./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec6_product12.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/email_spec6_product12.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-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 32bit --witnessprinter.graph.data.programhash 6a023004d1923934c700fbd43377f50b99f9b3dcadd2a9eb1f89b20b18aa1436 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 06:08:56,470 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 06:08:56,471 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 06:08:56,501 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 06:08:56,502 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 06:08:56,503 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 06:08:56,506 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 06:08:56,511 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 06:08:56,512 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 06:08:56,516 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 06:08:56,517 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 06:08:56,518 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 06:08:56,519 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 06:08:56,520 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 06:08:56,522 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 06:08:56,523 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 06:08:56,523 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 06:08:56,525 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 06:08:56,527 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 06:08:56,531 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 06:08:56,533 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 06:08:56,534 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 06:08:56,534 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 06:08:56,535 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 06:08:56,536 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 06:08:56,541 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 06:08:56,541 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 06:08:56,542 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 06:08:56,543 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 06:08:56,544 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 06:08:56,544 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 06:08:56,545 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 06:08:56,546 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 06:08:56,546 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 06:08:56,547 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 06:08:56,547 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 06:08:56,547 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 06:08:56,548 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 06:08:56,548 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 06:08:56,548 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 06:08:56,549 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 06:08:56,550 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 06:08:56,552 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 06:08:56,577 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 06:08:56,577 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 06:08:56,578 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 06:08:56,578 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 06:08:56,579 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 06:08:56,579 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 06:08:56,579 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 06:08:56,579 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 06:08:56,580 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 06:08:56,580 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 06:08:56,581 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 06:08:56,581 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 06:08:56,581 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 06:08:56,581 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 06:08:56,581 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 06:08:56,581 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 06:08:56,582 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 06:08:56,582 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 06:08:56,582 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 06:08:56,582 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 06:08:56,582 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 06:08:56,582 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 06:08:56,583 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 06:08:56,583 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 06:08:56,583 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 06:08:56,583 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 06:08:56,583 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 06:08:56,584 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 06:08:56,584 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 06:08:56,584 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 06:08:56,584 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 06:08:56,584 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 06:08:56,584 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 06:08:56,585 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6a023004d1923934c700fbd43377f50b99f9b3dcadd2a9eb1f89b20b18aa1436 [2022-07-12 06:08:56,778 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 06:08:56,800 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 06:08:56,803 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 06:08:56,804 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 06:08:56,804 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 06:08:56,805 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec6_product12.cil.c [2022-07-12 06:08:56,862 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a4f82055/7469ea51729b49c5a5c4f1fb8add9bc6/FLAG2307039f0 [2022-07-12 06:08:57,384 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 06:08:57,385 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec6_product12.cil.c [2022-07-12 06:08:57,404 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a4f82055/7469ea51729b49c5a5c4f1fb8add9bc6/FLAG2307039f0 [2022-07-12 06:08:57,828 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a4f82055/7469ea51729b49c5a5c4f1fb8add9bc6 [2022-07-12 06:08:57,831 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 06:08:57,832 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 06:08:57,833 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 06:08:57,833 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 06:08:57,836 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 06:08:57,836 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 06:08:57" (1/1) ... [2022-07-12 06:08:57,837 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a640464 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:08:57, skipping insertion in model container [2022-07-12 06:08:57,837 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 06:08:57" (1/1) ... [2022-07-12 06:08:57,843 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 06:08:57,904 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 06:08:58,420 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/product-lines/email_spec6_product12.cil.c[52000,52013] [2022-07-12 06:08:58,440 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 06:08:58,449 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 06:08:58,517 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/product-lines/email_spec6_product12.cil.c[52000,52013] [2022-07-12 06:08:58,524 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 06:08:58,549 INFO L208 MainTranslator]: Completed translation [2022-07-12 06:08:58,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:08:58 WrapperNode [2022-07-12 06:08:58,550 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 06:08:58,551 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 06:08:58,551 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 06:08:58,551 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 06:08:58,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:08:58" (1/1) ... [2022-07-12 06:08:58,575 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:08:58" (1/1) ... [2022-07-12 06:08:58,613 INFO L137 Inliner]: procedures = 123, calls = 193, calls flagged for inlining = 49, calls inlined = 39, statements flattened = 807 [2022-07-12 06:08:58,622 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 06:08:58,623 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 06:08:58,624 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 06:08:58,624 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 06:08:58,629 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:08:58" (1/1) ... [2022-07-12 06:08:58,630 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:08:58" (1/1) ... [2022-07-12 06:08:58,647 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:08:58" (1/1) ... [2022-07-12 06:08:58,647 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:08:58" (1/1) ... [2022-07-12 06:08:58,656 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:08:58" (1/1) ... [2022-07-12 06:08:58,677 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:08:58" (1/1) ... [2022-07-12 06:08:58,681 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:08:58" (1/1) ... [2022-07-12 06:08:58,686 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 06:08:58,700 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 06:08:58,700 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 06:08:58,700 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 06:08:58,708 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:08:58" (1/1) ... [2022-07-12 06:08:58,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 06:08:58,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 06:08:58,738 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-12 06:08:58,746 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-12 06:08:58,783 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-07-12 06:08:58,783 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-07-12 06:08:58,784 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-07-12 06:08:58,784 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-07-12 06:08:58,784 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-07-12 06:08:58,784 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-07-12 06:08:58,784 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-07-12 06:08:58,787 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-07-12 06:08:58,787 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-07-12 06:08:58,787 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-07-12 06:08:58,787 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-07-12 06:08:58,787 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-07-12 06:08:58,787 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-07-12 06:08:58,787 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-07-12 06:08:58,787 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-07-12 06:08:58,787 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-07-12 06:08:58,787 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-07-12 06:08:58,787 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-07-12 06:08:58,787 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-07-12 06:08:58,788 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 06:08:58,788 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-07-12 06:08:58,788 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-07-12 06:08:58,788 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-07-12 06:08:58,788 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-07-12 06:08:58,788 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-07-12 06:08:58,788 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-07-12 06:08:58,788 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-07-12 06:08:58,788 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-07-12 06:08:58,788 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-07-12 06:08:58,788 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-07-12 06:08:58,788 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-07-12 06:08:58,788 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-07-12 06:08:58,788 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-07-12 06:08:58,788 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-07-12 06:08:58,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 06:08:58,788 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-07-12 06:08:58,788 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-07-12 06:08:58,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 06:08:58,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 06:08:58,986 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 06:08:58,988 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 06:08:59,516 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 06:08:59,523 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 06:08:59,523 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-12 06:08:59,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 06:08:59 BoogieIcfgContainer [2022-07-12 06:08:59,531 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 06:08:59,533 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 06:08:59,533 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 06:08:59,535 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 06:08:59,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 06:08:57" (1/3) ... [2022-07-12 06:08:59,536 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ff95a02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 06:08:59, skipping insertion in model container [2022-07-12 06:08:59,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:08:58" (2/3) ... [2022-07-12 06:08:59,536 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ff95a02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 06:08:59, skipping insertion in model container [2022-07-12 06:08:59,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 06:08:59" (3/3) ... [2022-07-12 06:08:59,537 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec6_product12.cil.c [2022-07-12 06:08:59,550 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 06:08:59,551 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 06:08:59,604 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 06:08:59,609 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@22c6cc85, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@64099dfe [2022-07-12 06:08:59,609 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 06:08:59,613 INFO L276 IsEmpty]: Start isEmpty. Operand has 274 states, 212 states have (on average 1.5377358490566038) internal successors, (326), 216 states have internal predecessors, (326), 43 states have call successors, (43), 17 states have call predecessors, (43), 17 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2022-07-12 06:08:59,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-07-12 06:08:59,625 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:08:59,626 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2022-07-12 06:08:59,626 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:08:59,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:08:59,630 INFO L85 PathProgramCache]: Analyzing trace with hash 950381241, now seen corresponding path program 1 times [2022-07-12 06:08:59,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:08:59,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743971252] [2022-07-12 06:08:59,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:08:59,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:08:59,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:08:59,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 06:08:59,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:08:59,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 06:08:59,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:00,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 06:09:00,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:00,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-12 06:09:00,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:00,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-12 06:09:00,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:00,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 06:09:00,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:00,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 06:09:00,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:00,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 06:09:00,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:00,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-12 06:09:00,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:00,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-12 06:09:00,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:00,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-12 06:09:00,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:00,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 06:09:00,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:00,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-12 06:09:00,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:00,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-12 06:09:00,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:00,113 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-07-12 06:09:00,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:09:00,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743971252] [2022-07-12 06:09:00,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743971252] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 06:09:00,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1637601122] [2022-07-12 06:09:00,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:09:00,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 06:09:00,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 06:09:00,133 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 06:09:00,151 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-12 06:09:00,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:00,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 1025 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-12 06:09:00,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 06:09:00,444 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-07-12 06:09:00,445 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 