./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec27_productSimulator.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/email_spec27_productSimulator.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 fe4506e3d5e012e1662dc0aa7741c8e3f8f99dc7c5ccf1f202c2f95071bfbf64 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 17:46:20,521 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 17:46:20,523 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 17:46:20,559 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 17:46:20,562 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 17:46:20,563 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 17:46:20,568 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 17:46:20,574 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 17:46:20,576 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 17:46:20,582 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 17:46:20,584 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 17:46:20,586 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 17:46:20,587 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 17:46:20,589 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 17:46:20,591 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 17:46:20,593 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 17:46:20,594 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 17:46:20,595 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 17:46:20,599 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 17:46:20,603 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 17:46:20,605 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 17:46:20,606 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 17:46:20,607 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 17:46:20,608 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 17:46:20,609 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 17:46:20,611 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 17:46:20,611 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 17:46:20,611 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 17:46:20,612 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 17:46:20,613 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 17:46:20,613 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 17:46:20,614 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 17:46:20,614 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 17:46:20,615 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 17:46:20,615 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 17:46:20,616 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 17:46:20,616 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 17:46:20,617 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 17:46:20,617 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 17:46:20,617 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 17:46:20,618 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 17:46:20,619 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 17:46:20,620 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 17:46:20,636 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 17:46:20,637 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 17:46:20,637 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 17:46:20,637 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 17:46:20,638 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 17:46:20,638 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 17:46:20,639 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 17:46:20,639 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 17:46:20,639 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 17:46:20,639 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 17:46:20,639 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 17:46:20,640 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 17:46:20,640 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 17:46:20,640 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 17:46:20,640 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 17:46:20,640 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 17:46:20,641 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 17:46:20,641 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 17:46:20,641 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 17:46:20,641 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 17:46:20,641 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 17:46:20,641 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 17:46:20,642 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 17:46:20,642 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 17:46:20,642 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 17:46:20,642 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 17:46:20,642 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 17:46:20,643 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 17:46:20,643 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 17:46:20,643 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 17:46:20,643 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 17:46:20,643 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 17:46:20,643 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 17:46:20,644 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe4506e3d5e012e1662dc0aa7741c8e3f8f99dc7c5ccf1f202c2f95071bfbf64 [2022-07-13 17:46:20,829 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 17:46:20,857 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 17:46:20,860 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 17:46:20,861 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 17:46:20,861 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 17:46:20,863 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec27_productSimulator.cil.c [2022-07-13 17:46:20,932 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e89f4ed26/af45bda8897f4586849894becb24c032/FLAG758497752 [2022-07-13 17:46:21,525 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 17:46:21,525 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec27_productSimulator.cil.c [2022-07-13 17:46:21,550 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e89f4ed26/af45bda8897f4586849894becb24c032/FLAG758497752 [2022-07-13 17:46:21,738 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e89f4ed26/af45bda8897f4586849894becb24c032 [2022-07-13 17:46:21,741 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 17:46:21,742 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 17:46:21,747 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 17:46:21,748 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 17:46:21,752 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 17:46:21,752 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 05:46:21" (1/1) ... [2022-07-13 17:46:21,753 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9389977 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:46:21, skipping insertion in model container [2022-07-13 17:46:21,753 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 05:46:21" (1/1) ... [2022-07-13 17:46:21,764 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 17:46:21,836 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 17:46:22,059 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_spec27_productSimulator.cil.c[11237,11250] [2022-07-13 17:46:22,348 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 17:46:22,363 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 17:46:22,395 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_spec27_productSimulator.cil.c[11237,11250] [2022-07-13 17:46:22,452 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 17:46:22,484 INFO L208 MainTranslator]: Completed translation [2022-07-13 17:46:22,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:46:22 WrapperNode [2022-07-13 17:46:22,484 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 17:46:22,485 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 17:46:22,485 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 17:46:22,486 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 17:46:22,495 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:46:22" (1/1) ... [2022-07-13 17:46:22,519 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:46:22" (1/1) ... [2022-07-13 17:46:22,579 INFO L137 Inliner]: procedures = 151, calls = 284, calls flagged for inlining = 66, calls inlined = 63, statements flattened = 1304 [2022-07-13 17:46:22,580 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 17:46:22,581 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 17:46:22,581 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 17:46:22,581 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 17:46:22,588 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:46:22" (1/1) ... [2022-07-13 17:46:22,588 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:46:22" (1/1) ... [2022-07-13 17:46:22,596 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:46:22" (1/1) ... [2022-07-13 17:46:22,597 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:46:22" (1/1) ... [2022-07-13 17:46:22,621 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:46:22" (1/1) ... [2022-07-13 17:46:22,633 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:46:22" (1/1) ... [2022-07-13 17:46:22,639 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:46:22" (1/1) ... [2022-07-13 17:46:22,648 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 17:46:22,649 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 17:46:22,649 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 17:46:22,649 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 17:46:22,650 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:46:22" (1/1) ... [2022-07-13 17:46:22,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 17:46:22,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 17:46:22,701 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) [2022-07-13 17:46:22,725 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 [2022-07-13 17:46:22,739 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-07-13 17:46:22,740 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-07-13 17:46:22,740 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__before__Keys [2022-07-13 17:46:22,740 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__before__Keys [2022-07-13 17:46:22,740 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Sign [2022-07-13 17:46:22,740 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Sign [2022-07-13 17:46:22,741 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-07-13 17:46:22,741 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-07-13 17:46:22,741 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-07-13 17:46:22,742 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-07-13 