:16,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:16,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:47:16,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:16,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-07-14 00:47:16,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:16,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-14 00:47:16,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:16,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:47:16,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:16,453 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2022-07-14 00:47:16,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:47:16,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950619342] [2022-07-14 00:47:16,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950619342] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 00:47:16,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1524696051] [2022-07-14 00:47:16,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:47:16,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:47:16,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:47:16,456 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) [2022-07-14 00:47:16,457 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-14 00:47:19,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:19,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 2951 conjuncts, 16 conjunts are in the unsatisfiable core [2022-07-14 00:47:19,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:47:19,970 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 48 proven. 1 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2022-07-14 00:47:19,970 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 00:47:20,848 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2022-07-14 00:47:20,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1524696051] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 00:47:20,849 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 00:47:20,849 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 7] total 17 [2022-07-14 00:47:20,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682491899] [2022-07-14 00:47:20,849 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 00:47:20,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-07-14 00:47:20,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:47:20,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-07-14 00:47:20,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2022-07-14 00:47:20,852 INFO L87 Difference]: Start difference. First operand 18636 states and 26915 transitions. Second operand has 17 states, 15 states have (on average 6.6) internal successors, (99), 13 states have internal predecessors, (99), 4 states have call successors, (43), 6 states have call predecessors, (43), 6 states have return successors, (29), 4 states have call predecessors, (29), 4 states have call successors, (29) [2022-07-14 00:47:22,883 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:47:24,900 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:47:26,992 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:47:43,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:47:43,941 INFO L93 Difference]: Finished difference Result 44589 states and 66337 transitions. [2022-07-14 00:47:43,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-14 00:47:43,942 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 6.6) internal successors, (99), 13 states have internal predecessors, (99), 4 states have call successors, (43), 6 states have call predecessors, (43), 6 states have return successors, (29), 4 states have call predecessors, (29), 4 states have call successors, (29) Word has length 197 [2022-07-14 00:47:43,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:47:44,100 INFO L225 Difference]: With dead ends: 44589 [2022-07-14 00:47:44,101 INFO L226 Difference]: Without dead ends: 25934 [2022-07-14 00:47:44,152 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 471 GetRequests, 443 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=135, Invalid=621, Unknown=0, NotChecked=0, Total=756 [2022-07-14 00:47:44,153 INFO L413 NwaCegarLoop]: 1676 mSDtfsCounter, 1653 mSDsluCounter, 8155 mSDsCounter, 0 mSdLazyCounter, 5948 mSolverCounterSat, 1398 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1732 SdHoareTripleChecker+Valid, 9831 SdHoareTripleChecker+Invalid, 7349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1398 IncrementalHoareTripleChecker+Valid, 5948 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.7s IncrementalHoareTripleChecker+Time [2022-07-14 00:47:44,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1732 Valid, 9831 Invalid, 7349 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1398 Valid, 5948 Invalid, 3 Unknown, 0 Unchecked, 21.7s Time] [2022-07-14 00:47:44,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25934 states. [2022-07-14 00:47:44,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25934 to 18672. [2022-07-14 00:47:44,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18672 states, 13161 states have (on average 1.3627383937390776) internal successors, (17935), 13566 states have internal predecessors, (17935), 4525 states have call successors, (4525), 992 states have call predecessors, (4525), 985 states have return successors, (4506), 4449 states have call predecessors, (4506), 4505 states have call successors, (4506) [2022-07-14 00:47:45,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18672 states to 18672 states and 26966 transitions. [2022-07-14 00:47:45,071 INFO L78 Accepts]: Start accepts. Automaton has 18672 states and 26966 transitions. Word has length 197 [2022-07-14 00:47:45,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:47:45,072 INFO L495 AbstractCegarLoop]: Abstraction has 18672 states and 26966 transitions. [2022-07-14 00:47:45,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 6.6) internal successors, (99), 13 states have internal predecessors, (99), 4 states have call successors, (43), 6 states have call predecessors, (43), 6 states have return successors, (29), 4 states have call predecessors, (29), 4 states have call successors, (29) [2022-07-14 00:47:45,072 INFO L276 IsEmpty]: Start isEmpty. Operand 18672 states and 26966 transitions. [2022-07-14 00:47:45,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-07-14 00:47:45,075 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:47:45,076 INFO L195 NwaCegarLoop]: trace histogram [10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:47:45,142 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-14 00:47:45,291 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,SelfDestructingSolverStorable6 [2022-07-14 00:47:45,291 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:47:45,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:47:45,292 INFO L85 PathProgramCache]: Analyzing trace with hash 731484686, now seen corresponding path program 2 times [2022-07-14 00:47:45,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:47:45,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823260194] [2022-07-14 00:47:45,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:47:45,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:47:45,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:45,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:47:45,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:45,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:47:45,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:45,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:47:45,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:45,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 00:47:45,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:45,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:47:45,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:45,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:47:45,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:45,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 