./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-entry_point.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-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1848e360a16ec6531e7d7aea690ab68ac7295c6b0bdec191a41fa9ee0518b66d --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 00:03:24,443 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 00:03:24,445 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 00:03:24,477 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 00:03:24,477 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 00:03:24,479 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 00:03:24,480 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 00:03:24,482 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 00:03:24,483 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 00:03:24,487 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 00:03:24,488 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 00:03:24,489 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 00:03:24,489 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 00:03:24,491 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 00:03:24,491 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 00:03:24,494 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 00:03:24,494 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 00:03:24,495 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 00:03:24,496 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 00:03:24,500 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 00:03:24,502 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 00:03:24,503 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 00:03:24,504 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 00:03:24,504 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 00:03:24,505 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 00:03:24,511 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 00:03:24,511 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 00:03:24,512 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 00:03:24,513 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 00:03:24,513 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 00:03:24,514 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 00:03:24,514 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 00:03:24,515 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 00:03:24,516 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 00:03:24,516 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 00:03:24,517 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 00:03:24,517 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 00:03:24,518 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 00:03:24,518 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 00:03:24,518 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 00:03:24,519 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 00:03:24,520 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 00:03:24,521 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-14 00:03:24,549 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 00:03:24,549 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 00:03:24,550 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 00:03:24,550 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 00:03:24,551 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 00:03:24,551 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 00:03:24,551 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 00:03:24,551 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 00:03:24,552 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 00:03:24,552 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 00:03:24,553 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 00:03:24,553 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 00:03:24,553 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 00:03:24,553 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 00:03:24,553 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 00:03:24,553 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 00:03:24,554 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 00:03:24,554 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 00:03:24,554 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 00:03:24,554 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 00:03:24,554 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 00:03:24,554 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 00:03:24,555 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 00:03:24,555 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 00:03:24,555 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 00:03:24,555 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 00:03:24,555 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 00:03:24,556 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 00:03:24,556 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 00:03:24,556 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 00:03:24,556 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1848e360a16ec6531e7d7aea690ab68ac7295c6b0bdec191a41fa9ee0518b66d [2022-07-14 00:03:24,738 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 00:03:24,757 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 00:03:24,759 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 00:03:24,760 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 00:03:24,760 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 00:03:24,761 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-entry_point.cil.out.i [2022-07-14 00:03:24,801 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd38ee3f4/0ef73510bed14c6ea9ac0121ee0294a7/FLAGe5f30ec60 [2022-07-14 00:03:25,452 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 00:03:25,453 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-entry_point.cil.out.i [2022-07-14 00:03:25,492 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd38ee3f4/0ef73510bed14c6ea9ac0121ee0294a7/FLAGe5f30ec60 [2022-07-14 00:03:25,836 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd38ee3f4/0ef73510bed14c6ea9ac0121ee0294a7 [2022-07-14 00:03:25,838 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 00:03:25,839 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 00:03:25,841 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 00:03:25,841 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 00:03:25,843 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 00:03:25,844 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:03:25" (1/1) ... [2022-07-14 00:03:25,845 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b3e8936 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:03:25, skipping insertion in model container [2022-07-14 00:03:25,845 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:03:25" (1/1) ... [2022-07-14 00:03:25,851 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 00:03:25,952 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 00:03:26,603 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-entry_point.cil.out.i[196736,196749] [2022-07-14 00:03:26,991 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 00:03:27,013 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 00:03:27,131 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-entry_point.cil.out.i[196736,196749] [2022-07-14 00:03:27,285 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 00:03:27,321 INFO L208 MainTranslator]: Completed translation [2022-07-14 00:03:27,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:03:27 WrapperNode [2022-07-14 00:03:27,322 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 00:03:27,323 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 00:03:27,323 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 00:03:27,324 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 00:03:27,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:03:27" (1/1) ... [2022-07-14 00:03:27,382 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:03:27" (1/1) ... [2022-07-14 00:03:27,461 INFO L137 Inliner]: procedures = 201, calls = 1494, calls flagged for inlining = 91, calls inlined = 86, statements flattened = 2632 [2022-07-14 00:03:27,462 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 00:03:27,462 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 00:03:27,462 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 00:03:27,463 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 00:03:27,468 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:03:27" (1/1) ... [2022-07-14 00:03:27,469 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:03:27" (1/1) ... [2022-07-14 00:03:27,496 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:03:27" (1/1) ... [2022-07-14 00:03:27,497 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:03:27" (1/1) ... [2022-07-14 00:03:27,574 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:03:27" (1/1) ... [2022-07-14 00:03:27,592 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:03:27" (1/1) ... [2022-07-14 00:03:27,614 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:03:27" (1/1) ... [2022-07-14 00:03:27,634 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 00:03:27,636 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 00:03:27,636 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 00:03:27,636 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 00:03:27,637 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:03:27" (1/1) ... [2022-07-14 00:03:27,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 00:03:27,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:03:27,659 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 00:03:27,666 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 00:03:27,693 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-07-14 00:03:27,693 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-07-14 00:03:27,693 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_free_iso_urbs [2022-07-14 00:03:27,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_free_iso_urbs [2022-07-14 00:03:27,693 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_12 [2022-07-14 00:03:27,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_12 [2022-07-14 00:03:27,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-14 00:03:27,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-14 00:03:27,694 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-14 00:03:27,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-14 00:03:27,694 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_init_dvb [2022-07-14 00:03:27,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_init_dvb [2022-07-14 00:03:27,694 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2022-07-14 00:03:27,694 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2022-07-14 00:03:27,694 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2022-07-14 00:03:27,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2022-07-14 00:03:27,695 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_unregister_adapter [2022-07-14 00:03:27,695 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_unregister_adapter [2022-07-14 00:03:27,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-14 00:03:27,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-14 00:03:27,695 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_start_sec_feed [2022-07-14 00:03:27,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_start_sec_feed [2022-07-14 00:03:27,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2022-07-14 00:03:27,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2022-07-14 00:03:27,696 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2022-07-14 00:03:27,696 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2022-07-14 00:03:27,696 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_start_iso_xfer [2022-07-14 00:03:27,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_start_iso_xfer [2022-07-14 00:03:27,696 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-14 00:03:27,696 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-14 00:03:27,696 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-14 00:03:27,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-14 00:03:27,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-14 00:03:27,697 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-14 00:03:27,697 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-14 00:03:27,697 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-14 00:03:27,697 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmx_release [2022-07-14 00:03:27,698 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmx_release [2022-07-14 00:03:27,698 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2022-07-14 00:03:27,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2022-07-14 00:03:27,698 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-14 00:03:27,698 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-14 00:03:27,698 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_process_urb [2022-07-14 00:03:27,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_process_urb [2022-07-14 00:03:27,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 00:03:27,699 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2022-07-14 00:03:27,699 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2022-07-14 00:03:27,699 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-14 00:03:27,699 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-14 00:03:27,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-14 00:03:27,699 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-14 00:03:27,700 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-14 00:03:27,700 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_start_feed [2022-07-14 00:03:27,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_start_feed [2022-07-14 00:03:27,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 00:03:27,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-14 00:03:27,701 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_probe [2022-07-14 00:03:27,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_probe [2022-07-14 00:03:27,701 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-07-14 00:03:27,702 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-07-14 00:03:27,702 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-07-14 00:03:27,702 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-07-14 00:03:27,702 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_start_ts_feed [2022-07-14 00:03:27,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_start_ts_feed [2022-07-14 00:03:27,703 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-14 00:03:27,703 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-14 00:03:27,703 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-14 00:03:27,703 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-14 00:03:27,703 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-07-14 00:03:27,703 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-07-14 00:03:27,703 