17:46:22,742 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-07-13 17:46:22,742 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-07-13 17:46:22,742 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-07-13 17:46:22,742 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-07-13 17:46:22,742 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Verify [2022-07-13 17:46:22,742 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Verify [2022-07-13 17:46:22,743 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-07-13 17:46:22,743 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-07-13 17:46:22,743 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__before__Keys [2022-07-13 17:46:22,743 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__before__Keys [2022-07-13 17:46:22,743 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-07-13 17:46:22,743 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-07-13 17:46:22,743 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-07-13 17:46:22,744 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-07-13 17:46:22,744 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-07-13 17:46:22,744 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-07-13 17:46:22,744 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Decrypt [2022-07-13 17:46:22,744 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Decrypt [2022-07-13 17:46:22,744 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Encrypt [2022-07-13 17:46:22,744 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Encrypt [2022-07-13 17:46:22,745 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-07-13 17:46:22,745 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-07-13 17:46:22,745 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-07-13 17:46:22,745 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-07-13 17:46:22,745 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-07-13 17:46:22,745 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-07-13 17:46:22,745 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-07-13 17:46:22,746 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Forward [2022-07-13 17:46:22,746 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Forward [2022-07-13 17:46:22,746 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-07-13 17:46:22,746 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-07-13 17:46:22,746 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2022-07-13 17:46:22,746 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2022-07-13 17:46:22,772 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-07-13 17:46:22,772 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-07-13 17:46:22,772 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__before__Encrypt [2022-07-13 17:46:22,772 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__before__Encrypt [2022-07-13 17:46:22,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 17:46:22,773 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-07-13 17:46:22,773 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-07-13 17:46:22,773 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-07-13 17:46:22,774 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-07-13 17:46:22,774 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__AddressBook [2022-07-13 17:46:22,774 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__AddressBook [2022-07-13 17:46:22,775 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Encrypt [2022-07-13 17:46:22,775 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Encrypt [2022-07-13 17:46:22,776 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__AutoResponder [2022-07-13 17:46:22,777 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__AutoResponder [2022-07-13 17:46:22,777 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-07-13 17:46:22,777 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-07-13 17:46:22,777 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-07-13 17:46:22,778 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-07-13 17:46:22,778 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-07-13 17:46:22,778 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-07-13 17:46:22,778 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-07-13 17:46:22,778 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-07-13 17:46:22,778 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2022-07-13 17:46:22,778 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2022-07-13 17:46:22,779 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-07-13 17:46:22,779 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-07-13 17:46:22,779 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-07-13 17:46:22,779 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-07-13 17:46:22,779 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-07-13 17:46:22,780 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-07-13 17:46:22,780 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__before__Keys [2022-07-13 17:46:22,780 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__before__Keys [2022-07-13 17:46:22,780 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Verify [2022-07-13 17:46:22,780 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Verify [2022-07-13 17:46:22,780 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-07-13 17:46:22,781 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-07-13 17:46:22,781 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-07-13 17:46:22,781 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-07-13 17:46:22,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 17:46:22,781 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-07-13 17:46:22,781 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-07-13 17:46:22,781 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Sign [2022-07-13 17:46:22,782 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Sign [2022-07-13 17:46:22,782 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2022-07-13 17:46:22,782 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2022-07-13 17:46:22,782 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-07-13 17:46:22,782 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-07-13 17:46:22,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 17:46:22,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 17:46:23,062 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 17:46:23,064 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 17:46:23,811 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 17:46:23,828 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 17:46:23,829 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-13 17:46:23,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 05:46:23 BoogieIcfgContainer [2022-07-13 17:46:23,833 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 17:46:23,836 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 17:46:23,836 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 17:46:23,839 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 17:46:23,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 05:46:21" (1/3) ... [2022-07-13 17:46:23,840 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77a480bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 05:46:23, skipping insertion in model container [2022-07-13 17:46:23,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:46:22" (2/3) ... [2022-07-13 17:46:23,841 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77a480bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 05:46:23, skipping insertion in model container [2022-07-13 17:46:23,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 05:46:23" (3/3) ... [2022-07-13 17:46:23,843 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec27_productSimulator.cil.c [2022-07-13 17:46:23,856 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 17:46:23,856 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 17:46:23,915 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 17:46:23,921 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@5f72835d, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1eaf5561 [2022-07-13 17:46:23,922 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 17:46:23,928 INFO L276 IsEmpty]: Start isEmpty. Operand has 608 states, 450 states have (on average 1.5133333333333334) internal successors, (681), 470 states have internal predecessors, (681), 112 states have call successors, (112), 44 states have call predecessors, (112), 44 states have return successors, (112), 111 states have call predecessors, (112), 112 states have call successors, (112) [2022-07-13 17:46:23,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-07-13 17:46:23,951 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:46:23,952 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:46:23,952 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:46:23,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:46:23,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1662486373, now seen corresponding path program 1 times [2022-07-13 17:46:23,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:46:23,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285251970] [2022-07-13 17:46:23,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:46:23,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:46:24,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:24,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 17:46:24,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:24,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:46:24,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:24,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 17:46:24,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:24,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:46:24,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:24,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 17:46:24,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:24,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-13 17:46:24,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:24,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-13 17:46:24,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:24,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-13 17:46:24,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:24,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-13 17:46:24,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:24,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:46:24,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:24,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-13 17:46:24,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:24,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:46:24,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:24,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-13 