06:09:00,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1637601122] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:09:00,448 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 06:09:00,448 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [8] total 8 [2022-07-12 06:09:00,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391120918] [2022-07-12 06:09:00,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:09:00,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-12 06:09:00,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:09:00,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-12 06:09:00,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-12 06:09:00,481 INFO L87 Difference]: Start difference. First operand has 274 states, 212 states have (on average 1.5377358490566038) internal successors, (326), 216 states have internal predecessors, (326), 43 states have call successors, (43), 17 states have call predecessors, (43), 17 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) Second operand has 2 states, 2 states have (on average 31.5) internal successors, (63), 2 states have internal predecessors, (63), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 06:09:00,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:09:00,526 INFO L93 Difference]: Finished difference Result 399 states and 586 transitions. [2022-07-12 06:09:00,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-12 06:09:00,532 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 31.5) internal successors, (63), 2 states have internal predecessors, (63), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 111 [2022-07-12 06:09:00,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:09:00,543 INFO L225 Difference]: With dead ends: 399 [2022-07-12 06:09:00,543 INFO L226 Difference]: Without dead ends: 267 [2022-07-12 06:09:00,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-12 06:09:00,549 INFO L413 NwaCegarLoop]: 408 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 06:09:00,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 06:09:00,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2022-07-12 06:09:00,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 267. [2022-07-12 06:09:00,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 206 states have (on average 1.529126213592233) internal successors, (315), 209 states have internal predecessors, (315), 43 states have call successors, (43), 17 states have call predecessors, (43), 17 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2022-07-12 06:09:00,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 400 transitions. [2022-07-12 06:09:00,612 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 400 transitions. Word has length 111 [2022-07-12 06:09:00,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:09:00,614 INFO L495 AbstractCegarLoop]: Abstraction has 267 states and 400 transitions. [2022-07-12 06:09:00,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.5) internal successors, (63), 2 states have internal predecessors, (63), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 06:09:00,614 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 400 transitions. [2022-07-12 06:09:00,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-07-12 06:09:00,618 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:09:00,618 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2022-07-12 06:09:00,648 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-12 06:09:00,848 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,SelfDestructingSolverStorable0 [2022-07-12 06:09:00,848 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:09:00,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:09:00,849 INFO L85 PathProgramCache]: Analyzing trace with hash -347138604, now seen corresponding path program 1 times [2022-07-12 06:09:00,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:09:00,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286555876] [2022-07-12 06:09:00,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:09:00,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:09:00,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:00,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 06:09:00,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:00,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 06:09:00,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:00,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 06:09:00,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:00,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-12 06:09:00,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:00,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-12 06:09:00,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:00,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 06:09:00,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:00,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-12 06:09:00,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:00,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-12 06:09:00,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:00,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-12 06:09:00,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:00,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-12 06:09:00,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:00,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-12 06:09:00,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:00,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-12 06:09:00,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:00,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 06:09:00,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:00,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 06:09:01,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:01,010 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-07-12 06:09:01,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:09:01,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286555876] [2022-07-12 06:09:01,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286555876] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 06:09:01,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1328844455] [2022-07-12 06:09:01,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:09:01,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 06:09:01,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 06:09:01,012 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 06:09:01,042 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-12 06:09:01,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:01,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 1026 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 06:09:01,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 06:09:01,250 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-07-12 06:09:01,250 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 06:09:01,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1328844455] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:09:01,251 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 06:09:01,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2022-07-12 06:09:01,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971912166] [2022-07-12 06:09:01,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:09:01,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 06:09:01,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:09:01,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 06:09:01,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 06:09:01,253 INFO L87 Difference]: Start difference. First operand 267 states and 400 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 06:09:01,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:09:01,300 INFO L93 Difference]: Finished difference Result 389 states and 567 transitions. [2022-07-12 06:09:01,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 06:09:01,301 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 112 [2022-07-12 06:09:01,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:09:01,303 INFO L225 Difference]: With dead ends: 389 [2022-07-12 06:09:01,303 INFO L226 Difference]: Without dead ends: 270 [2022-07-12 06:09:01,304 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 06:09:01,305 INFO L413 NwaCegarLoop]: 398 mSDtfsCounter, 1 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 794 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 06:09:01,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 794 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 06:09:01,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2022-07-12 06:09:01,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 269. [2022-07-12 06:09:01,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 208 states have (on average 1.5240384615384615) internal successors, (317), 211 states have internal predecessors, (317), 43 states have call successors, (43), 17 states have call predecessors, (43), 17 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2022-07-12 06:09:01,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 402 transitions. [2022-07-12 06:09:01,326 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 402 transitions. Word has length 112 [2022-07-12 06:09:01,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:09:01,326 INFO L495 AbstractCegarLoop]: Abstraction has 269 states and 402 transitions. [2022-07-12 06:09:01,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 06:09:01,327 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 402 transitions. [2022-07-12 06:09:01,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-07-12 06:09:01,334 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:09:01,334 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2022-07-12 06:09:01,371 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-12 06:09:01,551 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,SelfDestructingSolverStorable1 [2022-07-12 06:09:01,552 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:09:01,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:09:01,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1661890211, now seen corresponding path program 1 times [2022-07-12 06:09:01,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:09:01,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759108044] [2022-07-12 06:09:01,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:09:01,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:09:01,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:01,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 06:09:01,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:01,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 06:09:01,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:01,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 06:09:01,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:01,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-12 06:09:01,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:01,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-12 06:09:01,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:01,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 06:09:01,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:01,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 06:09:01,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:01,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-12 06:09:01,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:01,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-12 06:09:01,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:01,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-12 06:09:01,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:01,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 06:09:01,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:01,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 06:09:01,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:01,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 06:09:01,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:01,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-12 06:09:01,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:01,646 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-07-12 06:09:01,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:09:01,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759108044] [2022-07-12 06:09:01,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759108044] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 06:09:01,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1206552854] [2022-07-12 06:09:01,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:09:01,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 06:09:01,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 06:09:01,664 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 06:09:01,666 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-12 06:09:01,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:01,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 1040 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 06:09:01,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 06:09:01,931 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-07-12 06:09:01,933 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 06:09:01,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1206552854] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:09:01,933 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 06:09:01,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2022-07-12 06:09:01,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916756803] [2022-07-12 06:09:01,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:09:01,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 06:09:01,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:09:01,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 06:09:01,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 06:09:01,935 INFO L87 Difference]: Start difference. First operand 269 states and 402 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 06:09:01,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:09:01,968 INFO L93 Difference]: Finished difference Result 563 states and 855 transitions. [2022-07-12 06:09:01,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 06:09:01,972 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 118 [2022-07-12 06:09:01,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:09:01,974 INFO L225 Difference]: With dead ends: 563 [2022-07-12 06:09:01,975 INFO L226 Difference]: Without dead ends: 321 [2022-07-12 06:09:01,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 06:09:01,979 INFO L413 NwaCegarLoop]: 417 mSDtfsCounter, 99 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 768 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 06:09:01,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 768 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 06:09:01,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2022-07-12 06:09:01,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 313. [2022-07-12 06:09:01,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 241 states have (on average 1.5394190871369295) internal successors, (371), 244 states have internal predecessors, (371), 54 states have call successors, (54), 17 states have call predecessors, (54), 17 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2022-07-12 06:09:02,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 478 transitions. [2022-07-12 06:09:02,002 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 478 transitions. Word has length 118 [2022-07-12 06:09:02,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:09:02,004 INFO L495 AbstractCegarLoop]: Abstraction has 313 states and 478 transitions. [2022-07-12 06:09:02,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 06:09:02,004 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 478 transitions. [2022-07-12 06:09:02,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-07-12 06:09:02,008 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:09:02,008 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2022-07-12 06:09:02,036 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-12 06:09:02,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 06:09:02,216 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:09:02,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:09:02,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1202284878, now seen corresponding path program 1 times [2022-07-12 06:09:02,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:09:02,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253233240] [2022-07-12 06:09:02,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:09:02,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:09:02,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:02,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 06:09:02,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:02,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 06:09:02,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:02,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 06:09:02,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:02,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-12 06:09:02,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:02,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-12 06:09:02,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:02,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 06:09:02,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:02,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-12 06:09:02,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:02,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 06:09:02,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:02,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-12 06:09:02,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:02,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-12 06:09:02,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:02,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-12 06:09:02,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:02,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-12 06:09:02,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:02,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-12 06:09:02,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:02,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-12 06:09:02,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:02,325 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-07-12 06:09:02,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:09:02,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253233240] [2022-07-12 