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_exit_dvb [2022-07-14 00:03:27,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_exit_dvb [2022-07-14 00:03:27,704 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-14 00:03:27,704 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-14 00:03:27,704 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_set_model [2022-07-14 00:03:27,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_set_model [2022-07-14 00:03:27,704 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2022-07-14 00:03:27,705 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2022-07-14 00:03:27,705 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2022-07-14 00:03:27,705 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2022-07-14 00:03:27,705 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_stop_iso_xfer [2022-07-14 00:03:27,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_stop_iso_xfer [2022-07-14 00:03:27,705 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_filter_pes2ts_init [2022-07-14 00:03:27,705 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_filter_pes2ts_init [2022-07-14 00:03:27,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-14 00:03:27,705 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-14 00:03:27,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-14 00:03:27,706 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-14 00:03:27,706 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-14 00:03:27,706 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-14 00:03:27,706 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-14 00:03:27,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-14 00:03:27,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_3 [2022-07-14 00:03:27,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_3 [2022-07-14 00:03:27,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_4 [2022-07-14 00:03:27,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_4 [2022-07-14 00:03:27,708 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_2 [2022-07-14 00:03:27,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_2 [2022-07-14 00:03:27,708 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_7 [2022-07-14 00:03:27,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_7 [2022-07-14 00:03:27,708 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~$Pointer$~X~int~TO~int [2022-07-14 00:03:27,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~$Pointer$~X~int~TO~int [2022-07-14 00:03:27,709 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2022-07-14 00:03:27,709 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2022-07-14 00:03:27,709 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-14 00:03:27,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-14 00:03:27,709 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-14 00:03:27,709 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-07-14 00:03:27,709 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-07-14 00:03:27,709 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-07-14 00:03:27,710 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-07-14 00:03:27,710 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-14 00:03:27,710 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-14 00:03:27,710 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-07-14 00:03:27,710 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-07-14 00:03:27,710 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_send_command [2022-07-14 00:03:27,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_send_command [2022-07-14 00:03:27,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-14 00:03:27,711 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_setup_urbs [2022-07-14 00:03:27,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_setup_urbs [2022-07-14 00:03:27,713 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2022-07-14 00:03:27,713 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2022-07-14 00:03:27,713 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-14 00:03:27,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-14 00:03:27,715 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_set_pids [2022-07-14 00:03:27,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_set_pids [2022-07-14 00:03:27,715 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_exit_usb [2022-07-14 00:03:27,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_exit_usb [2022-07-14 00:03:27,718 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-14 00:03:27,718 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 00:03:27,719 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-14 00:03:27,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-14 00:03:27,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-14 00:03:27,719 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-14 00:03:27,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-14 00:03:27,719 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-07-14 00:03:27,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-07-14 00:03:27,719 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_init_rc [2022-07-14 00:03:27,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_init_rc [2022-07-14 00:03:27,720 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmxdev_release [2022-07-14 00:03:27,720 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmxdev_release [2022-07-14 00:03:27,720 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-14 00:03:27,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-14 00:03:27,720 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_disconnect [2022-07-14 00:03:27,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_disconnect [2022-07-14 00:03:27,720 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_handle_irq [2022-07-14 00:03:27,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_handle_irq [2022-07-14 00:03:27,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2022-07-14 00:03:27,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2022-07-14 00:03:27,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 00:03:27,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 00:03:27,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 00:03:28,205 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 00:03:28,207 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 00:03:28,475 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-14 00:03:32,336 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2022-07-14 00:03:32,553 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 00:03:32,570 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 00:03:32,570 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-14 00:03:32,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:03:32 BoogieIcfgContainer [2022-07-14 00:03:32,573 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 00:03:32,575 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 00:03:32,575 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 00:03:32,577 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 00:03:32,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 12:03:25" (1/3) ... [2022-07-14 00:03:32,578 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d61823d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:03:32, skipping insertion in model container [2022-07-14 00:03:32,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:03:27" (2/3) ... [2022-07-14 00:03:32,578 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d61823d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:03:32, skipping insertion in model container [2022-07-14 00:03:32,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:03:32" (3/3) ... [2022-07-14 00:03:32,579 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-entry_point.cil.out.i [2022-07-14 00:03:32,589 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 00:03:32,590 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-14 00:03:32,642 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 00:03:32,646 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@3f81c368, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3d3033b5 [2022-07-14 00:03:32,647 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-14 00:03:32,652 INFO L276 IsEmpty]: Start isEmpty. Operand has 1076 states, 777 states have (on average 1.3384813384813385) internal successors, (1040), 804 states have internal predecessors, (1040), 231 states have call successors, (231), 68 states have call predecessors, (231), 66 states have return successors, (225), 217 states have call predecessors, (225), 225 states have call successors, (225) [2022-07-14 00:03:32,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-07-14 00:03:32,659 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:03:32,659 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-14 00:03:32,659 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:03:32,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:03:32,663 INFO L85 PathProgramCache]: Analyzing trace with hash 303000669, now seen corresponding path program 1 times [2022-07-14 00:03:32,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:03:32,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704696939] [2022-07-14 00:03:32,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:03:32,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:03:32,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:03:33,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:03:33,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:03:33,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:03:33,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:03:33,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:03:33,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:03:33,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:03:33,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:03:33,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:03:33,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:03:33,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-14 00:03:33,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:03:33,172 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-07-14 00:03:33,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:03:33,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704696939] [2022-07-14 00:03:33,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704696939] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:03:33,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:03:33,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 00:03:33,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795434200] [2022-07-14 00:03:33,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:03:33,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 00:03:33,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:03:33,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 00:03:33,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 00:03:33,204 INFO L87 Difference]: Start difference. First operand has 1076 states, 777 states have (on average 1.3384813384813385) internal successors, (1040), 804 states have internal predecessors, (1040), 231 states have call successors, (231), 68 states have call predecessors, (231), 66 states have return successors, (225), 217 states have call predecessors, (225), 225 states have call successors, (225) Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-14 00:03:36,319 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 00:03:40,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:03:40,409 INFO L93 Difference]: Finished difference Result 3572 states and 5251 transitions. [2022-07-14 00:03:40,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 00:03:40,411 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 52 [2022-07-14 00:03:40,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:03:40,447 INFO L225 Difference]: With dead ends: 3572 [2022-07-14 00:03:40,448 INFO L226 Difference]: Without dead ends: 2475 [2022-07-14 00:03:40,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-14 00:03:40,462 INFO L413 NwaCegarLoop]: 1633 mSDtfsCounter, 2978 mSDsluCounter, 2364 mSDsCounter, 0 mSdLazyCounter, 1916 mSolverCounterSat, 1419 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3140 SdHoareTripleChecker+Valid, 3997 SdHoareTripleChecker+Invalid, 3336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1419 IncrementalHoareTripleChecker+Valid, 1916 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-07-14 00:03:40,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3140 Valid, 3997 Invalid, 3336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1419 Valid, 1916 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2022-07-14 00:03:40,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2475 states. [2022-07-14 00:03:40,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2475 to 2044. [2022-07-14 00:03:40,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2044 states, 1490 states have (on average 1.3187919463087248) internal successors, (1965), 1524 states have internal predecessors, (1965), 424 states have call successors, (424), 130 states have call predecessors, (424), 129 states have return successors, (419), 403 states have call predecessors, (419), 419 states have call successors, (419) [2022-07-14 00:03:40,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2044 states to 2044 states and 2808 transitions. [2022-07-14 00:03:40,631 INFO L78 Accepts]: Start accepts. Automaton has 2044 states and 2808 transitions. Word has length 52 [2022-07-14 00:03:40,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:03:40,632 INFO L495 AbstractCegarLoop]: Abstraction has 2044 states and 2808 transitions. [2022-07-14 00:03:40,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-14 00:03:40,632 INFO L276 IsEmpty]: Start isEmpty. Operand 2044 states and 2808 transitions. [2022-07-14 00:03:40,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-07-14 00:03:40,639 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:03:40,640 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:03:40,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-14 00:03:40,640 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:03:40,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:03:40,641 INFO L85 PathProgramCache]: Analyzing trace with hash 2056314414, now seen corresponding path program 1 times [2022-07-14 00:03:40,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:03:40,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675120673] [2022-07-14 00:03:40,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:03:40,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:03:40,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:03:40,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:03:40,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:03:40,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:03:40,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:03:40,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:03:40,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:03:40,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:03:40,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:03:40,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:03:40,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:03:40,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-14 