17:46:24,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:24,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:46:24,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:24,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-13 17:46:24,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:24,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-13 17:46:24,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:24,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-13 17:46:24,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:24,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-13 17:46:24,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:24,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-13 17:46:24,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:24,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-13 17:46:24,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:24,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-13 17:46:24,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:24,397 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-07-13 17:46:24,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:46:24,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285251970] [2022-07-13 17:46:24,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285251970] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:46:24,425 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:46:24,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 17:46:24,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572569523] [2022-07-13 17:46:24,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:46:24,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 17:46:24,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:46:24,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 17:46:24,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 17:46:24,463 INFO L87 Difference]: Start difference. First operand has 608 states, 450 states have (on average 1.5133333333333334) internal successors, (681), 470 states have internal predecessors, (681), 112 states have call successors, (112), 44 states have call predecessors, (112), 44 states have return successors, (112), 111 states have call predecessors, (112), 112 states have call successors, (112) Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 2 states have internal predecessors, (84), 2 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-13 17:46:25,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:46:25,724 INFO L93 Difference]: Finished difference Result 1077 states and 1633 transitions. [2022-07-13 17:46:25,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 17:46:25,727 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 2 states have internal predecessors, (84), 2 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 158 [2022-07-13 17:46:25,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:46:25,755 INFO L225 Difference]: With dead ends: 1077 [2022-07-13 17:46:25,756 INFO L226 Difference]: Without dead ends: 731 [2022-07-13 17:46:25,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-13 17:46:25,767 INFO L413 NwaCegarLoop]: 895 mSDtfsCounter, 1366 mSDsluCounter, 714 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 668 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1374 SdHoareTripleChecker+Valid, 1609 SdHoareTripleChecker+Invalid, 1141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 668 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-13 17:46:25,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1374 Valid, 1609 Invalid, 1141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [668 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-13 17:46:25,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2022-07-13 17:46:25,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 601. [2022-07-13 17:46:25,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 601 states, 444 states have (on average 1.509009009009009) internal successors, (670), 463 states have internal predecessors, (670), 112 states have call successors, (112), 44 states have call predecessors, (112), 44 states have return successors, (111), 110 states have call predecessors, (111), 111 states have call successors, (111) [2022-07-13 17:46:25,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 893 transitions. [2022-07-13 17:46:25,871 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 893 transitions. Word has length 158 [2022-07-13 17:46:25,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:46:25,872 INFO L495 AbstractCegarLoop]: Abstraction has 601 states and 893 transitions. [2022-07-13 17:46:25,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 2 states have internal predecessors, (84), 2 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-13 17:46:25,873 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 893 transitions. [2022-07-13 17:46:25,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-07-13 17:46:25,877 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:46:25,877 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:46:25,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 17:46:25,878 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:46:25,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:46:25,879 INFO L85 PathProgramCache]: Analyzing trace with hash 487465451, now seen corresponding path program 1 times [2022-07-13 17:46:25,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:46:25,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639963623] [2022-07-13 17:46:25,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:46:25,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:46:25,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:26,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 17:46:26,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:26,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:46:26,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:26,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 17:46:26,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:26,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:46:26,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:26,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 17:46:26,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:26,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-13 17:46:26,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:26,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-13 17:46:26,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:26,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-13 17:46:26,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:26,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-13 17:46:26,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:26,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:46:26,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:26,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-13 17:46:26,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:26,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:46:26,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:26,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-13 17:46:26,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:26,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:46:26,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:26,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-13 17:46:26,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:26,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-13 17:46:26,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:26,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-13 17:46:26,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:26,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-13 17:46:26,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:26,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-13 17:46:26,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:26,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-13 17:46:26,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:26,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-13 17:46:26,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:26,142 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-07-13 17:46:26,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:46:26,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639963623] [2022-07-13 17:46:26,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639963623] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:46:26,142 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:46:26,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 17:46:26,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614404831] [2022-07-13 17:46:26,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:46:26,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-13 17:46:26,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:46:26,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-13 17:46:26,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-13 17:46:26,146 INFO L87 Difference]: Start difference. First operand 601 states and 893 transitions. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-13 17:46:28,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:46:28,517 INFO L93 Difference]: Finished difference Result 1296 states and 1954 transitions. [2022-07-13 17:46:28,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-13 17:46:28,518 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 159 [2022-07-13 17:46:28,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:46:28,523 INFO L225 Difference]: With dead ends: 1296 [2022-07-13 17:46:28,524 INFO L226 Difference]: Without dead ends: 731 [2022-07-13 17:46:28,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2022-07-13 17:46:28,527 INFO L413 NwaCegarLoop]: 884 mSDtfsCounter, 1366 mSDsluCounter, 1474 mSDsCounter, 0 mSdLazyCounter, 2787 mSolverCounterSat, 669 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1372 SdHoareTripleChecker+Valid, 2358 SdHoareTripleChecker+Invalid, 3456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 669 IncrementalHoareTripleChecker+Valid, 2787 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-13 17:46:28,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1372 Valid, 2358 Invalid, 3456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [669 Valid, 2787 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-07-13 17:46:28,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2022-07-13 17:46:28,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 601. [2022-07-13 17:46:28,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 601 states, 444 states have (on average 1.4932432432432432) internal successors, (663), 463 states have internal predecessors, (663), 112 states have call successors, (112), 44 states have call predecessors, (112), 44 states have return successors, (111), 110 states have call predecessors, (111), 111 states have call successors, (111) [2022-07-13 17:46:28,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 886 transitions. [2022-07-13 17:46:28,573 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 886 transitions. Word has length 159 [2022-07-13 17:46:28,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:46:28,574 INFO L495 AbstractCegarLoop]: Abstraction has 601 states and 886 transitions. [2022-07-13 17:46:28,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-13 17:46:28,575 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 886 transitions. [2022-07-13 17:46:28,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-07-13 17:46:28,578 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:46:28,578 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:46:28,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 17:46:28,579 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:46:28,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:46:28,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1007719467, now seen corresponding path program 1 times [2022-07-13 17:46:28,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:46:28,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024302438] [2022-07-13 17:46:28,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:46:28,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:46:28,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:28,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 17:46:28,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:28,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:46:28,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:28,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 17:46:28,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:28,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:46:28,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:28,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 17:46:28,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:28,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-13 17:46:28,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:28,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-13 17:46:28,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:28,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-13 17:46:28,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:28,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-13 17:46:28,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:28,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:46:28,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:28,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-13 17:46:28,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:28,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:46:28,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:28,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-13 17:46:28,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:28,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:46:28,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:28,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-13 17:46:28,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:28,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-13 17:46:28,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:28,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-13 17:46:28,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:28,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-13 17:46:28,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:28,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-13 17:46:28,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:28,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-13 17:46:28,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:28,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-13 17:46:28,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:28,772 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-07-13 17:46:28,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:46:28,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024302438] [2022-07-13 17:46:28,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024302438] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:46:28,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:46:28,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 17:46:28,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830435982] [2022-07-13 17:46:28,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:46:28,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 17:46:28,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:46:28,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 17:46:28,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-13 17:46:28,775 INFO L87 Difference]: Start difference. First operand 601 states and 886 transitions. Second operand has 6 states, 6 states have (on average 15.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-07-13 17:46:29,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:46:29,818 INFO L93 Difference]: Finished difference Result 1299 states and 1968 transitions. [2022-07-13 17:46:29,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-13 17:46:29,819 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), 3 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 164 [2022-07-13 17:46:29,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:46:29,824 INFO L225 Difference]: With dead ends: 1299 [2022-07-13 17:46:29,824 INFO L226 Difference]: Without dead ends: 731 [2022-07-13 17:46:29,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-07-13 17:46:29,827 INFO L413 NwaCegarLoop]: 883 mSDtfsCounter, 2072 mSDsluCounter, 678 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 870 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2099 SdHoareTripleChecker+Valid, 1561 SdHoareTripleChecker+Invalid, 1359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 870 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-13 17:46:29,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2099 Valid, 1561 Invalid, 1359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [870 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-13 17:46:29,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2022-07-13 17:46:29,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 602. [2022-07-13 17:46:29,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 446 states have (on average 1.484304932735426) internal successors, (662), 463 states have internal predecessors, (662), 110 states have call successors, (110), 45 states have call predecessors, (110), 45 states have return successors, (109), 108 states have call predecessors, (109), 109 states have call successors, (109) [2022-07-13 17:46:29,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 881 transitions. [2022-07-13 17:46:29,862 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 881 transitions. Word has length 164 [2022-07-13 17:46:29,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:46:29,862 INFO L495 AbstractCegarLoop]: Abstraction has 602 states and 881 transitions. [2022-07-13 17:46:29,862 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), 3 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-07-13 17:46:29,863 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 881 transitions. [2022-07-13 17:46:29,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-07-13 17:46:29,866 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:46:29,866 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:46:29,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-13 17:46:29,867 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:46:29,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:46:29,868 INFO L85 PathProgramCache]: Analyzing trace with hash 858043398, now seen corresponding path program 1 times [2022-07-13 17:46:29,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:46:29,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194837325] [2022-07-13 17:46:29,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:46:29,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:46:29,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:29,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 17:46:29,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:29,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:46:29,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:29,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 17:46:29,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:29,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:46:29,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:29,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 17:46:29,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:29,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-13 17:46:29,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:29,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-13 17:46:29,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:29,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-13 17:46:29,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:29,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-13 17:46:29,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:29,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:46:29,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:29,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 17:46:29,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:29,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:46:29,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:29,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-13 17:46:29,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:29,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:46:29,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:29,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-13 17:46:29,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:29,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-13 17:46:29,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:29,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-13 17:46:29,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:29,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-13 17:46:29,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:29,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-13 17:46:29,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:29,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-13 