00:47:45,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:45,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:47:45,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:45,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:47:45,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:45,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:47:45,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:45,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:47:45,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:45,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:47:45,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:45,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 00:47:45,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:45,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:47:45,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:45,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:47:45,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:45,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-14 00:47:45,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:45,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:47:45,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:45,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:47:45,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:45,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-14 00:47:45,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:45,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:47:45,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:46,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-14 00:47:46,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:46,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:47:46,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:46,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-14 00:47:46,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:46,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:47:46,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:46,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-14 00:47:46,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:46,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:47:46,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:46,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-14 00:47:46,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:46,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:47:46,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:46,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-07-14 00:47:46,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:46,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-14 00:47:46,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:46,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:47:46,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:47:46,134 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 332 trivial. 0 not checked. [2022-07-14 00:47:46,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:47:46,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823260194] [2022-07-14 00:47:46,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823260194] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 00:47:46,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1877751107] [2022-07-14 00:47:46,135 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 00:47:46,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:47:46,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:47:46,140 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) [2022-07-14 00:47:46,141 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-14 00:47:49,679 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-14 00:47:49,680 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 00:47:49,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 2272 conjuncts, 53 conjunts are in the unsatisfiable core [2022-07-14 00:47:49,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:47:51,024 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 395 trivial. 0 not checked. [2022-07-14 00:47:51,024 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:47:51,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1877751107] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:47:51,025 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 00:47:51,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [12] total 23 [2022-07-14 00:47:51,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479540869] [2022-07-14 00:47:51,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:47:51,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-14 00:47:51,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:47:51,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-14 00:47:51,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=454, Unknown=0, NotChecked=0, Total=506 [2022-07-14 00:47:51,028 INFO L87 Difference]: Start difference. First operand 18672 states and 26966 transitions. Second operand has 13 states, 12 states have (on average 5.083333333333333) internal successors, (61), 10 states have internal predecessors, (61), 4 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2022-07-14 00:47:53,061 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 [] [2022-07-14 00:47:55,136 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:47:57,256 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:47:59,276 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:48:08,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:48:08,582 INFO L93 Difference]: Finished difference Result 54288 states and 79018 transitions. [2022-07-14 00:48:08,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-14 00:48:08,583 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.083333333333333) internal successors, (61), 10 states have internal predecessors, (61), 4 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) Word has length 202 [2022-07-14 00:48:08,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:48:08,748 INFO L225 Difference]: With dead ends: 54288 [2022-07-14 00:48:08,748 INFO L226 Difference]: Without dead ends: 35651 [2022-07-14 00:48:08,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=103, Invalid=889, Unknown=0, NotChecked=0, Total=992 [2022-07-14 00:48:08,816 INFO L413 NwaCegarLoop]: 2312 mSDtfsCounter, 2761 mSDsluCounter, 20931 mSDsCounter, 0 mSdLazyCounter, 3284 mSolverCounterSat, 249 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2834 SdHoareTripleChecker+Valid, 23243 SdHoareTripleChecker+Invalid, 3537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 249 IncrementalHoareTripleChecker+Valid, 3284 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time [2022-07-14 00:48:08,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2834 Valid, 23243 Invalid, 3537 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [249 Valid, 3284 Invalid, 4 Unknown, 0 Unchecked, 15.7s Time] [2022-07-14 00:48:08,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35651 states. [2022-07-14 00:48:10,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35651 to 32460. [2022-07-14 00:48:10,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32460 states, 22875 states have (on average 1.3635846994535519) internal successors, (31192), 23587 states have internal predecessors, (31192), 7865 states have call successors, (7865), 1714 states have call predecessors, (7865), 1719 states have return successors, (7888), 7746 states have call predecessors, (7888), 7845 states have call successors, (7888) [2022-07-14 00:48:10,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32460 states to 32460 states and 46945 transitions. [2022-07-14 00:48:10,285 INFO L78 Accepts]: Start accepts. Automaton has 32460 states and 46945 transitions. Word has length 202 [2022-07-14 00:48:10,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:48:10,286 INFO L495 AbstractCegarLoop]: Abstraction has 32460 states and 46945 transitions. [2022-07-14 00:48:10,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.083333333333333) internal successors, (61), 10 states have internal predecessors, (61), 4 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2022-07-14 00:48:10,286 INFO L276 IsEmpty]: Start isEmpty. Operand 32460 states and 46945 transitions. [2022-07-14 00:48:10,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-07-14 00:48:10,291 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:48:10,291 INFO L195 NwaCegarLoop]: trace histogram [10, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-07-14 