00:03:40,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:03:40,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-14 00:03:40,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:03:40,926 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-07-14 00:03:40,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:03:40,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675120673] [2022-07-14 00:03:40,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675120673] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:03:40,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:03:40,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 00:03:40,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402245101] [2022-07-14 00:03:40,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:03:40,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 00:03:40,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:03:40,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 00:03:40,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 00:03:40,932 INFO L87 Difference]: Start difference. First operand 2044 states and 2808 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-07-14 00:03:43,474 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 00:03:47,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:03:47,763 INFO L93 Difference]: Finished difference Result 3656 states and 5220 transitions. [2022-07-14 00:03:47,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 00:03:47,764 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 62 [2022-07-14 00:03:47,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:03:47,782 INFO L225 Difference]: With dead ends: 3656 [2022-07-14 00:03:47,782 INFO L226 Difference]: Without dead ends: 3643 [2022-07-14 00:03:47,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-14 00:03:47,786 INFO L413 NwaCegarLoop]: 1549 mSDtfsCounter, 3005 mSDsluCounter, 2220 mSDsCounter, 0 mSdLazyCounter, 1834 mSolverCounterSat, 1405 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3172 SdHoareTripleChecker+Valid, 3769 SdHoareTripleChecker+Invalid, 3240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1405 IncrementalHoareTripleChecker+Valid, 1834 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-07-14 00:03:47,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3172 Valid, 3769 Invalid, 3240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1405 Valid, 1834 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2022-07-14 00:03:47,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3643 states. [2022-07-14 00:03:47,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3643 to 2986. [2022-07-14 00:03:47,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2986 states, 2174 states have (on average 1.3164673413063477) internal successors, (2862), 2223 states have internal predecessors, (2862), 619 states have call successors, (619), 193 states have call predecessors, (619), 192 states have return successors, (614), 590 states have call predecessors, (614), 614 states have call successors, (614) [2022-07-14 00:03:47,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2986 states to 2986 states and 4095 transitions. [2022-07-14 00:03:47,882 INFO L78 Accepts]: Start accepts. Automaton has 2986 states and 4095 transitions. Word has length 62 [2022-07-14 00:03:47,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:03:47,883 INFO L495 AbstractCegarLoop]: Abstraction has 2986 states and 4095 transitions. [2022-07-14 00:03:47,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-07-14 00:03:47,883 INFO L276 IsEmpty]: Start isEmpty. Operand 2986 states and 4095 transitions. [2022-07-14 00:03:47,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-07-14 00:03:47,885 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:03:47,886 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:03:47,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-14 00:03:47,886 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:03:47,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:03:47,887 INFO L85 PathProgramCache]: Analyzing trace with hash 2113572716, now seen corresponding path program 1 times [2022-07-14 00:03:47,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:03:47,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322594897] [2022-07-14 00:03:47,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:03:47,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:03:47,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:03:48,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:03:48,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:03:48,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:03:48,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:03:48,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:03:48,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:03:48,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:03:48,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:03:48,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:03:48,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:03:48,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-14 00:03:48,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:03:48,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-14 00:03:48,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:03:48,176 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-07-14 00:03:48,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:03:48,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322594897] [2022-07-14 00:03:48,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322594897] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:03:48,177 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:03:48,177 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 00:03:48,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534533681] [2022-07-14 00:03:48,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:03:48,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 00:03:48,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:03:48,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 00:03:48,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 00:03:48,182 INFO L87 Difference]: Start difference. First operand 2986 states and 4095 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-07-14 00:03:50,778 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 00:03:55,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:03:55,184 INFO L93 Difference]: Finished difference Result 10161 states and 14863 transitions. [2022-07-14 00:03:55,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 00:03:55,185 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 62 [2022-07-14 00:03:55,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:03:55,227 INFO L225 Difference]: With dead ends: 10161 [2022-07-14 00:03:55,228 INFO L226 Difference]: Without dead ends: 7197 [2022-07-14 00:03:55,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-14 00:03:55,245 INFO L413 NwaCegarLoop]: 1660 mSDtfsCounter, 3019 mSDsluCounter, 2463 mSDsCounter, 0 mSdLazyCounter, 1925 mSolverCounterSat, 1389 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3160 SdHoareTripleChecker+Valid, 4123 SdHoareTripleChecker+Invalid, 3315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1389 IncrementalHoareTripleChecker+Valid, 1925 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-07-14 00:03:55,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3160 Valid, 4123 Invalid, 3315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1389 Valid, 1925 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2022-07-14 00:03:55,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7197 states. [2022-07-14 00:03:55,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7197 to 6331. [2022-07-14 00:03:55,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6331 states, 4588 states have (on average 1.305797733217088) internal successors, (5991), 4709 states have internal predecessors, (5991), 1263 states have call successors, (1263), 383 states have call predecessors, (1263), 479 states have return successors, (1666), 1274 states have call predecessors, (1666), 1258 states have call successors, (1666) [2022-07-14 00:03:55,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6331 states to 6331 states and 8920 transitions. [2022-07-14 00:03:55,507 INFO L78 Accepts]: Start accepts. Automaton has 6331 states and 8920 transitions. Word has length 62 [2022-07-14 00:03:55,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:03:55,507 INFO L495 AbstractCegarLoop]: Abstraction has 6331 states and 8920 transitions. [2022-07-14 00:03:55,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-07-14 00:03:55,508 INFO L276 IsEmpty]: Start isEmpty. Operand 6331 states and 8920 transitions. [2022-07-14 00:03:55,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-07-14 00:03:55,508 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:03:55,508 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:03:55,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-14 00:03:55,509 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:03:55,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:03:55,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1095762274, now seen corresponding path program 1 times [2022-07-14 00:03:55,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:03:55,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119550770] [2022-07-14 00:03:55,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:03:55,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:03:55,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:03:55,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:03:55,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:03:55,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:03:55,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:03:55,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:03:55,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:03:55,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:03:55,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:03:55,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:03:55,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:03:55,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-14 00:03:55,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:03:55,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-14 00:03:55,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:03:55,712 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-07-14 00:03:55,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:03:55,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119550770] [2022-07-14 00:03:55,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119550770] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:03:55,713 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:03:55,713 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 00:03:55,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775077579] [2022-07-14 00:03:55,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:03:55,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 00:03:55,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:03:55,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 00:03:55,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 00:03:55,714 INFO L87 Difference]: Start difference. First operand 6331 states and 8920 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-07-14 00:03:58,216 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 00:04:02,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:04:02,167 INFO L93 Difference]: Finished difference Result 7186 states and 10506 transitions. [2022-07-14 00:04:02,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 00:04:02,168 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 63 [2022-07-14 00:04:02,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:04:02,212 INFO L225 Difference]: With dead ends: 7186 [2022-07-14 00:04:02,212 INFO L226 Difference]: Without dead ends: 7183 [2022-07-14 00:04:02,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-14 00:04:02,218 INFO L413 NwaCegarLoop]: 1523 mSDtfsCounter, 2980 mSDsluCounter, 2179 mSDsCounter, 0 mSdLazyCounter, 1817 mSolverCounterSat, 1403 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3142 SdHoareTripleChecker+Valid, 3702 SdHoareTripleChecker+Invalid, 3221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1403 IncrementalHoareTripleChecker+Valid, 1817 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-07-14 00:04:02,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3142 Valid, 3702 Invalid, 3221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1403 Valid, 1817 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-07-14 00:04:02,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7183 states. [2022-07-14 00:04:02,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7183 to 6330. [2022-07-14 00:04:02,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6330 states, 4588 states have (on average 1.3055797733217087) internal successors, (5990), 4708 states have internal predecessors, (5990), 1262 states have call successors, (1262), 383 states have call predecessors, (1262), 479 states have return successors, (1666), 1274 states have call predecessors, (1666), 1258 states have call successors, (1666) [2022-07-14 00:04:02,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6330 states to 6330 states and 8918 transitions. [2022-07-14 00:04:02,476 INFO L78 Accepts]: Start accepts. Automaton has 6330 states and 8918 transitions. Word has length 63 [2022-07-14 00:04:02,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:04:02,478 INFO L495 AbstractCegarLoop]: Abstraction has 6330 states and 8918 transitions. [2022-07-14 00:04:02,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-07-14 00:04:02,479 INFO L276 IsEmpty]: Start isEmpty. Operand 6330 states and 8918 transitions. [2022-07-14 00:04:02,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-07-14 00:04:02,480 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:04:02,480 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:04:02,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-14 00:04:02,480 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:04:02,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:04:02,481 INFO L85 PathProgramCache]: Analyzing trace with hash -391585489, now seen corresponding path program 1 times [2022-07-14 00:04:02,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:04:02,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133526669] [2022-07-14 