17:46:29,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:29,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:46:29,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:29,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-13 17:46:29,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:29,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-13 17:46:29,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:29,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-13 17:46:29,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:29,993 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-07-13 17:46:29,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:46:29,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194837325] [2022-07-13 17:46:29,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194837325] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:46:29,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:46:29,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 17:46:29,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761870512] [2022-07-13 17:46:29,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:46:29,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 17:46:29,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:46:29,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 17:46:29,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-13 17:46:29,996 INFO L87 Difference]: Start difference. First operand 602 states and 881 transitions. Second operand has 6 states, 6 states have (on average 17.5) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (33), 5 states have call predecessors, (33), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-13 17:46:32,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:46:32,864 INFO L93 Difference]: Finished difference Result 1976 states and 3060 transitions. [2022-07-13 17:46:32,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-13 17:46:32,865 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.5) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (33), 5 states have call predecessors, (33), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 185 [2022-07-13 17:46:32,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:46:32,876 INFO L225 Difference]: With dead ends: 1976 [2022-07-13 17:46:32,876 INFO L226 Difference]: Without dead ends: 1408 [2022-07-13 17:46:32,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2022-07-13 17:46:32,888 INFO L413 NwaCegarLoop]: 940 mSDtfsCounter, 3282 mSDsluCounter, 909 mSDsCounter, 0 mSdLazyCounter, 1684 mSolverCounterSat, 1472 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3324 SdHoareTripleChecker+Valid, 1849 SdHoareTripleChecker+Invalid, 3156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1472 IncrementalHoareTripleChecker+Valid, 1684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-07-13 17:46:32,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3324 Valid, 1849 Invalid, 3156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1472 Valid, 1684 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-07-13 17:46:32,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1408 states. [2022-07-13 17:46:32,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1408 to 1148. [2022-07-13 17:46:32,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1148 states, 853 states have (on average 1.4912075029308323) internal successors, (1272), 883 states have internal predecessors, (1272), 205 states have call successors, (205), 89 states have call predecessors, (205), 89 states have return successors, (216), 202 states have call predecessors, (216), 203 states have call successors, (216) [2022-07-13 17:46:32,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1148 states to 1148 states and 1693 transitions. [2022-07-13 17:46:32,991 INFO L78 Accepts]: Start accepts. Automaton has 1148 states and 1693 transitions. Word has length 185 [2022-07-13 17:46:32,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:46:32,991 INFO L495 AbstractCegarLoop]: Abstraction has 1148 states and 1693 transitions. [2022-07-13 17:46:32,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.5) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (33), 5 states have call predecessors, (33), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-13 17:46:32,992 INFO L276 IsEmpty]: Start isEmpty. Operand 1148 states and 1693 transitions. [2022-07-13 17:46:33,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-07-13 17:46:33,003 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:46:33,004 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:46:33,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-13 17:46:33,004 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:46:33,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:46:33,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1580096765, now seen corresponding path program 1 times [2022-07-13 17:46:33,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:46:33,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044726660] [2022-07-13 17:46:33,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:46:33,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:46:33,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:33,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 17:46:33,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:33,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:46:33,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:33,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 17:46:33,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:33,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:46:33,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:33,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 17:46:33,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:33,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-13 17:46:33,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:33,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-13 17:46:33,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:33,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-13 17:46:33,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:33,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-13 17:46:33,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:33,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:46:33,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:33,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-13 17:46:33,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:33,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:46:33,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:33,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-13 17:46:33,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:33,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:46:33,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:33,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-13 17:46:33,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:33,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-13 17:46:33,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:33,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-13 17:46:33,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:33,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-13 17:46:33,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:33,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-13 17:46:33,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:33,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:46:33,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:33,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-13 17:46:33,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:33,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-13 17:46:33,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:33,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-13 17:46:33,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:33,159 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-07-13 17:46:33,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:46:33,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044726660] [2022-07-13 17:46:33,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044726660] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:46:33,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:46:33,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 17:46:33,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443912910] [2022-07-13 17:46:33,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:46:33,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 17:46:33,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:46:33,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 17:46:33,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-13 17:46:33,161 INFO L87 Difference]: Start difference. First operand 1148 states and 1693 transitions. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (32), 5 states have call predecessors, (32), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-07-13 17:46:34,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:46:34,308 INFO L93 Difference]: Finished difference Result 1279 states and 1921 transitions. [2022-07-13 17:46:34,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-13 17:46:34,309 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (32), 5 states have call predecessors, (32), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 179 [2022-07-13 17:46:34,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:46:34,313 INFO L225 Difference]: With dead ends: 1279 [2022-07-13 17:46:34,313 INFO L226 Difference]: Without dead ends: 732 [2022-07-13 17:46:34,315 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-07-13 17:46:34,315 INFO L413 NwaCegarLoop]: 878 mSDtfsCounter, 2029 mSDsluCounter, 684 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 823 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2056 SdHoareTripleChecker+Valid, 1562 SdHoareTripleChecker+Invalid, 1327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 823 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-13 17:46:34,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2056 Valid, 1562 Invalid, 1327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [823 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-13 17:46:34,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2022-07-13 17:46:34,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 603. [2022-07-13 17:46:34,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 448 states have (on average 1.4732142857142858) internal successors, (660), 463 states have internal predecessors, (660), 108 states have call successors, (108), 46 states have call predecessors, (108), 46 states have return successors, (107), 106 states have call predecessors, (107), 107 states have call successors, (107) [2022-07-13 