06:09:02,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253233240] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 06:09:02,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [94410894] [2022-07-12 06:09:02,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:09:02,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 06:09:02,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 06:09:02,331 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 06:09:02,356 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-12 06:09:02,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:02,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 1047 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-12 06:09:02,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 06:09:02,609 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-12 06:09:02,609 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 06:09:02,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [94410894] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:09:02,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 06:09:02,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2022-07-12 06:09:02,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479419142] [2022-07-12 06:09:02,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:09:02,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 06:09:02,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:09:02,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 06:09:02,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-07-12 06:09:02,611 INFO L87 Difference]: Start difference. First operand 313 states and 478 transitions. Second operand has 5 states, 4 states have (on average 19.75) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-12 06:09:02,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:09:02,666 INFO L93 Difference]: Finished difference Result 617 states and 946 transitions. [2022-07-12 06:09:02,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 06:09:02,667 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.75) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 119 [2022-07-12 06:09:02,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:09:02,670 INFO L225 Difference]: With dead ends: 617 [2022-07-12 06:09:02,670 INFO L226 Difference]: Without dead ends: 315 [2022-07-12 06:09:02,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-07-12 06:09:02,674 INFO L413 NwaCegarLoop]: 391 mSDtfsCounter, 117 mSDsluCounter, 1036 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 1427 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 06:09:02,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 1427 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 06:09:02,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2022-07-12 06:09:02,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 315. [2022-07-12 06:09:02,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 242 states have (on average 1.537190082644628) internal successors, (372), 246 states have internal predecessors, (372), 54 states have call successors, (54), 17 states have call predecessors, (54), 18 states have return successors, (55), 53 states have call predecessors, (55), 53 states have call successors, (55) [2022-07-12 06:09:02,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 481 transitions. [2022-07-12 06:09:02,718 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 481 transitions. Word has length 119 [2022-07-12 06:09:02,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:09:02,719 INFO L495 AbstractCegarLoop]: Abstraction has 315 states and 481 transitions. [2022-07-12 06:09:02,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.75) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-12 06:09:02,723 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 481 transitions. [2022-07-12 06:09:02,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-07-12 06:09:02,728 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:09:02,728 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-07-12 06:09:02,749 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-12 06:09:02,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 06:09:02,940 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:09:02,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:09:02,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1757606202, now seen corresponding path program 1 times [2022-07-12 06:09:02,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:09:02,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022651585] [2022-07-12 06:09:02,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:09:02,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:09:02,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:03,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 06:09:03,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:03,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 06:09:03,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:03,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 06:09:03,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:03,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 06:09:03,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:03,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-12 06:09:03,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:03,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-12 06:09:03,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:03,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 06:09:03,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:03,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-12 06:09:03,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:03,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 06:09:03,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:03,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-12 06:09:03,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:03,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-12 06:09:03,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:03,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-12 06:09:03,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:03,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-12 06:09:03,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:03,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-12 06:09:03,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:03,098 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-07-12 06:09:03,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:09:03,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022651585] [2022-07-12 06:09:03,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022651585] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 06:09:03,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1797293495] [2022-07-12 06:09:03,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:09:03,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 06:09:03,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 06:09:03,101 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 06:09:03,102 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-12 06:09:03,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:03,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 1048 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-12 06:09:03,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 06:09:03,371 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-12 06:09:03,387 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 06:09:03,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1797293495] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:09:03,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 06:09:03,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 14 [2022-07-12 06:09:03,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808444939] [2022-07-12 06:09:03,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:09:03,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 06:09:03,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:09:03,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 06:09:03,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-07-12 06:09:03,390 INFO L87 Difference]: Start difference. First operand 315 states and 481 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-12 06:09:03,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:09:03,451 INFO L93 Difference]: Finished difference Result 619 states and 951 transitions. [2022-07-12 06:09:03,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 06:09:03,451 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 120 [2022-07-12 06:09:03,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:09:03,463 INFO L225 Difference]: With dead ends: 619 [2022-07-12 06:09:03,463 INFO L226 Difference]: Without dead ends: 317 [2022-07-12 06:09:03,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2022-07-12 06:09:03,465 INFO L413 NwaCegarLoop]: 389 mSDtfsCounter, 116 mSDsluCounter, 1027 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 1416 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 06:09:03,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 1416 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 06:09:03,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2022-07-12 06:09:03,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317. [2022-07-12 06:09:03,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 243 states have (on average 1.5349794238683128) internal successors, (373), 248 states have internal predecessors, (373), 54 states have call successors, (54), 17 states have call predecessors, (54), 19 states have return successors, (60), 53 states have call predecessors, (60), 53 states have call successors, (60) [2022-07-12 06:09:03,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 487 transitions. [2022-07-12 06:09:03,493 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 487 transitions. Word has length 120 [2022-07-12 06:09:03,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:09:03,494 INFO L495 AbstractCegarLoop]: Abstraction has 317 states and 487 transitions. [2022-07-12 06:09:03,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-12 06:09:03,494 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 487 transitions. [2022-07-12 06:09:03,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-07-12 06:09:03,496 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:09:03,496 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 06:09:03,520 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-12 06:09:03,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 06:09:03,700 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:09:03,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:09:03,700 INFO L85 PathProgramCache]: Analyzing trace with hash -957882069, now seen corresponding path program 1 times [2022-07-12 06:09:03,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:09:03,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870934713] [2022-07-12 06:09:03,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:09:03,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:09:03,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:03,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 06:09:03,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:03,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 06:09:03,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:03,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 06:09:03,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:03,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 06:09:03,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:03,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 06:09:03,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:03,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 06:09:03,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:03,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-12 06:09:03,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:03,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-12 06:09:03,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:03,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-12 06:09:03,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:03,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-12 06:09:03,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:03,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-12 06:09:03,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:03,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-12 06:09:03,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:03,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-12 06:09:03,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:03,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-12 06:09:03,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:03,776 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-07-12 06:09:03,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:09:03,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870934713] [2022-07-12 06:09:03,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870934713] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:09:03,777 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:09:03,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 06:09:03,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633754379] [2022-07-12 06:09:03,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:09:03,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 06:09:03,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:09:03,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 06:09:03,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-12 06:09:03,778 INFO L87 Difference]: Start difference. First operand 317 states and 487 transitions. Second operand has 8 states, 7 states have (on average 11.0) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-12 06:09:04,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:09:04,630 INFO L93 Difference]: Finished difference Result 665 states and 1026 transitions. [2022-07-12 06:09:04,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 06:09:04,631 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.0) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 121 [2022-07-12 06:09:04,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:09:04,633 INFO L225 Difference]: With dead ends: 665 [2022-07-12 06:09:04,633 INFO L226 Difference]: Without dead ends: 371 [2022-07-12 06:09:04,634 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2022-07-12 06:09:04,635 INFO L413 NwaCegarLoop]: 425 mSDtfsCounter, 694 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 1215 mSolverCounterSat, 222 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 711 SdHoareTripleChecker+Valid, 1075 SdHoareTripleChecker+Invalid, 1437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 222 IncrementalHoareTripleChecker+Valid, 1215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-12 06:09:04,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [711 Valid, 1075 Invalid, 1437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [222 Valid, 1215 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-12 06:09:04,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2022-07-12 06:09:04,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 317. [2022-07-12 06:09:04,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 243 states have (on average 1.5349794238683128) internal successors, (373), 248 states have internal predecessors, (373), 54 states have call successors, (54), 17 states have call predecessors, (54), 19 states have return successors, (59), 53 states have call predecessors, (59), 53 states have call successors, (59) [2022-07-12 06:09:04,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 486 transitions. [2022-07-12 06:09:04,652 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 486 transitions. Word has length 121 [2022-07-12 06:09:04,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:09:04,654 INFO L495 AbstractCegarLoop]: Abstraction has 317 states and 486 transitions. [2022-07-12 06:09:04,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.0) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-12 06:09:04,654 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 486 transitions. [2022-07-12 06:09:04,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-07-12 06:09:04,657 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:09:04,657 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-07-12 06:09:04,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-12 06:09:04,658 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:09:04,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:09:04,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1705612417, now seen corresponding path program 2 times [2022-07-12 06:09:04,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:09:04,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135683818] [2022-07-12 06:09:04,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:09:04,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:09:04,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:04,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 06:09:04,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:04,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 06:09:04,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:04,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 06:09:04,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:04,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 06:09:04,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:04,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 06:09:04,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:04,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 06:09:04,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:04,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 06:09:04,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:04,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 06:09:04,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:04,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 06:09:04,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:04,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-12 06:09:04,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:04,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-12 06:09:04,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:04,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-12 06:09:04,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:04,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-12 