00:04:02,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:04:02,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:04:02,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:02,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:04:02,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:02,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:04:02,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:02,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:04:02,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:02,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:04:02,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:02,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:04:02,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:02,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-14 00:04:02,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:02,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-14 00:04:02,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:02,674 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-07-14 00:04:02,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:04:02,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133526669] [2022-07-14 00:04:02,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133526669] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:04:02,675 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:04:02,675 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 00:04:02,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568803783] [2022-07-14 00:04:02,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:04:02,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 00:04:02,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:04:02,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 00:04:02,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 00:04:02,677 INFO L87 Difference]: Start difference. First operand 6330 states and 8918 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-07-14 00:04:05,209 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 00:04:09,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:04:09,361 INFO L93 Difference]: Finished difference Result 7185 states and 10504 transitions. [2022-07-14 00:04:09,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 00:04:09,362 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 64 [2022-07-14 00:04:09,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:04:09,387 INFO L225 Difference]: With dead ends: 7185 [2022-07-14 00:04:09,388 INFO L226 Difference]: Without dead ends: 7182 [2022-07-14 00:04:09,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-14 00:04:09,390 INFO L413 NwaCegarLoop]: 1524 mSDtfsCounter, 2991 mSDsluCounter, 2155 mSDsCounter, 0 mSdLazyCounter, 1818 mSolverCounterSat, 1412 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3152 SdHoareTripleChecker+Valid, 3679 SdHoareTripleChecker+Invalid, 3231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1412 IncrementalHoareTripleChecker+Valid, 1818 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-07-14 00:04:09,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3152 Valid, 3679 Invalid, 3231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1412 Valid, 1818 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2022-07-14 00:04:09,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7182 states. [2022-07-14 00:04:09,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7182 to 6329. [2022-07-14 00:04:09,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6329 states, 4588 states have (on average 1.3053618134263296) internal successors, (5989), 4707 states have internal predecessors, (5989), 1261 states have call successors, (1261), 383 states have call predecessors, (1261), 479 states have return successors, (1666), 1274 states have call predecessors, (1666), 1258 states have call successors, (1666) [2022-07-14 00:04:09,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6329 states to 6329 states and 8916 transitions. [2022-07-14 00:04:09,587 INFO L78 Accepts]: Start accepts. Automaton has 6329 states and 8916 transitions. Word has length 64 [2022-07-14 00:04:09,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:04:09,588 INFO L495 AbstractCegarLoop]: Abstraction has 6329 states and 8916 transitions. [2022-07-14 00:04:09,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-07-14 00:04:09,588 INFO L276 IsEmpty]: Start isEmpty. Operand 6329 states and 8916 transitions. [2022-07-14 00:04:09,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-07-14 00:04:09,589 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:04:09,589 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:04:09,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-14 00:04:09,589 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:04:09,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:04:09,590 INFO L85 PathProgramCache]: Analyzing trace with hash 745278981, now seen corresponding path program 1 times [2022-07-14 00:04:09,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:04:09,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499241602] [2022-07-14 00:04:09,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:04:09,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:04:09,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:09,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:04:09,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:09,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:04:09,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:09,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:04:09,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:09,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:04:09,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:09,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:04:09,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:09,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-14 00:04:09,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:09,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-14 00:04:09,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:09,794 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-07-14 00:04:09,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:04:09,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499241602] [2022-07-14 00:04:09,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499241602] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:04:09,795 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:04:09,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 00:04:09,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146264413] [2022-07-14 00:04:09,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:04:09,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 00:04:09,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:04:09,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 00:04:09,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 00:04:09,796 INFO L87 Difference]: Start difference. First operand 6329 states and 8916 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-07-14 00:04:12,275 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 00:04:16,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:04:16,194 INFO L93 Difference]: Finished difference Result 7184 states and 10502 transitions. [2022-07-14 00:04:16,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 00:04:16,194 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 65 [2022-07-14 00:04:16,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:04:16,220 INFO L225 Difference]: With dead ends: 7184 [2022-07-14 00:04:16,220 INFO L226 Difference]: Without dead ends: 7181 [2022-07-14 00:04:16,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-14 00:04:16,224 INFO L413 NwaCegarLoop]: 1512 mSDtfsCounter, 2999 mSDsluCounter, 2163 mSDsCounter, 0 mSdLazyCounter, 1812 mSolverCounterSat, 1409 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3160 SdHoareTripleChecker+Valid, 3675 SdHoareTripleChecker+Invalid, 3222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1409 IncrementalHoareTripleChecker+Valid, 1812 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-07-14 00:04:16,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3160 Valid, 3675 Invalid, 3222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1409 Valid, 1812 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-07-14 00:04:16,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7181 states. [2022-07-14 00:04:16,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7181 to 6328. [2022-07-14 00:04:16,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6328 states, 4588 states have (on average 1.3051438535309503) internal successors, (5988), 4706 states have internal predecessors, (5988), 1260 states have call successors, (1260), 383 states have call predecessors, (1260), 479 states have return successors, (1666), 1274 states have call predecessors, (1666), 1258 states have call successors, (1666) [2022-07-14 00:04:16,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6328 states to 6328 states and 8914 transitions. [2022-07-14 00:04:16,462 INFO L78 Accepts]: Start accepts. Automaton has 6328 states and 8914 transitions. Word has length 65 [2022-07-14 00:04:16,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:04:16,463 INFO L495 AbstractCegarLoop]: Abstraction has 6328 states and 8914 transitions. [2022-07-14 00:04:16,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-07-14 00:04:16,463 INFO L276 IsEmpty]: Start isEmpty. Operand 6328 states and 8914 transitions. [2022-07-14 00:04:16,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-07-14 00:04:16,464 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:04:16,464 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:04:16,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-14 00:04:16,465 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:04:16,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:04:16,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1628344050, now seen corresponding path program 1 times [2022-07-14 00:04:16,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:04:16,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521262250] [2022-07-14 00:04:16,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:04:16,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:04:16,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:16,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:04:16,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:16,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:04:16,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:16,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:04:16,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:16,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:04:16,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:16,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:04:16,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:16,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-14 00:04:16,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:16,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-14 00:04:16,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:16,628 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-07-14 00:04:16,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:04:16,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521262250] [2022-07-14 00:04:16,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521262250] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:04:16,629 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:04:16,629 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 00:04:16,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862386431] [2022-07-14 00:04:16,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:04:16,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 00:04:16,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:04:16,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 00:04:16,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 00:04:16,631 INFO L87 Difference]: Start difference. First operand 6328 states and 8914 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-07-14 00:04:19,090 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 00:04:22,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:04:22,756 INFO L93 Difference]: Finished difference Result 7183 states and 10500 transitions. [2022-07-14 00:04:22,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 00:04:22,757 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 66 [2022-07-14 00:04:22,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:04:22,777 INFO L225 Difference]: With dead ends: 7183 [2022-07-14 00:04:22,777 INFO L226 Difference]: Without dead ends: 7171 [2022-07-14 00:04:22,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-14 00:04:22,779 INFO L413 NwaCegarLoop]: 1518 mSDtfsCounter, 2979 mSDsluCounter, 2150 mSDsCounter, 0 mSdLazyCounter, 1822 mSolverCounterSat, 1402 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3141 SdHoareTripleChecker+Valid, 3668 SdHoareTripleChecker+Invalid, 3225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1402 IncrementalHoareTripleChecker+Valid, 1822 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-07-14 00:04:22,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3141 Valid, 3668 Invalid, 3225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1402 Valid, 1822 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-07-14 00:04:22,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7171 states. [2022-07-14 00:04:22,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7171 to 6318. [2022-07-14 00:04:22,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6318 states, 4579 states have (on average 1.305088447259227) internal successors, (5976), 4696 states have internal predecessors, (5976), 1259 states have call successors, (1259), 383 states have call predecessors, (1259), 479 states have return successors, (1666), 1274 states have call predecessors, (1666), 1258 states have call successors, (1666) [2022-07-14 00:04:22,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6318 states to 6318 states and 8901 transitions. [2022-07-14 00:04:22,979 INFO L78 Accepts]: Start accepts. Automaton has 6318 states and 8901 transitions. Word has length 66 [2022-07-14 00:04:22,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:04:22,980 INFO L495 AbstractCegarLoop]: Abstraction has 6318 states and 8901 transitions. [2022-07-14 00:04:22,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-07-14 00:04:22,980 INFO L276 IsEmpty]: Start isEmpty. Operand 6318 states and 8901 transitions. [2022-07-14 00:04:22,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-07-14 00:04:22,984 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:04:22,985 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:04:22,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-14 00:04:22,985 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:04:22,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:04:22,985 INFO L85 PathProgramCache]: Analyzing trace with hash -878887734, now seen corresponding path program 1 times [2022-07-14 00:04:22,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:04:22,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569169204] [2022-07-14 