17:46:34,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 875 transitions. [2022-07-13 17:46:34,347 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 875 transitions. Word has length 179 [2022-07-13 17:46:34,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:46:34,347 INFO L495 AbstractCegarLoop]: Abstraction has 603 states and 875 transitions. [2022-07-13 17:46:34,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (32), 5 states have call predecessors, (32), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-07-13 17:46:34,347 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 875 transitions. [2022-07-13 17:46:34,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-07-13 17:46:34,351 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:46:34,351 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:46:34,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-13 17:46:34,351 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:46:34,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:46:34,352 INFO L85 PathProgramCache]: Analyzing trace with hash 2046699704, now seen corresponding path program 1 times [2022-07-13 17:46:34,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:46:34,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646165401] [2022-07-13 17:46:34,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:46:34,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:46:34,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:34,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 17:46:34,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:34,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:46:34,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:34,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 17:46:34,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:34,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:46:34,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:34,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 17:46:34,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:34,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-13 17:46:34,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:34,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-13 17:46:34,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:34,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-13 17:46:34,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:34,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-13 17:46:34,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:34,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:46:34,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:34,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-13 17:46:34,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:34,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:46:34,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:34,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-13 17:46:34,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:34,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:46:34,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:34,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-13 17:46:34,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:34,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-13 17:46:34,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:34,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-13 17:46:34,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:34,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-13 17:46:34,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:34,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-13 17:46:34,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:34,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-13 17:46:34,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:34,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-13 17:46:34,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:34,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:46:34,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:34,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-13 17:46:34,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:34,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-07-13 17:46:34,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:34,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-13 17:46:34,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:34,534 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2022-07-13 17:46:34,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:46:34,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646165401] [2022-07-13 17:46:34,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646165401] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:46:34,535 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:46:34,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 17:46:34,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657648379] [2022-07-13 17:46:34,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:46:34,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 17:46:34,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:46:34,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 17:46:34,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-13 17:46:34,537 INFO L87 Difference]: Start difference. First operand 603 states and 875 transitions. Second operand has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (34), 5 states have call predecessors, (34), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-13 17:46:35,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:46:35,734 INFO L93 Difference]: Finished difference Result 1289 states and 1904 transitions. [2022-07-13 17:46:35,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-13 17:46:35,735 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (34), 5 states have call predecessors, (34), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 195 [2022-07-13 17:46:35,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:46:35,739 INFO L225 Difference]: With dead ends: 1289 [2022-07-13 17:46:35,739 INFO L226 Difference]: Without dead ends: 735 [2022-07-13 17:46:35,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-07-13 17:46:35,744 INFO L413 NwaCegarLoop]: 858 mSDtfsCounter, 2010 mSDsluCounter, 643 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 815 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2035 SdHoareTripleChecker+Valid, 1501 SdHoareTripleChecker+Invalid, 1336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 815 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-13 17:46:35,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2035 Valid, 1501 Invalid, 1336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [815 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-13 17:46:35,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2022-07-13 17:46:35,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 600. [2022-07-13 17:46:35,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 600 states, 448 states have (on average 1.4486607142857142) internal successors, (649), 458 states have internal predecessors, (649), 105 states have call successors, (105), 46 states have call predecessors, (105), 46 states have return successors, (104), 103 states have call predecessors, (104), 104 states have call successors, (104) [2022-07-13 17:46:35,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 858 transitions. [2022-07-13 17:46:35,775 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 858 transitions. Word has length 195 [2022-07-13 17:46:35,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:46:35,775 INFO L495 AbstractCegarLoop]: Abstraction has 600 states and 858 transitions. [2022-07-13 17:46:35,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (34), 5 states have call predecessors, (34), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-13 17:46:35,776 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 858 transitions. [2022-07-13 17:46:35,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-07-13 17:46:35,779 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:46:35,779 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:46:35,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-13 17:46:35,780 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:46:35,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:46:35,780 INFO L85 PathProgramCache]: Analyzing trace with hash 862754499, now seen corresponding path program 1 times [2022-07-13 17:46:35,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:46:35,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044837061] [2022-07-13 17:46:35,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:46:35,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:46:35,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:35,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 17:46:35,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:35,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:46:35,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:35,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 17:46:35,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:35,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:46:35,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:35,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 17:46:35,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:35,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-13 17:46:35,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:35,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-13 17:46:35,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:35,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-13 17:46:35,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:35,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-13 17:46:35,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:35,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:46:35,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:35,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 17:46:35,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:35,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-13 17:46:35,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:35,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:46:35,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:35,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-13 17:46:35,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:35,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-13 17:46:35,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:35,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:46:35,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:35,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-13 