06:09:04,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:04,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 06:09:04,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:04,749 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-07-12 06:09:04,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:09:04,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135683818] [2022-07-12 06:09:04,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135683818] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:09:04,749 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:09:04,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 06:09:04,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227187313] [2022-07-12 06:09:04,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:09:04,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 06:09:04,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:09:04,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 06:09:04,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-12 06:09:04,751 INFO L87 Difference]: Start difference. First operand 317 states and 486 transitions. Second operand has 8 states, 7 states have (on average 11.142857142857142) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-12 06:09:05,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:09:05,571 INFO L93 Difference]: Finished difference Result 667 states and 1029 transitions. [2022-07-12 06:09:05,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 06:09:05,572 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.142857142857142) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 122 [2022-07-12 06:09:05,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:09:05,575 INFO L225 Difference]: With dead ends: 667 [2022-07-12 06:09:05,575 INFO L226 Difference]: Without dead ends: 373 [2022-07-12 06:09:05,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2022-07-12 06:09:05,577 INFO L413 NwaCegarLoop]: 426 mSDtfsCounter, 690 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 1228 mSolverCounterSat, 220 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 707 SdHoareTripleChecker+Valid, 1076 SdHoareTripleChecker+Invalid, 1448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 220 IncrementalHoareTripleChecker+Valid, 1228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-12 06:09:05,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [707 Valid, 1076 Invalid, 1448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [220 Valid, 1228 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-12 06:09:05,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2022-07-12 06:09:05,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 319. [2022-07-12 06:09:05,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 244 states have (on average 1.5327868852459017) internal successors, (374), 250 states have internal predecessors, (374), 54 states have call successors, (54), 17 states have call predecessors, (54), 20 states have return successors, (61), 53 states have call predecessors, (61), 53 states have call successors, (61) [2022-07-12 06:09:05,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 489 transitions. [2022-07-12 06:09:05,598 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 489 transitions. Word has length 122 [2022-07-12 06:09:05,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:09:05,598 INFO L495 AbstractCegarLoop]: Abstraction has 319 states and 489 transitions. [2022-07-12 06:09:05,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.142857142857142) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-12 06:09:05,598 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 489 transitions. [2022-07-12 06:09:05,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-07-12 06:09:05,600 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:09:05,601 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 06:09:05,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-12 06:09:05,601 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:09:05,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:09:05,602 INFO L85 PathProgramCache]: Analyzing trace with hash -943611344, now seen corresponding path program 1 times [2022-07-12 06:09:05,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:09:05,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560895697] [2022-07-12 06:09:05,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:09:05,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:09:05,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:05,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 06:09:05,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:05,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 06:09:05,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:05,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 06:09:05,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:05,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 06:09:05,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:05,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 06:09:05,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:05,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-12 06:09:05,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:05,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-12 06:09:05,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:05,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-12 06:09:05,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:05,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-12 06:09:05,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:05,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-12 06:09:05,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:05,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-12 06:09:05,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:05,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-12 06:09:05,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:05,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-12 06:09:05,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:05,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-12 06:09:05,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:05,721 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-07-12 06:09:05,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:09:05,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560895697] [2022-07-12 06:09:05,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560895697] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:09:05,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:09:05,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-12 06:09:05,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089348398] [2022-07-12 06:09:05,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:09:05,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-12 06:09:05,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:09:05,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-12 06:09:05,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-07-12 06:09:05,723 INFO L87 Difference]: Start difference. First operand 319 states and 489 transitions. Second operand has 11 states, 10 states have (on average 8.2) internal successors, (82), 8 states have internal predecessors, (82), 4 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2022-07-12 06:09:07,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:09:07,099 INFO L93 Difference]: Finished difference Result 665 states and 1024 transitions. [2022-07-12 06:09:07,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-12 06:09:07,104 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.2) internal successors, (82), 8 states have internal predecessors, (82), 4 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 123 [2022-07-12 06:09:07,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:09:07,107 INFO L225 Difference]: With dead ends: 665 [2022-07-12 06:09:07,107 INFO L226 Difference]: Without dead ends: 373 [2022-07-12 06:09:07,109 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2022-07-12 06:09:07,109 INFO L413 NwaCegarLoop]: 412 mSDtfsCounter, 796 mSDsluCounter, 944 mSDsCounter, 0 mSdLazyCounter, 2259 mSolverCounterSat, 270 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 796 SdHoareTripleChecker+Valid, 1356 SdHoareTripleChecker+Invalid, 2529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 270 IncrementalHoareTripleChecker+Valid, 2259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-12 06:09:07,110 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [796 Valid, 1356 Invalid, 2529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [270 Valid, 2259 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-12 06:09:07,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2022-07-12 06:09:07,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 319. [2022-07-12 06:09:07,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 244 states have (on average 1.5327868852459017) internal successors, (374), 250 states have internal predecessors, (374), 54 states have call successors, (54), 17 states have call predecessors, (54), 20 states have return successors, (60), 53 states have call predecessors, (60), 53 states have call successors, (60) [2022-07-12 06:09:07,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 488 transitions. [2022-07-12 06:09:07,139 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 488 transitions. Word has length 123 [2022-07-12 06:09:07,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:09:07,139 INFO L495 AbstractCegarLoop]: Abstraction has 319 states and 488 transitions. [2022-07-12 06:09:07,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.2) internal successors, (82), 8 states have internal predecessors, (82), 4 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2022-07-12 06:09:07,140 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 488 transitions. [2022-07-12 06:09:07,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-07-12 06:09:07,156 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:09:07,156 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-07-12 06:09:07,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-12 06:09:07,156 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:09:07,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:09:07,157 INFO L85 PathProgramCache]: Analyzing trace with hash 334111285, now seen corresponding path program 2 times [2022-07-12 06:09:07,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:09:07,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374884761] [2022-07-12 06:09:07,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:09:07,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:09:07,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:07,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 06:09:07,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:07,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 06:09:07,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:07,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 06:09:07,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:07,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 06:09:07,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:07,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 06:09:07,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:07,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-12 06:09:07,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:07,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-12 06:09:07,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:07,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-12 06:09:07,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:07,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-12 06:09:07,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:07,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-12 06:09:07,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:07,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-12 06:09:07,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:07,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 06:09:07,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:07,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-12 06:09:07,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:07,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-12 06:09:07,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:07,316 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-07-12 06:09:07,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:09:07,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374884761] [2022-07-12 06:09:07,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374884761] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:09:07,317 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:09:07,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-12 06:09:07,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107627638] [2022-07-12 06:09:07,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:09:07,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-12 06:09:07,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:09:07,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-12 06:09:07,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-07-12 06:09:07,319 INFO L87 Difference]: Start difference. First operand 319 states and 488 transitions. Second operand has 11 states, 10 states have (on average 8.3) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2022-07-12 06:09:08,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:09:08,701 INFO L93 Difference]: Finished difference Result 667 states and 1030 transitions. [2022-07-12 06:09:08,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-12 06:09:08,701 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.3) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 124 [2022-07-12 06:09:08,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:09:08,706 INFO L225 Difference]: With dead ends: 667 [2022-07-12 06:09:08,715 INFO L226 Difference]: Without dead ends: 375 [2022-07-12 06:09:08,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2022-07-12 06:09:08,719 INFO L413 NwaCegarLoop]: 413 mSDtfsCounter, 792 mSDsluCounter, 944 mSDsCounter, 0 mSdLazyCounter, 2290 mSolverCounterSat, 266 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 792 SdHoareTripleChecker+Valid, 1357 SdHoareTripleChecker+Invalid, 2556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 266 IncrementalHoareTripleChecker+Valid, 2290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-12 06:09:08,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [792 Valid, 1357 Invalid, 2556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [266 Valid, 2290 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-12 06:09:08,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2022-07-12 06:09:08,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 321. [2022-07-12 06:09:08,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 245 states have (on average 1.530612244897959) internal successors, (375), 252 states have internal predecessors, (375), 54 states have call successors, (54), 17 states have call predecessors, (54), 21 states have return successors, (65), 53 states have call predecessors, (65), 53 states have call successors, (65) [2022-07-12 06:09:08,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 494 transitions. [2022-07-12 06:09:08,743 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 494 transitions. Word has length 124 [2022-07-12 06:09:08,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:09:08,744 INFO L495 AbstractCegarLoop]: Abstraction has 321 states and 494 transitions. [2022-07-12 06:09:08,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.3) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2022-07-12 06:09:08,744 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 494 transitions. [2022-07-12 06:09:08,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-07-12 06:09:08,746 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:09:08,746 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 06:09:08,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-12 06:09:08,747 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:09:08,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:09:08,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1355788075, now seen corresponding path program 1 times [2022-07-12 06:09:08,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:09:08,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86528971] [2022-07-12 06:09:08,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:09:08,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:09:08,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:08,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 06:09:08,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:08,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 06:09:08,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:08,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 06:09:08,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:08,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 06:09:08,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:08,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 06:09:08,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:08,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-12 06:09:08,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:08,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-12 06:09:08,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:08,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-12 06:09:08,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:08,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-12 06:09:08,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:08,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 06:09:08,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:08,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 06:09:08,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:08,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-12 06:09:08,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:08,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-12 06:09:08,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:08,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-12 06:09:08,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:08,867 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-07-12 06:09:08,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:09:08,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86528971] [2022-07-12 06:09:08,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86528971] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 06:09:08,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1308183536] [2022-07-12 06:09:08,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:09:08,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 06:09:08,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 06:09:08,870 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 06:09:08,932 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-12 06:09:09,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:09,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 1053 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 06:09:09,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 06:09:09,168 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-07-12 06:09:09,168 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 06:09:09,225 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-07-12 06:09:09,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1308183536] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 06:09:09,226 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-12 06:09:09,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 10 [2022-07-12 06:09:09,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007410980] [2022-07-12 06:09:09,226 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-12 06:09:09,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-12 06:09:09,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:09:09,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-12 06:09:09,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-07-12 06:09:09,227 INFO L87 Difference]: Start difference. First operand 321 states and 494 transitions. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 7 states have internal predecessors, (114), 2 states have call successors, (32), 5 states have call predecessors, (32), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-12 06:09:10,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:09:10,548 INFO L93 Difference]: Finished difference Result 821 states and 1328 transitions. [2022-07-12 06:09:10,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-12 06:09:10,549 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 7 states have internal predecessors, (114), 2 states have call successors, (32), 5 states have call predecessors, (32), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 125 [2022-07-12 06:09:10,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:09:10,553 INFO L225 Difference]: With dead ends: 821 [2022-07-12 06:09:10,553 INFO L226 Difference]: Without dead ends: 702 [2022-07-12 06:09:10,556 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2022-07-12 06:09:10,556 INFO L413 NwaCegarLoop]: 516 mSDtfsCounter, 974 mSDsluCounter, 989 mSDsCounter, 0 mSdLazyCounter, 1517 mSolverCounterSat, 331 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1019 SdHoareTripleChecker+Valid, 1505 SdHoareTripleChecker+Invalid, 1848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 331 IncrementalHoareTripleChecker+Valid, 1517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-12 06:09:10,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1019 Valid, 1505 Invalid, 1848 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [331 Valid, 1517 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-12 06:09:10,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2022-07-12 06:09:10,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 624. [2022-07-12 06:09:10,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 624 states, 484 states have (on average 1.5971074380165289) internal successors, (773), 491 states have internal predecessors, (773), 118 states have call successors, (118), 17 states have call predecessors, (118), 21 states have return successors, (139), 117 states have call predecessors, (139), 117 states have call successors, (139) [2022-07-12 06:09:10,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 624 states to 624 states and 1030 transitions. [2022-07-12 06:09:10,593 INFO L78 Accepts]: Start accepts. Automaton has 624 states and 1030 transitions. Word has length 125 [2022-07-12 06:09:10,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:09:10,593 INFO L495 AbstractCegarLoop]: Abstraction has 624 states and 1030 transitions. [2022-07-12 06:09:10,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 7 states have internal predecessors, (114), 2 states have call successors, (32), 5 states have call predecessors, (32), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-12 06:09:10,594 INFO L276 IsEmpty]: Start isEmpty. Operand 624 states and 1030 transitions. [2022-07-12 06:09:10,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-07-12 06:09:10,597 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:09:10,598 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 06:09:10,625 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-12 06:09:10,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 06:09:10,816 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:09:10,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:09:10,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1248123790, now seen corresponding path program 1 times [2022-07-12 06:09:10,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:09:10,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652008662] [2022-07-12 06:09:10,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:09:10,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:09:10,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:10,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 06:09:10,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:10,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 06:09:10,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:10,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 06:09:10,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:10,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 06:09:10,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:10,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 06:09:10,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:10,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-12 06:09:10,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:10,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-12 06:09:10,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:10,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-12 06:09:10,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:10,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 06:09:10,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:10,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-12 06:09:10,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:10,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 06:09:10,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:10,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-12 06:09:10,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:10,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-12 06:09:10,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:10,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-12 06:09:10,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:10,922 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-07-12 06:09:10,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:09:10,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652008662] [2022-07-12 06:09:10,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652008662] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:09:10,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:09:10,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 06:09:10,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987581666] [2022-07-12 06:09:10,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:09:10,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 06:09:10,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:09:10,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 06:09:10,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 06:09:10,924 INFO L87 Difference]: Start difference. First operand 624 states and 1030 transitions. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 06:09:11,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:09:11,687 INFO L93 Difference]: Finished difference Result 1542 states and 2607 transitions. [2022-07-12 06:09:11,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 06:09:11,687 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 131 [2022-07-12 06:09:11,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:09:11,694 INFO L225 Difference]: With dead ends: 1542 [2022-07-12 06:09:11,694 INFO L226 Difference]: Without dead ends: 986 [2022-07-12 06:09:11,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-07-12 06:09:11,698 INFO L413 NwaCegarLoop]: 462 mSDtfsCounter, 683 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 612 mSolverCounterSat, 250 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 698 SdHoareTripleChecker+Valid, 956 SdHoareTripleChecker+Invalid, 862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 250 IncrementalHoareTripleChecker+Valid, 612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-12 06:09:11,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [698 Valid, 956 Invalid, 862 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [250 Valid, 612 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-12 06:09:11,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 986 states. [2022-07-12 06:09:11,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 986 to 924. [2022-07-12 06:09:11,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 924 states, 720 states have (on average 1.6083333333333334) internal successors, (1158), 727 states have internal predecessors, (1158), 182 states have call successors, (182), 17 states have call predecessors, (182), 21 states have return successors, (213), 181 states have call predecessors, (213), 181 states have call successors, (213) [2022-07-12 06:09:11,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 924 states to 924 states and 1553 transitions. [2022-07-12 06:09:11,788 INFO L78 Accepts]: Start accepts. Automaton has 924 states and 1553 transitions. Word has length 131 [2022-07-12 06:09:11,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:09:11,789 INFO L495 AbstractCegarLoop]: Abstraction has 924 states and 1553 transitions. [2022-07-12 06:09:11,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 06:09:11,789 INFO L276 IsEmpty]: Start isEmpty. Operand 924 states and 1553 transitions. [2022-07-12 06:09:11,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-07-12 06:09:11,794 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:09:11,795 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 06:09:11,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-12 06:09:11,795 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:09:11,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:09:11,796 INFO L85 PathProgramCache]: Analyzing trace with hash -591151818, now seen corresponding path program 1 times [2022-07-12 06:09:11,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:09:11,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899593004] [2022-07-12 06:09:11,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:09:11,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:09:11,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:11,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 06:09:11,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:11,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 06:09:11,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:11,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 06:09:11,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:11,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 06:09:11,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:11,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 06:09:11,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:11,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-12 06:09:11,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:11,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-12 06:09:11,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:11,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-12 06:09:11,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:11,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-12 06:09:11,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:11,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 06:09:11,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:11,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-12 06:09:11,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:11,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-12 06:09:11,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:11,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-12 06:09:11,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:11,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-12 06:09:11,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:11,881 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-07-12 06:09:11,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:09:11,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899593004] [2022-07-12 06:09:11,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899593004] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:09:11,881 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:09:11,882 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 06:09:11,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088208760] [2022-07-12 06:09:11,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:09:11,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 06:09:11,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:09:11,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 06:09:11,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 06:09:11,883 INFO L87 Difference]: Start difference. First operand 924 states and 1553 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 06:09:12,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:09:12,665 INFO L93 Difference]: Finished difference Result 2257 states and 3852 transitions. [2022-07-12 06:09:12,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 06:09:12,666 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 132 [2022-07-12 06:09:12,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:09:12,674 INFO L225 Difference]: With dead ends: 2257 [2022-07-12 06:09:12,674 INFO L226 Difference]: Without dead ends: 1454 [2022-07-12 06:09:12,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-07-12 06:09:12,677 INFO L413 NwaCegarLoop]: 451 mSDtfsCounter, 681 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 258 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 696 SdHoareTripleChecker+Valid, 929 SdHoareTripleChecker+Invalid, 852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 258 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-12 06:09:12,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [696 Valid, 929 Invalid, 852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [258 Valid, 594 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-12 06:09:12,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1454 states. [2022-07-12 06:09:12,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1454 to 1392. [2022-07-12 06:09:12,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1392 states, 1093 states have (on average 1.614821591948765) internal successors, (1765), 1100 states have internal predecessors, (1765), 277 states have call successors, (277), 17 states have call predecessors, (277), 21 states have return successors, (308), 276 states have call predecessors, (308), 276 states have call successors, (308) [2022-07-12 06:09:12,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1392 states to 1392 states and 2350 transitions. [2022-07-12 06:09:12,756 INFO L78 Accepts]: Start accepts. Automaton has 1392 states and 2350 transitions. Word has length 132 [2022-07-12 06:09:12,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:09:12,756 INFO L495 AbstractCegarLoop]: Abstraction has 1392 states and 2350 transitions. [2022-07-12 06:09:12,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 06:09:12,757 INFO L276 IsEmpty]: Start isEmpty. Operand 1392 states and 2350 transitions. [2022-07-12 06:09:12,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-07-12 06:09:12,762 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:09:12,763 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 06:09:12,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-12 06:09:12,763 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:09:12,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:09:12,763 INFO L85 PathProgramCache]: Analyzing trace with hash -1575438508, now seen corresponding path program 1 times [2022-07-12 06:09:12,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:09:12,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817183149] [2022-07-12 06:09:12,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:09:12,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:09:12,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:12,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 06:09:12,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:12,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 06:09:12,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:12,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 06:09:12,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:12,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 06:09:12,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:12,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 06:09:12,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:12,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-12 06:09:12,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:12,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 06:09:12,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:12,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 06:09:12,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:12,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-12 06:09:12,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:12,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-12 06:09:12,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:12,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-12 06:09:12,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:12,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-12 06:09:12,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:12,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-12 