00:04:22,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:04:22,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:04:23,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:23,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:04:23,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:23,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:04:23,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:23,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:04:23,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:23,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:04:23,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:23,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:04:23,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:23,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-14 00:04:23,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:23,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:04:23,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:23,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 00:04:23,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:23,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-14 00:04:23,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:23,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:04:23,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:23,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:04:23,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:23,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-14 00:04:23,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:23,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-14 00:04:23,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:23,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-14 00:04:23,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:23,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-14 00:04:23,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:23,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-14 00:04:23,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:23,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-14 00:04:23,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:23,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-14 00:04:23,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:23,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-14 00:04:23,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:23,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-14 00:04:23,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:23,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:04:23,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:23,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-14 00:04:23,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:23,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-14 00:04:23,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:23,340 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-07-14 00:04:23,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:04:23,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569169204] [2022-07-14 00:04:23,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569169204] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:04:23,341 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:04:23,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-14 00:04:23,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438457902] [2022-07-14 00:04:23,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:04:23,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-14 00:04:23,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:04:23,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-14 00:04:23,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-07-14 00:04:23,342 INFO L87 Difference]: Start difference. First operand 6318 states and 8901 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (24), 8 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-07-14 00:04:26,505 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 00:04:30,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:04:30,736 INFO L93 Difference]: Finished difference Result 15572 states and 22875 transitions. [2022-07-14 00:04:30,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-14 00:04:30,736 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (24), 8 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 173 [2022-07-14 00:04:30,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:04:30,772 INFO L225 Difference]: With dead ends: 15572 [2022-07-14 00:04:30,772 INFO L226 Difference]: Without dead ends: 9276 [2022-07-14 00:04:30,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=264, Unknown=0, NotChecked=0, Total=380 [2022-07-14 00:04:30,836 INFO L413 NwaCegarLoop]: 1342 mSDtfsCounter, 2281 mSDsluCounter, 3174 mSDsCounter, 0 mSdLazyCounter, 2881 mSolverCounterSat, 1497 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2397 SdHoareTripleChecker+Valid, 4516 SdHoareTripleChecker+Invalid, 4379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1497 IncrementalHoareTripleChecker+Valid, 2881 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-07-14 00:04:30,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2397 Valid, 4516 Invalid, 4379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1497 Valid, 2881 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2022-07-14 00:04:30,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9276 states. [2022-07-14 00:04:31,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9276 to 7472. [2022-07-14 00:04:31,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7472 states, 5377 states have (on average 1.2955179468104892) internal successors, (6966), 5497 states have internal predecessors, (6966), 1455 states have call successors, (1455), 420 states have call predecessors, (1455), 639 states have return successors, (2228), 1590 states have call predecessors, (2228), 1454 states have call successors, (2228) [2022-07-14 00:04:31,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7472 states to 7472 states and 10649 transitions. [2022-07-14 00:04:31,122 INFO L78 Accepts]: Start accepts. Automaton has 7472 states and 10649 transitions. Word has length 173 [2022-07-14 00:04:31,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:04:31,123 INFO L495 AbstractCegarLoop]: Abstraction has 7472 states and 10649 transitions. [2022-07-14 00:04:31,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (24), 8 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-07-14 00:04:31,123 INFO L276 IsEmpty]: Start isEmpty. Operand 7472 states and 10649 transitions. [2022-07-14 00:04:31,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-07-14 00:04:31,129 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:04:31,129 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:04:31,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-14 00:04:31,130 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:04:31,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:04:31,130 INFO L85 PathProgramCache]: Analyzing trace with hash 2055648344, now seen corresponding path program 1 times [2022-07-14 00:04:31,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:04:31,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451930479] [2022-07-14 00:04:31,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:04:31,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:04:31,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:31,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:04:31,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:31,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:04:31,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:31,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:04:31,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:31,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:04:31,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:31,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:04:31,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:31,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-14 00:04:31,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:31,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-14 00:04:31,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:31,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 00:04:31,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:31,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 00:04:31,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:31,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-14 00:04:31,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:31,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:04:31,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:31,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:04:31,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:31,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-14 00:04:31,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:31,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-14 00:04:31,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:31,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-14 00:04:31,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:31,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-14 00:04:31,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:31,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-14 00:04:31,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:31,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-14 00:04:31,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:31,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-14 00:04:31,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:31,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-14 00:04:31,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:31,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-14 00:04:31,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:31,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:04:31,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:31,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-14 00:04:31,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:31,593 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2022-07-14 00:04:31,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:04:31,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451930479] [2022-07-14 00:04:31,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451930479] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:04:31,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:04:31,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-14 00:04:31,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880249364] [2022-07-14 00:04:31,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:04:31,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-14 00:04:31,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:04:31,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-14 00:04:31,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-07-14 00:04:31,596 INFO L87 Difference]: Start difference. First operand 7472 states and 10649 transitions. Second operand has 10 states, 10 states have (on average 10.3) internal successors, (103), 4 states have internal predecessors, (103), 4 states have call successors, (24), 8 states have call predecessors, (24), 2 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2022-07-14 00:04:34,673 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 00:04:42,222 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 00:04:47,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:04:47,092 INFO L93 Difference]: Finished difference Result 19562 states and 30825 transitions. [2022-07-14 00:04:47,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-07-14 00:04:47,092 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 4 states have internal predecessors, (103), 4 states have call successors, (24), 8 states have call predecessors, (24), 2 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) Word has length 182 [2022-07-14 00:04:47,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:04:47,132 INFO L225 Difference]: With dead ends: 19562 [2022-07-14 00:04:47,132 INFO L226 Difference]: Without dead ends: 9216 [2022-07-14 00:04:47,177 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 294 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=248, Invalid=874, Unknown=0, NotChecked=0, Total=1122 [2022-07-14 00:04:47,178 INFO L413 NwaCegarLoop]: 2361 mSDtfsCounter, 6733 mSDsluCounter, 6258 mSDsCounter, 0 mSdLazyCounter, 7249 mSolverCounterSat, 4280 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7033 SdHoareTripleChecker+Valid, 8619 SdHoareTripleChecker+Invalid, 11531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4280 IncrementalHoareTripleChecker+Valid, 7249 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.6s IncrementalHoareTripleChecker+Time [2022-07-14 00:04:47,178 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7033 Valid, 8619 Invalid, 11531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4280 Valid, 7249 Invalid, 2 Unknown, 0 Unchecked, 14.6s Time] [2022-07-14 00:04:47,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9216 states. [2022-07-14 00:04:47,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9216 to 7422. [2022-07-14 00:04:47,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7422 states, 5327 states have (on average 1.2459170264689319) internal successors, (6637), 5447 states have internal predecessors, (6637), 1455 states have call successors, (1455), 420 states have call predecessors, (1455), 639 states have return successors, (2228), 1590 states have call predecessors, (2228), 1454 states have call successors, (2228) [2022-07-14 00:04:47,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7422 states to 7422 states and 10320 transitions. [2022-07-14 00:04:47,583 INFO L78 Accepts]: Start accepts. Automaton has 7422 states and 10320 transitions. Word has length 182 [2022-07-14 00:04:47,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:04:47,583 INFO L495 AbstractCegarLoop]: Abstraction has 7422 states and 10320 transitions. [2022-07-14 00:04:47,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 4 states have internal predecessors, (103), 4 states have call successors, (24), 8 states have call predecessors, (24), 2 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2022-07-14 00:04:47,584 INFO L276 IsEmpty]: Start isEmpty. Operand 7422 states and 10320 transitions. [2022-07-14 00:04:47,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-07-14 00:04:47,588 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:04:47,588 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:04:47,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-14 00:04:47,589 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:04:47,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:04:47,589 INFO L85 PathProgramCache]: Analyzing trace with hash 333645658, now seen corresponding path program 1 times [2022-07-14 00:04:47,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:04:47,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464579272] [2022-07-14 