00:48:10,349 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-14 00:48:10,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:48:10,507 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:48:10,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:48:10,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1484698119, now seen corresponding path program 1 times [2022-07-14 00:48:10,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:48:10,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546270597] [2022-07-14 00:48:10,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:48:10,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:48:10,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:10,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:48:10,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:11,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:48:11,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:11,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:48:11,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:11,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 00:48:11,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:11,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:48:11,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:11,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:48:11,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:11,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 00:48:11,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:11,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:48:11,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:11,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:48:11,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:11,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:48:11,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:11,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:48:11,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:11,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:48:11,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:11,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 00:48:11,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:11,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:48:11,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:11,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:48:11,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:11,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-14 00:48:11,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:11,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:48:11,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:11,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:48:11,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:11,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-14 00:48:11,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:11,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:48:11,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:11,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-14 00:48:11,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:11,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:48:11,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:11,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-14 00:48:11,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:11,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:48:11,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:11,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-14 00:48:11,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:11,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:48:11,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:11,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-14 00:48:11,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:11,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:48:11,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:11,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-07-14 00:48:11,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:11,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:48:11,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:11,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-14 00:48:11,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:11,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:48:11,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:11,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-14 00:48:11,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:11,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-07-14 00:48:11,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:11,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:48:11,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:11,671 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2022-07-14 00:48:11,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:48:11,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546270597] [2022-07-14 00:48:11,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546270597] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 00:48:11,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [991688879] [2022-07-14 00:48:11,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:48:11,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:48:11,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:48:11,680 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) [2022-07-14 00:48:11,684 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-14 00:48:14,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:14,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 3095 conjuncts, 14 conjunts are in the unsatisfiable core [2022-07-14 00:48:14,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:48:15,404 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 116 proven. 3 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2022-07-14 00:48:15,405 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 00:48:16,416 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2022-07-14 00:48:16,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [991688879] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 00:48:16,417 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 00:48:16,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 8] total 20 [2022-07-14 00:48:16,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011938008] [2022-07-14 00:48:16,417 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 00:48:16,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-07-14 00:48:16,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:48:16,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-07-14 00:48:16,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=324, Unknown=0, NotChecked=0, Total=380 [2022-07-14 00:48:16,419 INFO L87 Difference]: Start difference. First operand 32460 states and 46945 transitions. Second operand has 20 states, 18 states have (on average 6.055555555555555) internal successors, (109), 16 states have internal predecessors, (109), 4 states have call successors, (49), 6 states have call predecessors, (49), 6 states have return successors, (35), 4 states have call predecessors, (35), 4 states have call successors, (35) [2022-07-14 00:48:18,444 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:48:20,460 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:48:22,527 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:48:48,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:48:48,294 INFO L93 Difference]: Finished difference Result 77676 states and 115254 transitions. [2022-07-14 00:48:48,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-14 00:48:48,295 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 6.055555555555555) internal successors, (109), 16 states have internal predecessors, (109), 4 states have call successors, (49), 6 states have call predecessors, (49), 6 states have return successors, (35), 4 states have call predecessors, (35), 4 states have call successors, (35) Word has length 223 [2022-07-14 00:48:48,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:48:48,559 INFO L225 Difference]: With dead ends: 77676 [2022-07-14 00:48:48,560 INFO L226 Difference]: Without dead ends: 45226 [2022-07-14 00:48:48,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 534 GetRequests, 501 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=170, Invalid=886, Unknown=0, NotChecked=0, Total=1056 [2022-07-14 00:48:48,630 INFO L413 NwaCegarLoop]: 1675 mSDtfsCounter, 1356 mSDsluCounter, 13668 mSDsCounter, 0 mSdLazyCounter, 9644 mSolverCounterSat, 1027 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1436 SdHoareTripleChecker+Valid, 15343 SdHoareTripleChecker+Invalid, 10674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1027 IncrementalHoareTripleChecker+Valid, 9644 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.6s IncrementalHoareTripleChecker+Time [2022-07-14 00:48:48,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1436 Valid, 15343 Invalid, 10674 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1027 Valid, 9644 Invalid, 3 Unknown, 0 Unchecked, 29.6s Time] [2022-07-14 00:48:48,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45226 states. [2022-07-14 00:48:49,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45226 to 32461. [2022-07-14 00:48:49,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32461 states, 22876 states have (on average 1.3636125196712712) internal successors, (31194), 23588 states have internal predecessors, (31194), 7865 states have call successors, (7865), 1714 states have call predecessors, (7865), 1719 states have return successors, (7888), 7746 states have call predecessors, (7888), 7845 states have call successors, (7888) [2022-07-14 00:48:50,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32461 states to 32461 states and 46947 transitions. [2022-07-14 00:48:50,093 INFO L78 Accepts]: Start accepts. Automaton has 32461 states and 46947 transitions. Word has length 223 [2022-07-14 00:48:50,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:48:50,094 INFO L495 AbstractCegarLoop]: Abstraction has 32461 states and 46947 transitions. [2022-07-14 00:48:50,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 6.055555555555555) internal successors, (109), 16 states have internal predecessors, (109), 4 states have call successors, (49), 6 states have call predecessors, (49), 6 states have return successors, (35), 4 states have call predecessors, (35), 4 states have call successors, (35) [2022-07-14 00:48:50,094 INFO L276 IsEmpty]: Start isEmpty. Operand 32461 states and 46947 transitions. [2022-07-14 00:48:50,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2022-07-14 00:48:50,100 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:48:50,100 INFO L195 NwaCegarLoop]: trace histogram [15, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-07-14 00:48:50,156 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-14 00:48:50,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:48:50,327 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:48:50,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:48:50,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1163860199, now seen corresponding path program 2 times [2022-07-14 00:48:50,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:48:50,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129381640] [2022-07-14 00:48:50,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:48:50,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:48:50,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:50,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:48:50,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:50,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:48:50,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:50,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:48:50,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:50,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 00:48:50,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:50,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:48:50,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:50,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:48:50,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:50,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 00:48:50,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:50,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:48:50,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:50,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:48:50,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:50,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:48:50,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:50,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:48:50,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:50,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:48:50,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:50,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 00:48:50,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:50,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:48:50,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:50,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:48:50,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:50,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-14 00:48:50,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:50,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:48:50,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:50,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:48:50,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:50,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-14 00:48:50,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:50,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:48:50,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:51,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-14 00:48:51,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:51,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:48:51,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:51,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-14 00:48:51,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:51,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:48:51,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:51,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-14 00:48:51,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:51,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:48:51,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:51,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-14 00:48:51,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:51,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:48:51,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:51,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-14 00:48:51,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:51,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:48:51,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:51,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-14 00:48:51,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:51,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:48:51,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:51,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-14 00:48:51,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:51,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2022-07-14 00:48:51,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:51,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:48:51,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:48:51,294 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 446 trivial. 0 not checked. [2022-07-14 00:48:51,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:48:51,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129381640] [2022-07-14 00:48:51,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129381640] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 00:48:51,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1676604763] [2022-07-14 00:48:51,295 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 00:48:51,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:48:51,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:48:51,297 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) [2022-07-14 00:48:51,298 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process