06:09:12,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:12,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-12 06:09:12,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:12,841 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-07-12 06:09:12,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:09:12,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817183149] [2022-07-12 06:09:12,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817183149] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:09:12,841 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:09:12,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 06:09:12,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980358038] [2022-07-12 06:09:12,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:09:12,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 06:09:12,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:09:12,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 06:09:12,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 06:09:12,842 INFO L87 Difference]: Start difference. First operand 1392 states and 2350 transitions. Second operand has 6 states, 6 states have (on average 14.5) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 06:09:13,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:09:13,608 INFO L93 Difference]: Finished difference Result 3304 states and 5693 transitions. [2022-07-12 06:09:13,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 06:09:13,609 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 133 [2022-07-12 06:09:13,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:09:13,626 INFO L225 Difference]: With dead ends: 3304 [2022-07-12 06:09:13,626 INFO L226 Difference]: Without dead ends: 2158 [2022-07-12 06:09:13,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-07-12 06:09:13,635 INFO L413 NwaCegarLoop]: 452 mSDtfsCounter, 679 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 600 mSolverCounterSat, 250 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 694 SdHoareTripleChecker+Valid, 929 SdHoareTripleChecker+Invalid, 850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 250 IncrementalHoareTripleChecker+Valid, 600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-12 06:09:13,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [694 Valid, 929 Invalid, 850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [250 Valid, 600 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-12 06:09:13,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2158 states. [2022-07-12 06:09:13,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2158 to 2096. [2022-07-12 06:09:13,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2096 states, 1674 states have (on average 1.6200716845878136) internal successors, (2712), 1681 states have internal predecessors, (2712), 400 states have call successors, (400), 17 states have call predecessors, (400), 21 states have return successors, (447), 399 states have call predecessors, (447), 399 states have call successors, (447) [2022-07-12 06:09:13,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2096 states to 2096 states and 3559 transitions. [2022-07-12 06:09:13,784 INFO L78 Accepts]: Start accepts. Automaton has 2096 states and 3559 transitions. Word has length 133 [2022-07-12 06:09:13,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:09:13,785 INFO L495 AbstractCegarLoop]: Abstraction has 2096 states and 3559 transitions. [2022-07-12 06:09:13,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 06:09:13,785 INFO L276 IsEmpty]: Start isEmpty. Operand 2096 states and 3559 transitions. [2022-07-12 06:09:13,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-07-12 06:09:13,797 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:09:13,797 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 06:09:13,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-12 06:09:13,797 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:09:13,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:09:13,798 INFO L85 PathProgramCache]: Analyzing trace with hash -1009111593, now seen corresponding path program 1 times [2022-07-12 06:09:13,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:09:13,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210691862] [2022-07-12 06:09:13,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:09:13,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:09:13,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:13,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 06:09:13,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:13,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 06:09:13,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:13,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 06:09:13,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:13,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 06:09:13,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:13,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 06:09:13,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:13,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-12 06:09:13,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:13,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-12 06:09:13,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:13,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-12 06:09:13,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:13,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-12 06:09:13,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:13,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-12 06:09:13,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:13,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-12 06:09:13,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:13,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 06:09:13,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:13,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-12 06:09:13,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:13,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-12 06:09:13,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:13,881 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-07-12 06:09:13,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:09:13,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210691862] [2022-07-12 06:09:13,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210691862] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:09:13,881 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:09:13,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 06:09:13,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160337685] [2022-07-12 06:09:13,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:09:13,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 06:09:13,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:09:13,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 06:09:13,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 06:09:13,883 INFO L87 Difference]: Start difference. First operand 2096 states and 3559 transitions. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 06:09:14,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:09:14,659 INFO L93 Difference]: Finished difference Result 4923 states and 8547 transitions. [2022-07-12 06:09:14,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 06:09:14,660 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 134 [2022-07-12 06:09:14,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:09:14,681 INFO L225 Difference]: With dead ends: 4923 [2022-07-12 06:09:14,681 INFO L226 Difference]: Without dead ends: 3277 [2022-07-12 06:09:14,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-07-12 06:09:14,689 INFO L413 NwaCegarLoop]: 450 mSDtfsCounter, 677 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 252 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 692 SdHoareTripleChecker+Valid, 927 SdHoareTripleChecker+Invalid, 842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 252 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-12 06:09:14,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [692 Valid, 927 Invalid, 842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [252 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-12 06:09:14,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3277 states. [2022-07-12 06:09:14,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3277 to 3215. [2022-07-12 06:09:14,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3215 states, 2614 states have (on average 1.6231828615149198) internal successors, (4243), 2621 states have internal predecessors, (4243), 579 states have call successors, (579), 17 states have call predecessors, (579), 21 states have return successors, (652), 578 states have call predecessors, (652), 578 states have call successors, (652) [2022-07-12 06:09:14,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3215 states to 3215 states and 5474 transitions. [2022-07-12 06:09:14,904 INFO L78 Accepts]: Start accepts. Automaton has 3215 states and 5474 transitions. Word has length 134 [2022-07-12 06:09:14,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:09:14,904 INFO L495 AbstractCegarLoop]: Abstraction has 3215 states and 5474 transitions. [2022-07-12 06:09:14,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 06:09:14,905 INFO L276 IsEmpty]: Start isEmpty. Operand 3215 states and 5474 transitions. [2022-07-12 06:09:14,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-07-12 06:09:14,916 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:09:14,916 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 06:09:14,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-12 06:09:14,916 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:09:14,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:09:14,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1845738800, now seen corresponding path program 1 times [2022-07-12 06:09:14,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:09:14,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926397835] [2022-07-12 06:09:14,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:09:14,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:09:14,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:14,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 06:09:14,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:14,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 06:09:14,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:14,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 06:09:14,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:14,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 06:09:14,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:14,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 06:09:14,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:14,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-12 06:09:14,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:14,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-12 06:09:14,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:14,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 06:09:14,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:14,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-12 06:09:14,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:14,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-12 06:09:14,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:14,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-12 06:09:14,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:14,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-12 06:09:14,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:14,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-12 06:09:14,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:14,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-12 06:09:14,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:14,989 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-07-12 06:09:14,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:09:14,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926397835] [2022-07-12 06:09:14,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926397835] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:09:14,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:09:14,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 06:09:14,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782211446] [2022-07-12 06:09:14,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:09:14,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 06:09:14,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:09:14,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 06:09:14,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 06:09:14,991 INFO L87 Difference]: Start difference. First operand 3215 states and 5474 transitions. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 06:09:15,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:09:15,955 INFO L93 Difference]: Finished difference Result 7841 states and 13646 transitions. [2022-07-12 06:09:15,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 06:09:15,956 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 135 [2022-07-12 06:09:15,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:09:15,985 INFO L225 Difference]: With dead ends: 7841 [2022-07-12 06:09:15,986 INFO L226 Difference]: Without dead ends: 5308 [2022-07-12 06:09:16,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-07-12 06:09:16,001 INFO L413 NwaCegarLoop]: 461 mSDtfsCounter, 675 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 610 mSolverCounterSat, 255 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 690 SdHoareTripleChecker+Valid, 954 SdHoareTripleChecker+Invalid, 865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 255 IncrementalHoareTripleChecker+Valid, 610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-12 06:09:16,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [690 Valid, 954 Invalid, 865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [255 Valid, 610 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-12 06:09:16,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5308 states. [2022-07-12 06:09:16,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5308 to 5246. [2022-07-12 06:09:16,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5246 states, 4269 states have (on average 1.6151323494963692) internal successors, (6895), 4276 states have internal predecessors, (6895), 955 states have call successors, (955), 17 states have call predecessors, (955), 21 states have return successors, (1072), 954 states have call predecessors, (1072), 954 states have call successors, (1072) [2022-07-12 06:09:16,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5246 states to 5246 states and 8922 transitions. [2022-07-12 06:09:16,389 INFO L78 Accepts]: Start accepts. Automaton has 5246 states and 8922 transitions. Word has length 135 [2022-07-12 06:09:16,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:09:16,390 INFO L495 AbstractCegarLoop]: Abstraction has 5246 states and 8922 transitions. [2022-07-12 06:09:16,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 06:09:16,391 INFO L276 IsEmpty]: Start isEmpty. Operand 5246 states and 8922 transitions. [2022-07-12 06:09:16,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-07-12 06:09:16,414 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:09:16,414 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 06:09:16,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-12 06:09:16,415 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:09:16,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:09:16,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1080672677, now seen corresponding path program 1 times [2022-07-12 06:09:16,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:09:16,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523421041] [2022-07-12 06:09:16,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:09:16,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:09:16,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:16,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 06:09:16,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:16,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 06:09:16,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:16,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 06:09:16,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:16,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 06:09:16,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:16,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 06:09:16,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:16,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-12 06:09:16,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:16,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-12 06:09:16,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:16,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-12 06:09:16,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:16,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-12 06:09:16,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:16,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-12 06:09:16,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:16,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-12 06:09:16,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:16,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-12 06:09:16,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:16,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-12 06:09:16,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:16,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-12 06:09:16,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:16,503 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-07-12 06:09:16,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:09:16,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523421041] [2022-07-12 06:09:16,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523421041] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:09:16,503 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:09:16,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 06:09:16,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010162321] [2022-07-12 06:09:16,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:09:16,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 06:09:16,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:09:16,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 06:09:16,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 06:09:16,504 INFO L87 Difference]: Start difference. First operand 5246 states and 8922 transitions. Second operand has 6 states, 6 states have (on average 15.