00:04:47,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:04:47,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:04:47,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:47,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:04:47,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:47,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:04:47,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:47,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:04:47,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:47,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:04:47,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:47,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:04:47,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:47,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-14 00:04:47,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:47,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-14 00:04:47,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:47,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 00:04:47,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:47,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 00:04:47,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:47,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-14 00:04:47,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:47,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:04:47,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:47,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:04:47,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:47,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-14 00:04:47,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:47,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-14 00:04:47,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:47,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-14 00:04:47,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:47,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-14 00:04:47,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:47,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-14 00:04:47,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:48,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-14 00:04:48,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:48,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-14 00:04:48,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:48,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-14 00:04:48,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:48,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-14 00:04:48,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:48,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:04:48,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:48,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-14 00:04:48,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:04:48,048 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2022-07-14 00:04:48,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:04:48,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464579272] [2022-07-14 00:04:48,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464579272] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:04:48,048 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:04:48,049 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-14 00:04:48,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745235923] [2022-07-14 00:04:48,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:04:48,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-14 00:04:48,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:04:48,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-14 00:04:48,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-07-14 00:04:48,050 INFO L87 Difference]: Start difference. First operand 7422 states and 10320 transitions. Second operand has 10 states, 10 states have (on average 10.3) internal successors, (103), 4 states have internal predecessors, (103), 4 states have call successors, (24), 8 states have call predecessors, (24), 2 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) [2022-07-14 00:04:51,181 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 00:04:59,239 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 00:05:07,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:05:07,194 INFO L93 Difference]: Finished difference Result 19409 states and 28983 transitions. [2022-07-14 00:05:07,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-07-14 00:05:07,195 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 4 states have internal predecessors, (103), 4 states have call successors, (24), 8 states have call predecessors, (24), 2 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) Word has length 182 [2022-07-14 00:05:07,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:05:07,222 INFO L225 Difference]: With dead ends: 19409 [2022-07-14 00:05:07,223 INFO L226 Difference]: Without dead ends: 9158 [2022-07-14 00:05:07,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 359 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=289, Invalid=1043, Unknown=0, NotChecked=0, Total=1332 [2022-07-14 00:05:07,246 INFO L413 NwaCegarLoop]: 2405 mSDtfsCounter, 4646 mSDsluCounter, 7346 mSDsCounter, 0 mSdLazyCounter, 8926 mSolverCounterSat, 2491 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4931 SdHoareTripleChecker+Valid, 9751 SdHoareTripleChecker+Invalid, 11419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2491 IncrementalHoareTripleChecker+Valid, 8926 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.1s IncrementalHoareTripleChecker+Time [2022-07-14 00:05:07,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4931 Valid, 9751 Invalid, 11419 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2491 Valid, 8926 Invalid, 2 Unknown, 0 Unchecked, 18.1s Time] [2022-07-14 00:05:07,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9158 states. [2022-07-14 00:05:07,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9158 to 7292. [2022-07-14 00:05:07,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7292 states, 5212 states have (on average 1.2432847275518035) internal successors, (6480), 5336 states have internal predecessors, (6480), 1439 states have call successors, (1439), 439 states have call predecessors, (1439), 640 states have return successors, (2165), 1554 states have call predecessors, (2165), 1438 states have call successors, (2165) [2022-07-14 00:05:07,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7292 states to 7292 states and 10084 transitions. [2022-07-14 00:05:07,662 INFO L78 Accepts]: Start accepts. Automaton has 7292 states and 10084 transitions. Word has length 182 [2022-07-14 00:05:07,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:05:07,662 INFO L495 AbstractCegarLoop]: Abstraction has 7292 states and 10084 transitions. [2022-07-14 00:05:07,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 4 states have internal predecessors, (103), 4 states have call successors, (24), 8 states have call predecessors, (24), 2 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) [2022-07-14 00:05:07,663 INFO L276 IsEmpty]: Start isEmpty. Operand 7292 states and 10084 transitions. [2022-07-14 00:05:07,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-07-14 00:05:07,672 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:05:07,672 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:05:07,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-14 00:05:07,673 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:05:07,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:05:07,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1756662636, now seen corresponding path program 1 times [2022-07-14 00:05:07,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:05:07,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819843629] [2022-07-14 00:05:07,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:05:07,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:05:07,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:07,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:05:07,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:07,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:05:07,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:07,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:05:07,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:07,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:05:07,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:07,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:05:07,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:07,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-14 00:05:07,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:07,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-14 00:05:07,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:07,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 00:05:07,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:07,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 00:05:07,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:07,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-14 00:05:07,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:07,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:05:07,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:07,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:05:07,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:07,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-14 00:05:07,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:07,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-14 00:05:07,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:07,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-14 00:05:07,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:07,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-14 00:05:07,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:08,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-14 00:05:08,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:08,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-14 00:05:08,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:08,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-14 00:05:08,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:08,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-14 00:05:08,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:08,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-14 00:05:08,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:08,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:05:08,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:08,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-14 00:05:08,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:08,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-14 00:05:08,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:08,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:05:08,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:08,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-14 00:05:08,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:08,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-14 00:05:08,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:08,125 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-07-14 00:05:08,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:05:08,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819843629] [2022-07-14 00:05:08,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819843629] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:05:08,126 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:05:08,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-14 00:05:08,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112774152] [2022-07-14 00:05:08,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:05:08,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-14 00:05:08,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:05:08,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-14 00:05:08,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-07-14 00:05:08,128 INFO L87 Difference]: Start difference. First operand 7292 states and 10084 transitions. Second operand has 9 states, 9 states have (on average 15.222222222222221) internal successors, (137), 3 states have internal predecessors, (137), 3 states have call successors, (28), 8 states have call predecessors, (28), 2 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2022-07-14 00:05:10,921 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 00:05:13,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:05:13,576 INFO L93 Difference]: Finished difference Result 14248 states and 20624 transitions. [2022-07-14 00:05:13,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-14 00:05:13,577 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.222222222222221) internal successors, (137), 3 states have internal predecessors, (137), 3 states have call successors, (28), 8 states have call predecessors, (28), 2 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 227 [2022-07-14 00:05:13,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:05:13,598 INFO L225 Difference]: With dead ends: 14248 [2022-07-14 00:05:13,598 INFO L226 Difference]: Without dead ends: 6616 [2022-07-14 00:05:13,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2022-07-14 00:05:13,617 INFO L413 NwaCegarLoop]: 751 mSDtfsCounter, 1732 mSDsluCounter, 1267 mSDsCounter, 0 mSdLazyCounter, 1665 mSolverCounterSat, 1023 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1820 SdHoareTripleChecker+Valid, 2018 SdHoareTripleChecker+Invalid, 2689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1023 IncrementalHoareTripleChecker+Valid, 1665 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-07-14 00:05:13,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1820 Valid, 2018 Invalid, 2689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1023 Valid, 1665 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-07-14 00:05:13,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6616 states. [2022-07-14 00:05:13,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6616 to 4994. [2022-07-14 00:05:13,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4994 states, 3541 states have (on average 1.2157582603784243) internal successors, (4305), 3620 states have internal predecessors, (4305), 902 states have call successors, (902), 373 states have call predecessors, (902), 550 states have return successors, (1449), 1026 states have call predecessors, (1449), 901 states have call successors, (1449) [2022-07-14 00:05:13,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4994 states to 4994 states and 6656 transitions. [2022-07-14 00:05:13,885 INFO L78 Accepts]: Start accepts. Automaton has 4994 states and 6656 transitions. Word has length 227 [2022-07-14 00:05:13,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:05:13,885 INFO L495 AbstractCegarLoop]: Abstraction has 4994 states and 6656 transitions. [2022-07-14 