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 06:09:17,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:09:17,485 INFO L93 Difference]: Finished difference Result 12983 states and 22555 transitions. [2022-07-12 06:09:17,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 06:09:17,485 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 136 [2022-07-12 06:09:17,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:09:17,543 INFO L225 Difference]: With dead ends: 12983 [2022-07-12 06:09:17,543 INFO L226 Difference]: Without dead ends: 8796 [2022-07-12 06:09:17,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-07-12 06:09:17,564 INFO L413 NwaCegarLoop]: 452 mSDtfsCounter, 673 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 598 mSolverCounterSat, 258 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 688 SdHoareTripleChecker+Valid, 930 SdHoareTripleChecker+Invalid, 856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 258 IncrementalHoareTripleChecker+Valid, 598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-12 06:09:17,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [688 Valid, 930 Invalid, 856 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [258 Valid, 598 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-12 06:09:17,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8796 states. [2022-07-12 06:09:18,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8796 to 8734. [2022-07-12 06:09:18,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8734 states, 7151 states have (on average 1.612222066843798) internal successors, (11529), 7158 states have internal predecessors, (11529), 1561 states have call successors, (1561), 17 states have call predecessors, (1561), 21 states have return successors, (1756), 1560 states have call predecessors, (1756), 1560 states have call successors, (1756) [2022-07-12 06:09:18,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8734 states to 8734 states and 14846 transitions. [2022-07-12 06:09:18,118 INFO L78 Accepts]: Start accepts. Automaton has 8734 states and 14846 transitions. Word has length 136 [2022-07-12 06:09:18,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:09:18,118 INFO L495 AbstractCegarLoop]: Abstraction has 8734 states and 14846 transitions. [2022-07-12 06:09:18,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 06:09:18,119 INFO L276 IsEmpty]: Start isEmpty. Operand 8734 states and 14846 transitions. [2022-07-12 06:09:18,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-07-12 06:09:18,151 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:09:18,151 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 06:09:18,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-12 06:09:18,152 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:09:18,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:09:18,152 INFO L85 PathProgramCache]: Analyzing trace with hash 53915538, now seen corresponding path program 1 times [2022-07-12 06:09:18,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:09:18,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61098499] [2022-07-12 06:09:18,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:09:18,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:09:18,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:18,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 06:09:18,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:18,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 06:09:18,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:18,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 06:09:18,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:18,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 06:09:18,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:18,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 06:09:18,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:18,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-12 06:09:18,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:18,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-12 06:09:18,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:18,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-12 06:09:18,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:18,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-12 06:09:18,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:18,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-12 06:09:18,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:18,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-12 06:09:18,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:18,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-12 06:09:18,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:18,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-12 06:09:18,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:18,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-12 06:09:18,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:18,240 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-07-12 06:09:18,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:09:18,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61098499] [2022-07-12 06:09:18,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61098499] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:09:18,241 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:09:18,241 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 06:09:18,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361080113] [2022-07-12 06:09:18,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:09:18,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 06:09:18,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:09:18,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 06:09:18,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 06:09:18,242 INFO L87 Difference]: Start difference. First operand 8734 states and 14846 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 06:09:19,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:09:19,515 INFO L93 Difference]: Finished difference Result 22642 states and 39261 transitions. [2022-07-12 06:09:19,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 06:09:19,516 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 137 [2022-07-12 06:09:19,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:09:19,598 INFO L225 Difference]: With dead ends: 22642 [2022-07-12 06:09:19,599 INFO L226 Difference]: Without dead ends: 15389 [2022-07-12 06:09:19,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-07-12 06:09:19,637 INFO L413 NwaCegarLoop]: 470 mSDtfsCounter, 671 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 612 mSolverCounterSat, 247 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 686 SdHoareTripleChecker+Valid, 986 SdHoareTripleChecker+Invalid, 859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 247 IncrementalHoareTripleChecker+Valid, 612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-12 06:09:19,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [686 Valid, 986 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [247 Valid, 612 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-12 06:09:19,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15389 states. [2022-07-12 06:09:20,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15389 to 15327. [2022-07-12 06:09:20,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15327 states, 12541 states have (on average 1.6023443106610318) internal successors, (20095), 12548 states have internal predecessors, (20095), 2764 states have call successors, (2764), 17 states have call predecessors, (2764), 21 states have return successors, (3103), 2763 states have call predecessors, (3103), 2763 states have call successors, (3103) [2022-07-12 06:09:20,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15327 states to 15327 states and 25962 transitions. [2022-07-12 06:09:20,547 INFO L78 Accepts]: Start accepts. Automaton has 15327 states and 25962 transitions. Word has length 137 [2022-07-12 06:09:20,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:09:20,547 INFO L495 AbstractCegarLoop]: Abstraction has 15327 states and 25962 transitions. [2022-07-12 06:09:20,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 06:09:20,548 INFO L276 IsEmpty]: Start isEmpty. Operand 15327 states and 25962 transitions. [2022-07-12 06:09:20,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-07-12 06:09:20,583 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:09:20,584 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 06:09:20,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-12 06:09:20,584 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:09:20,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:09:20,585 INFO L85 PathProgramCache]: Analyzing trace with hash -1481692516, now seen corresponding path program 1 times [2022-07-12 06:09:20,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:09:20,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128439436] [2022-07-12 06:09:20,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:09:20,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:09:20,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:20,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 06:09:20,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:20,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 06:09:20,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:20,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 06:09:20,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:20,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 06:09:20,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:20,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 06:09:20,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:20,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-12 06:09:20,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:20,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 06:09:20,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:20,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-12 06:09:20,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:20,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 06:09:20,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:20,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 06:09:20,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:20,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-12 06:09:20,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:20,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-12 06:09:20,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:20,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-12 06:09:20,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:20,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-12 06:09:20,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:20,652 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-07-12 06:09:20,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:09:20,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128439436] [2022-07-12 06:09:20,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128439436] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:09:20,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:09:20,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 06:09:20,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885125333] [2022-07-12 06:09:20,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:09:20,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 06:09:20,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:09:20,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 06:09:20,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 06:09:20,655 INFO L87 Difference]: Start difference. First operand 15327 states and 25962 transitions. Second operand has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 06:09:22,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:09:22,447 INFO L93 Difference]: Finished difference Result 40598 states and 70244 transitions. [2022-07-12 06:09:22,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 06:09:22,448 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 138 [2022-07-12 06:09:22,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:09:22,575 INFO L225 Difference]: With dead ends: 40598 [2022-07-12 06:09:22,576 INFO L226 Difference]: Without dead ends: 27359 [2022-07-12 06:09:22,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-07-12 06:09:22,630 INFO L413 NwaCegarLoop]: 454 mSDtfsCounter, 669 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 608 mSolverCounterSat, 256 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 684 SdHoareTripleChecker+Valid, 932 SdHoareTripleChecker+Invalid, 864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 256 IncrementalHoareTripleChecker+Valid, 608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-12 06:09:22,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [684 Valid, 932 Invalid, 864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [256 Valid, 608 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-12 06:09:22,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27359 states. [2022-07-12 06:09:24,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27359 to 27297. [2022-07-12 06:09:24,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27297 states, 22472 states have (on average 1.597677109291563) internal successors, (35903), 22479 states have internal predecessors, (35903), 4803 states have call successors, (4803), 17 states have call predecessors, (4803), 21 states have return successors, (5416), 4802 states have call predecessors, (5416), 4802 states have call successors, (5416) [2022-07-12 06:09:24,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27297 states to 27297 states and 46122 transitions. [2022-07-12 06:09:24,591 INFO L78 Accepts]: Start accepts. Automaton has 27297 states and 46122 transitions. Word has length 138 [2022-07-12 06:09:24,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:09:24,591 INFO L495 AbstractCegarLoop]: Abstraction has 27297 states and 46122 transitions. [2022-07-12 06:09:24,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 06:09:24,592 INFO L276 IsEmpty]: Start isEmpty. Operand 27297 states and 46122 transitions. [2022-07-12 06:09:24,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-07-12 06:09:24,642 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:09:24,642 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 06:09:24,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-12 06:09:24,643 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:09:24,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:09:24,643 INFO L85 PathProgramCache]: Analyzing trace with hash 808221876, now seen corresponding path program 1 times [2022-07-12 06:09:24,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:09:24,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834540215] [2022-07-12 06:09:24,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:09:24,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:09:24,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:24,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 06:09:24,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:24,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 06:09:24,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:24,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 06:09:24,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:24,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 06:09:24,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:24,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 06:09:24,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:24,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-12 06:09:24,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:24,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-12 06:09:24,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:24,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-12 06:09:24,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:24,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-12 06:09:24,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:24,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-12 06:09:24,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:24,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-12 06:09:24,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:24,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-12 06:09:24,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:24,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-12 06:09:24,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:24,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 06:09:24,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:24,771 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-07-12 06:09:24,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:09:24,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834540215] [2022-07-12 06:09:24,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834540215] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:09:24,771 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:09:24,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 06:09:24,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160238446] [2022-07-12 06:09:24,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:09:24,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 06:09:24,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:09:24,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 06:09:24,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 06:09:24,772 INFO L87 Difference]: Start difference. First operand 27297 states and 46122 transitions. Second operand has 6 states, 6 states have (on average 15.5) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 06:09:27,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:09:27,476 INFO L93 Difference]: Finished difference Result 74385 states and 127843 transitions. [2022-07-12 06:09:27,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 06:09:27,476 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 139 [2022-07-12 06:09:27,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:09:27,889 INFO L225 Difference]: With dead ends: 74385 [2022-07-12 06:09:27,890 INFO L226 Difference]: Without dead ends: 49908 [2022-07-12 06:09:27,967 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-07-12 06:09:27,968 INFO L413 NwaCegarLoop]: 459 mSDtfsCounter, 667 mSDsluCounter, 497 mSDsCounter, 0 mSdLazyCounter, 600 mSolverCounterSat, 253 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 682 SdHoareTripleChecker+Valid, 956 SdHoareTripleChecker+Invalid, 853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 253 IncrementalHoareTripleChecker+Valid, 600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-12 06:09:27,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [682 Valid, 956 Invalid, 853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [253 Valid, 600 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-12 06:09:28,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49908 states. [2022-07-12 06:09:30,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49908 to 49846. [2022-07-12 06:09:30,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49846 states, 41306 states have (on average 1.591633176778192) internal successors, (65744), 41313 states have internal predecessors, (65744), 8518 states have call successors, (8518), 17 states have call predecessors, (8518), 21 states have return successors, (9663), 8517 states have call predecessors, (9663), 8517 states have call successors, (9663) [2022-07-12 06:09:30,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49846 states to 49846 states and 83925 transitions. [2022-07-12 06:09:30,928 INFO L78 Accepts]: Start accepts. Automaton has 49846 states and 83925 transitions. Word has length 139 [2022-07-12 06:09:30,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:09:30,929 INFO L495 AbstractCegarLoop]: Abstraction has 49846 states and 83925 transitions. [2022-07-12 06:09:30,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 06:09:30,929 INFO L276 IsEmpty]: Start isEmpty. Operand 49846 states and 83925 transitions. [2022-07-12 06:09:30,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-07-12 06:09:30,987 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:09:30,987 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 06:09:30,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-12 06:09:30,987 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:09:30,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:09:30,988 INFO L85 PathProgramCache]: Analyzing trace with hash 1362912252, now seen corresponding path program 1 times [2022-07-12 06:09:30,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:09:30,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033310453] [2022-07-12 06:09:30,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:09:30,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:09:31,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:31,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 06:09:31,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:31,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 06:09:31,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:31,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 06:09:31,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:31,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 06:09:31,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:31,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 06:09:31,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:31,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-12 06:09:31,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:31,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-12 06:09:31,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:31,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-12 06:09:31,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:31,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-12 06:09:31,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:31,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-12 06:09:31,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:31,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-12 06:09:31,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:31,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-12 06:09:31,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:31,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-12 06:09:31,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:31,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-12 06:09:31,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:31,086 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-07-12 06:09:31,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:09:31,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033310453] [2022-07-12 06:09:31,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033310453] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:09:31,087 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:09:31,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 06:09:31,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393347319] [2022-07-12 06:09:31,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:09:31,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 06:09:31,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:09:31,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 06:09:31,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 06:09:31,089 INFO L87 Difference]: Start difference. First operand 49846 states and 83925 transitions. Second operand has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 06:09:35,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:09:35,466 INFO L93 Difference]: Finished difference Result 92871 states and 159974 transitions. [2022-07-12 06:09:35,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 06:09:35,467 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 140 [2022-07-12 06:09:35,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:09:36,131 INFO L225 Difference]: With dead ends: 92871 [2022-07-12 06:09:36,131 INFO L226 Difference]: Without dead ends: 92752 [2022-07-12 06:09:36,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-07-12 06:09:36,183 INFO L413 NwaCegarLoop]: 452 mSDtfsCounter, 665 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 600 mSolverCounterSat, 256 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 680 SdHoareTripleChecker+Valid, 930 SdHoareTripleChecker+Invalid, 856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 256 IncrementalHoareTripleChecker+Valid, 600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-12 06:09:36,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [680 Valid, 930 Invalid, 856 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [256 Valid, 600 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-12 06:09:36,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92752 states. [2022-07-12 06:09:40,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92752 to 92690. [2022-07-12 06:09:40,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92690 states, 77351 states have (on average 1.5840777753358068) internal successors, (122530), 77358 states have internal predecessors, (122530), 15317 states have call successors, (15317), 17 states have call predecessors, (15317), 21 states have return successors, (17508), 15316 states have call predecessors, (17508), 15316 states have call successors, (17508) [2022-07-12 06:09:41,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92690 states to 92690 states and 155355 transitions. [2022-07-12 06:09:41,548 INFO L78 Accepts]: Start accepts. Automaton has 92690 states and 155355 transitions. Word has length 140 [2022-07-12 06:09:41,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:09:41,549 INFO L495 AbstractCegarLoop]: Abstraction has 92690 states and 155355 transitions. [2022-07-12 06:09:41,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 06:09:41,549 INFO L276 IsEmpty]: Start isEmpty. Operand 92690 states and 155355 transitions. [2022-07-12 06:09:41,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-07-12 06:09:41,625 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:09:41,625 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 06:09:41,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-12 06:09:41,626 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:09:41,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:09:41,626 INFO L85 PathProgramCache]: Analyzing trace with hash -2017557517, now seen corresponding path program 1 times [2022-07-12 06:09:41,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:09:41,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620330561] [2022-07-12 06:09:41,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:09:41,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:09:41,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:41,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 06:09:41,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:41,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 06:09:41,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:41,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 06:09:41,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:41,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 06:09:41,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:41,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 06:09:41,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:41,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-12 06:09:41,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:41,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-12 06:09:41,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:41,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-12 06:09:41,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:41,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-12 06:09:41,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:41,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-12 06:09:41,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:41,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 06:09:41,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:41,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-12 06:09:41,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:41,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-12 06:09:41,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:41,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-12 06:09:41,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:41,792 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-07-12 06:09:41,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:09:41,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620330561] [2022-07-12 06:09:41,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620330561] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 06:09:41,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1444293905] [2022-07-12 06:09:41,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:09:41,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 06:09:41,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 06:09:41,794 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 06:09:41,798 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-12 06:09:42,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:09:42,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 1122 conjuncts, 17 conjunts are in the unsatisfiable core [2022-07-12 06:09:42,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 06:09:42,381 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-12 06:09:42,382 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 06:09:42,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1444293905] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:09:42,382 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 06:09:42,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [14] total 23 [2022-07-12 06:09:42,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235179706] [2022-07-12 06:09:42,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:09:42,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-12 06:09:42,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:09:42,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-12 06:09:42,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2022-07-12 06:09:42,385 INFO L87 Difference]: Start difference. First operand 92690 states and 155355 transitions. Second operand has 11 states, 11 states have (on average 9.545454545454545) internal successors, (105), 8 states have internal predecessors, (105), 5 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2022-07-12 06:09:50,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:09:50,089 INFO L93 Difference]: Finished difference Result 184760 states and 315156 transitions. [2022-07-12 06:09:50,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-12 06:09:50,090 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.545454545454545) internal successors, (105), 8 states have internal predecessors, (105), 5 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) Word has length 141 [2022-07-12 06:09:50,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:09:51,164 INFO L225 Difference]: With dead ends: 184760 [2022-07-12 06:09:51,164 INFO L226 Difference]: Without dead ends: 184649 [2022-07-12 06:09:51,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=144, Invalid=786, Unknown=0, NotChecked=0, Total=930 [2022-07-12 06:09:51,258 INFO L413 NwaCegarLoop]: 555 mSDtfsCounter, 783 mSDsluCounter, 3407 mSDsCounter, 0 mSdLazyCounter, 912 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 785 SdHoareTripleChecker+Valid, 3962 SdHoareTripleChecker+Invalid, 1064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 912 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-12 06:09:51,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [785 Valid, 3962 Invalid, 1064 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 912 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-12 06:09:51,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184649 states. [2022-07-12 06:10:01,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184649 to 184578. [2022-07-12 06:10:01,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184578 states, 154107 states have (on average 1.5850091170420553) internal successors, (244261), 154009 states have internal predecessors, (244261), 30421 states have call successors, (30421), 44 states have call predecessors, (30421), 49 states have return successors, (38070), 30530 states have call predecessors, (38070), 30418 states have call successors, (38070) [2022-07-12 06:10:02,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184578 states to 184578 states and 312752 transitions. [2022-07-12 06:10:02,706 INFO L78 Accepts]: Start accepts. Automaton has 184578 states and 312752 transitions. Word has length 141 [2022-07-12 06:10:02,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:10:02,707 INFO L495 AbstractCegarLoop]: Abstraction has 184578 states and 312752 transitions. [2022-07-12 06:10:02,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.545454545454545) internal successors, (105), 8 states have internal predecessors, (105), 5 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2022-07-12 06:10:02,707 INFO L276 IsEmpty]: Start isEmpty. Operand 184578 states and 312752 transitions. [2022-07-12 06:10:02,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-07-12 06:10:02,884 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:10:02,884 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 06:10:02,912 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-12 06:10:03,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 06:10:03,087 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:10:03,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:10:03,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1134632860, now seen corresponding path program 1 times [2022-07-12 06:10:03,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:10:03,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532930768] [2022-07-12 06:10:03,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:10:03,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:10:03,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:10:03,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 06:10:03,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:10:03,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 06:10:03,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:10:03,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 06:10:03,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:10:03,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 06:10:03,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:10:03,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 06:10:03,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:10:03,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-12 06:10:03,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:10:03,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-12 06:10:03,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:10:03,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-12 06:10:03,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:10:03,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-12 06:10:03,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:10:03,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-12 06:10:03,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:10:03,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-12 06:10:03,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:10:03,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-12 06:10:03,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:10:03,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-12 06:10:03,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:10:03,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-12 06:10:03,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:10:03,235 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-07-12 06:10:03,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:10:03,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532930768] [2022-07-12 06:10:03,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532930768] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:10:03,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:10:03,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-12 06:10:03,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682249410] [2022-07-12 06:10:03,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:10:03,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-12 06:10:03,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:10:03,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-12 06:10:03,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-07-12 06:10:03,237 INFO L87 Difference]: Start difference. First operand 184578 states and 312752 transitions. Second operand has 11 states, 11 states have (on average 8.727272727272727) internal successors, (96), 6 states have internal predecessors, (96), 4 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14)