00:05:13,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.222222222222221) internal successors, (137), 3 states have internal predecessors, (137), 3 states have call successors, (28), 8 states have call predecessors, (28), 2 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2022-07-14 00:05:13,886 INFO L276 IsEmpty]: Start isEmpty. Operand 4994 states and 6656 transitions. [2022-07-14 00:05:13,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-07-14 00:05:13,893 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:05:13,893 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:05:13,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-14 00:05:13,893 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:05:13,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:05:13,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1517578895, now seen corresponding path program 1 times [2022-07-14 00:05:13,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:05:13,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491731424] [2022-07-14 00:05:13,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:05:13,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:05:13,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:14,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:05:14,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:14,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:05:14,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:14,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:05:14,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:14,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:05:14,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:14,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:05:14,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:14,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-14 00:05:14,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:14,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-14 00:05:14,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:14,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-14 00:05:14,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:14,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 00:05:14,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:14,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 00:05:14,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:14,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-14 00:05:14,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:14,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:05:14,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:14,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:05:14,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:14,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 00:05:14,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:14,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:05:14,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:14,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:05:14,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:14,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-14 00:05:14,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:14,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-14 00:05:14,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:14,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:05:14,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:14,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:05:14,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:14,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 00:05:14,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:14,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-14 00:05:14,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:14,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 00:05:14,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:14,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-14 00:05:14,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:14,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 00:05:14,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:14,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:05:14,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:14,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:05:14,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:14,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-14 00:05:14,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:14,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 00:05:14,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:14,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-14 00:05:14,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:14,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-14 00:05:14,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:14,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-14 00:05:14,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:14,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-14 00:05:14,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:14,547 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-07-14 00:05:14,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:05:14,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491731424] [2022-07-14 00:05:14,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491731424] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:05:14,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:05:14,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-14 00:05:14,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718830472] [2022-07-14 00:05:14,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:05:14,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-14 00:05:14,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:05:14,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-14 00:05:14,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2022-07-14 00:05:14,549 INFO L87 Difference]: Start difference. First operand 4994 states and 6656 transitions. Second operand has 13 states, 13 states have (on average 13.23076923076923) internal successors, (172), 4 states have internal predecessors, (172), 3 states have call successors, (34), 11 states have call predecessors, (34), 2 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2022-07-14 00:05:17,955 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 00:05:21,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:05:21,332 INFO L93 Difference]: Finished difference Result 12609 states and 18300 transitions. [2022-07-14 00:05:21,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-14 00:05:21,340 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 13.23076923076923) internal successors, (172), 4 states have internal predecessors, (172), 3 states have call successors, (34), 11 states have call predecessors, (34), 2 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 268 [2022-07-14 00:05:21,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:05:21,366 INFO L225 Difference]: With dead ends: 12609 [2022-07-14 00:05:21,367 INFO L226 Difference]: Without dead ends: 7641 [2022-07-14 00:05:21,377 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=176, Invalid=474, Unknown=0, NotChecked=0, Total=650 [2022-07-14 00:05:21,378 INFO L413 NwaCegarLoop]: 789 mSDtfsCounter, 2022 mSDsluCounter, 2096 mSDsCounter, 0 mSdLazyCounter, 2928 mSolverCounterSat, 1271 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2056 SdHoareTripleChecker+Valid, 2885 SdHoareTripleChecker+Invalid, 4200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1271 IncrementalHoareTripleChecker+Valid, 2928 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-07-14 00:05:21,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2056 Valid, 2885 Invalid, 4200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1271 Valid, 2928 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-07-14 00:05:21,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7641 states. [2022-07-14 00:05:21,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7641 to 5139. [2022-07-14 00:05:21,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5139 states, 3669 states have (on average 1.2210411556282366) internal successors, (4480), 3738 states have internal predecessors, (4480), 943 states have call successors, (943), 417 states have call predecessors, (943), 526 states have return successors, (1310), 1014 states have call predecessors, (1310), 942 states have call successors, (1310) [2022-07-14 00:05:21,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5139 states to 5139 states and 6733 transitions. [2022-07-14 00:05:21,693 INFO L78 Accepts]: Start accepts. Automaton has 5139 states and 6733 transitions. Word has length 268 [2022-07-14 00:05:21,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:05:21,693 INFO L495 AbstractCegarLoop]: Abstraction has 5139 states and 6733 transitions. [2022-07-14 00:05:21,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 13.23076923076923) internal successors, (172), 4 states have internal predecessors, (172), 3 states have call successors, (34), 11 states have call predecessors, (34), 2 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2022-07-14 00:05:21,693 INFO L276 IsEmpty]: Start isEmpty. Operand 5139 states and 6733 transitions. [2022-07-14 00:05:21,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2022-07-14 00:05:21,701 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:05:21,701 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:05:21,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-14 00:05:21,701 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:05:21,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:05:21,702 INFO L85 PathProgramCache]: Analyzing trace with hash -953087407, now seen corresponding path program 1 times [2022-07-14 00:05:21,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:05:21,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547085671] [2022-07-14 00:05:21,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:05:21,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:05:21,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:21,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:05:21,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:21,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:05:21,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:21,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:05:21,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:21,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:05:21,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:21,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:05:21,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:21,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-14 00:05:21,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:21,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-14 00:05:21,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:21,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 00:05:21,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:21,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 00:05:21,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:21,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-14 00:05:21,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:21,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:05:21,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:21,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:05:21,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:21,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-14 00:05:21,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:22,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 00:05:22,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:22,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 00:05:22,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:22,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-14 00:05:22,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:22,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-14 00:05:22,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:22,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:05:22,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:22,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:05:22,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:22,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 00:05:22,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:22,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:05:22,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:22,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:05:22,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:22,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-14 00:05:22,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:22,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-14 00:05:22,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:22,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:05:22,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:22,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:05:22,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:22,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 00:05:22,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:22,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-14 00:05:22,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:22,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 00:05:22,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:22,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-14 00:05:22,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:22,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 00:05:22,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:22,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:05:22,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:22,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:05:22,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:22,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-14 00:05:22,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:22,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 00:05:22,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:22,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-14 00:05:22,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:22,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-14 00:05:22,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:22,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-14 00:05:22,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:22,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-07-14 00:05:22,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:22,450 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2022-07-14 00:05:22,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:05:22,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547085671] [2022-07-14 00:05:22,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547085671] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 00:05:22,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1236668331] [2022-07-14 00:05:22,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:05:22,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:05:22,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:05:22,453 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 00:05:22,456 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 00:05:23,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:23,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 3679 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 00:05:23,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:05:23,318 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2022-07-14 00:05:23,319 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:05:23,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1236668331] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:05:23,319 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 00:05:23,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [13] total 14 [2022-07-14 00:05:23,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217178062] [2022-07-14 00:05:23,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:05:23,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:05:23,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:05:23,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:05:23,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2022-07-14 00:05:23,321 INFO L87 Difference]: Start difference. First operand 5139 states and 6733 transitions. Second operand has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-07-14 00:05:23,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:05:23,544 INFO L93 Difference]: Finished difference Result 10279 states and 13925 transitions. [2022-07-14 00:05:23,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:05:23,545 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 316 [2022-07-14 00:05:23,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:05:23,560 INFO L225 Difference]: With dead ends: 10279 [2022-07-14 00:05:23,560 INFO L226 Difference]: Without dead ends: 5166 [2022-07-14 00:05:23,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 399 GetRequests, 387 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2022-07-14 00:05:23,570 INFO L413 NwaCegarLoop]: 821 mSDtfsCounter, 2 mSDsluCounter, 817 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1638 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 00:05:23,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1638 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 00:05:23,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5166 states. [2022-07-14 00:05:23,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5166 to 5145. [2022-07-14 00:05:23,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5145 states, 3675 states have (on average 1.2206802721088434) internal successors, (4486), 3744 states have internal predecessors, (4486), 943 states have call successors, (943), 417 states have call predecessors, (943), 526 states have return successors, (1310), 1014 states have call predecessors, (1310), 942 states have call successors, (1310) [2022-07-14 00:05:23,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5145 states to 5145 states and 6739 transitions. [2022-07-14 00:05:23,830 INFO L78 Accepts]: Start accepts. Automaton has 5145 states and 6739 transitions. Word has length 316 [2022-07-14 00:05:23,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:05:23,830 INFO L495 AbstractCegarLoop]: Abstraction has 5145 states and 6739 transitions. [2022-07-14 00:05:23,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-07-14 00:05:23,830 INFO L276 IsEmpty]: Start isEmpty. Operand 5145 states and 6739 transitions. [2022-07-14 00:05:23,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2022-07-14 00:05:23,838 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:05:23,838 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:05:23,861 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 00:05:24,051 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,SelfDestructingSolverStorable12 [2022-07-14 00:05:24,051 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:05:24,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:05:24,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1543928242, now seen corresponding path program 1 times [2022-07-14 00:05:24,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:05:24,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168156869] [2022-07-14 00:05:24,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:05:24,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:05:24,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:24,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:05:24,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:24,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:05:24,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:24,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:05:24,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:24,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:05:24,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:24,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:05:24,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:24,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-14 00:05:24,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:24,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-14 00:05:24,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:24,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 00:05:24,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:24,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 00:05:24,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:24,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-14 00:05:24,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:24,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:05:24,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:24,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:05:24,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:24,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-14 00:05:24,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:24,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 00:05:24,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:24,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 00:05:24,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:24,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-14 00:05:24,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:24,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-14 00:05:24,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:24,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-14 00:05:24,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:24,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:05:24,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:24,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:05:24,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:24,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:05:24,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:24,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 00:05:24,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:24,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-14 00:05:24,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:24,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-14 00:05:24,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:24,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-14 00:05:24,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:24,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:05:24,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:24,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:05:24,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:24,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 00:05:24,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:24,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-14 00:05:24,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:24,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 00:05:24,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:24,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-14 00:05:24,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:24,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 00:05:24,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:24,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:05:24,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:24,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:05:24,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:24,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-14 00:05:24,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:24,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 00:05:24,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:24,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-14 00:05:24,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:24,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-14 00:05:24,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:24,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-14 00:05:24,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:24,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-14 00:05:24,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:24,829 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2022-07-14 00:05:24,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:05:24,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168156869] [2022-07-14 00:05:24,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168156869] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 00:05:24,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [349964783] [2022-07-14 00:05:24,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:05:24,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:05:24,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:05:24,831 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 00:05:24,832 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 00:05:25,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:25,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 3713 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 00:05:25,729 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:05:25,786 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-07-14 00:05:25,786 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:05:25,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [349964783] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:05:25,787 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 00:05:25,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [13] total 16 [2022-07-14 00:05:25,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952128903] [2022-07-14 00:05:25,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:05:25,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 00:05:25,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:05:25,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 00:05:25,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2022-07-14 00:05:25,788 INFO L87 Difference]: Start difference. First operand 5145 states and 6739 transitions. Second operand has 5 states, 5 states have (on average 41.8) internal successors, (209), 4 states have internal predecessors, (209), 2 states have call successors, (41), 2 states have call predecessors, (41), 3 states have return successors, (40), 3 states have call predecessors, (40), 2 states have call successors, (40) [2022-07-14 00:05:25,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:05:25,871 INFO L93 Difference]: Finished difference Result 5760 states and 7511 transitions. [2022-07-14 00:05:25,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 00:05:25,872 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 41.8) internal successors, (209), 4 states have internal predecessors, (209), 2 states have call successors, (41), 2 states have call predecessors, (41), 3 states have return successors, (40), 3 states have call predecessors, (40), 2 states have call successors, (40) Word has length 324 [2022-07-14 00:05:25,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:05:25,874 INFO L225 Difference]: With dead ends: 5760 [2022-07-14 00:05:25,874 INFO L226 Difference]: Without dead ends: 0 [2022-07-14 00:05:25,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 395 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2022-07-14 00:05:25,883 INFO L413 NwaCegarLoop]: 366 mSDtfsCounter, 170 mSDsluCounter, 918 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 1284 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 00:05:25,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 1284 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 00:05:25,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-14 00:05:25,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-14 00:05:25,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 00:05:25,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-14 00:05:25,884 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 324 [2022-07-14 00:05:25,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:05:25,884 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-14 00:05:25,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 41.8) internal successors, (209), 4 states have internal predecessors, (209), 2 states have call successors, (41), 2 states have call predecessors, (41), 3 states have return successors, (40), 3 states have call predecessors, (40), 2 states have call successors, (40) [2022-07-14 00:05:25,884 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-14 00:05:25,884 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-14 00:05:25,886 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-14 00:05:25,924 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 00:05:26,109 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,SelfDestructingSolverStorable13 [2022-07-14 00:05:26,111 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-14 00:06:08,615 WARN L233 SmtUtils]: Spent 6.54s on a formula simplification. DAG size of input: 71 DAG size of output: 67 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-07-14 00:06:15,119 WARN L233 SmtUtils]: Spent 6.50s on a formula simplification. DAG size of input: 71 DAG size of output: 67 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-07-14 00:06:21,608 WARN L233 SmtUtils]: Spent 6.49s on a formula simplification. DAG size of input: 71 DAG size of output: 67 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-07-14 00:06:28,625 WARN L233 SmtUtils]: Spent 6.47s on a formula simplification. DAG size of input: 71 DAG size of output: 67 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-07-14 00:06:38,854 WARN L233 SmtUtils]: Spent 6.46s on a formula simplification. DAG size of input: 71 DAG size of output: 67 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or)