17:46:35,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:35,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-13 17:46:35,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:35,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-13 17:46:35,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:35,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-13 17:46:35,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:35,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-13 17:46:35,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:35,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-13 17:46:35,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:35,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-13 17:46:35,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:35,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-13 17:46:35,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:35,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:46:35,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:35,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-13 17:46:35,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:35,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-13 17:46:35,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:35,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-07-13 17:46:36,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:36,002 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2022-07-13 17:46:36,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:46:36,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044837061] [2022-07-13 17:46:36,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044837061] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 17:46:36,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [992168444] [2022-07-13 17:46:36,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:46:36,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:46:36,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 17:46:36,016 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) [2022-07-13 17:46:36,020 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-13 17:46:36,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:36,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 1683 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 17:46:36,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 17:46:36,438 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2022-07-13 17:46:36,438 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 17:46:36,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [992168444] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:46:36,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 17:46:36,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13 [2022-07-13 17:46:36,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228851740] [2022-07-13 17:46:36,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:46:36,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 17:46:36,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:46:36,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 17:46:36,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2022-07-13 17:46:36,440 INFO L87 Difference]: Start difference. First operand 600 states and 858 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-13 17:46:36,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:46:36,491 INFO L93 Difference]: Finished difference Result 932 states and 1315 transitions. [2022-07-13 17:46:36,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 17:46:36,491 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 213 [2022-07-13 17:46:36,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:46:36,495 INFO L225 Difference]: With dead ends: 932 [2022-07-13 17:46:36,495 INFO L226 Difference]: Without dead ends: 603 [2022-07-13 17:46:36,496 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2022-07-13 17:46:36,497 INFO L413 NwaCegarLoop]: 852 mSDtfsCounter, 1 mSDsluCounter, 850 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1702 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 [2022-07-13 17:46:36,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1702 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 17:46:36,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2022-07-13 17:46:36,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 602. [2022-07-13 17:46:36,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 450 states have (on average 1.4466666666666668) internal successors, (651), 460 states have internal predecessors, (651), 105 states have call successors, (105), 46 states have call predecessors, (105), 46 states have return successors, (104), 103 states have call predecessors, (104), 104 states have call successors, (104) [2022-07-13 17:46:36,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 860 transitions. [2022-07-13 17:46:36,556 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 860 transitions. Word has length 213 [2022-07-13 17:46:36,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:46:36,556 INFO L495 AbstractCegarLoop]: Abstraction has 602 states and 860 transitions. [2022-07-13 17:46:36,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-13 17:46:36,557 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 860 transitions. [2022-07-13 17:46:36,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-07-13 17:46:36,576 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:46:36,576 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:46:36,605 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-13 17:46:36,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:46:36,778 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:46:36,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:46:36,778 INFO L85 PathProgramCache]: Analyzing trace with hash -1363596423, now seen corresponding path program 1 times [2022-07-13 17:46:36,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:46:36,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617722738] [2022-07-13 17:46:36,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:46:36,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:46:36,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:36,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 17:46:36,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:36,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:46:36,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:36,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 17:46:36,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:36,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:46:36,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:36,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 17:46:36,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:36,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-13 17:46:36,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:36,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-13 17:46:36,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:36,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-13 17:46:36,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:36,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-13 17:46:36,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:36,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:46:36,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:36,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 17:46:36,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:36,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-13 17:46:36,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:36,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:46:36,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:36,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-13 17:46:36,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:36,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-13 17:46:36,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:36,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:46:36,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:36,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-13 17:46:36,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:36,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-13 17:46:36,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:36,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-13 17:46:36,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:36,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-13 17:46:36,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:36,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-13 17:46:36,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:36,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-07-13 17:46:36,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:36,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-07-13 17:46:36,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:36,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:46:36,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:36,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-13 17:46:36,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:36,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-07-13 17:46:36,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:36,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-13 17:46:36,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:36,977 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2022-07-13 17:46:36,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:46:36,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617722738] [2022-07-13 17:46:36,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617722738] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 17:46:36,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [698536796] [2022-07-13 17:46:36,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:46:36,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:46:36,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 17:46:36,980 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) [2022-07-13 17:46:36,981 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-13 17:46:37,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:37,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 1662 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 17:46:37,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 17:46:37,341 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-07-13 17:46:37,341 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 17:46:37,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [698536796] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:46:37,341 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 17:46:37,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13 [2022-07-13 17:46:37,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874200037] [2022-07-13 17:46:37,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:46:37,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 17:46:37,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:46:37,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 17:46:37,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2022-07-13 17:46:37,343 INFO L87 Difference]: Start difference. First operand 602 states and 860 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-13 17:46:37,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:46:37,392 INFO L93 Difference]: Finished difference Result 1221 states and 1779 transitions. [2022-07-13 17:46:37,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 17:46:37,392 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 214 [2022-07-13 17:46:37,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:46:37,397 INFO L225 Difference]: With dead ends: 1221 [2022-07-13 17:46:37,397 INFO L226 Difference]: Without dead ends: 700 [2022-07-13 17:46:37,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2022-07-13 17:46:37,400 INFO L413 NwaCegarLoop]: 877 mSDtfsCounter, 165 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 1682 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 [2022-07-13 17:46:37,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 1682 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 17:46:37,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2022-07-13 17:46:37,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 692. [2022-07-13 17:46:37,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 692 states, 526 states have (on average 1.461977186311787) internal successors, (769), 536 states have internal predecessors, (769), 119 states have call successors, (119), 46 states have call predecessors, (119), 46 states have return successors, (118), 117 states have call predecessors, (118), 118 states have call successors, (118) [2022-07-13 17:46:37,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 1006 transitions. [2022-07-13 17:46:37,435 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 1006 transitions. Word has length 214 [2022-07-13 17:46:37,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:46:37,436 INFO L495 AbstractCegarLoop]: Abstraction has 692 states and 1006 transitions. [2022-07-13 17:46:37,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-13 17:46:37,437 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 1006 transitions. [2022-07-13 17:46:37,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-07-13 17:46:37,440 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:46:37,440 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:46:37,471 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-13 17:46:37,663 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,SelfDestructingSolverStorable7 [2022-07-13 17:46:37,664 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:46:37,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:46:37,664 INFO L85 PathProgramCache]: Analyzing trace with hash -2106062850, now seen corresponding path program 1 times [2022-07-13 17:46:37,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:46:37,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506049414] [2022-07-13 17:46:37,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:46:37,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:46:37,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:37,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 17:46:37,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:37,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:46:37,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:37,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 17:46:37,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:37,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:46:37,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:37,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 17:46:37,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:37,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-13 17:46:37,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:37,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-13 17:46:37,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:37,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-13 17:46:37,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:37,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-13 17:46:37,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:37,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:46:37,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:37,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 17:46:37,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:37,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-13 17:46:37,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:37,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:46:37,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:37,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-13 17:46:37,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:37,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-13 17:46:37,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:37,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:46:37,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:37,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-13 17:46:37,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:37,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-13 17:46:37,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:37,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-13 17:46:37,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:37,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-13 17:46:37,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:37,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-07-13 17:46:37,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:37,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-13 17:46:37,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:37,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-13 17:46:37,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:37,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:46:37,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:37,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-13 17:46:37,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:37,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-07-13 17:46:37,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:37,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-13 17:46:37,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:37,837 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2022-07-13 17:46:37,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:46:37,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506049414] [2022-07-13 17:46:37,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506049414] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 17:46:37,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [233506141] [2022-07-13 17:46:37,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:46:37,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:46:37,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 17:46:37,840 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) [2022-07-13 17:46:37,866 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-13 17:46:38,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:38,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 1669 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-13 17:46:38,205 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 17:46:38,339 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2022-07-13 17:46:38,340 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 17:46:38,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [233506141] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:46:38,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 17:46:38,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [12] total 18 [2022-07-13 17:46:38,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620436284] [2022-07-13 17:46:38,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:46:38,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-13 17:46:38,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:46:38,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-13 17:46:38,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-07-13 17:46:38,342 INFO L87 Difference]: Start difference. First operand 692 states and 1006 transitions. Second operand has 8 states, 6 states have (on average 21.833333333333332) internal successors, (131), 8 states have internal predecessors, (131), 4 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) [2022-07-13 17:46:38,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:46:38,526 INFO L93 Difference]: Finished difference Result 1328 states and 1947 transitions. [2022-07-13 17:46:38,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 17:46:38,527 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 21.833333333333332) internal successors, (131), 8 states have internal predecessors, (131), 4 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) Word has length 215 [2022-07-13 17:46:38,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:46:38,531 INFO L225 Difference]: With dead ends: 1328 [2022-07-13 17:46:38,531 INFO L226 Difference]: Without dead ends: 694 [2022-07-13 17:46:38,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2022-07-13 17:46:38,536 INFO L413 NwaCegarLoop]: 843 mSDtfsCounter, 363 mSDsluCounter, 4635 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 5478 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 17:46:38,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [365 Valid, 5478 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 17:46:38,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 694 states. [2022-07-13 17:46:38,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 694 to 694. [2022-07-13 17:46:38,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 527 states have (on average 1.4611005692599621) internal successors, (770), 538 states have internal predecessors, (770), 119 states have call successors, (119), 46 states have call predecessors, (119), 47 states have return successors, (120), 117 states have call predecessors, (120), 118 states have call successors, (120) [2022-07-13 17:46:38,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 1009 transitions. [2022-07-13 17:46:38,583 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 1009 transitions. Word has length 215 [2022-07-13 17:46:38,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:46:38,584 INFO L495 AbstractCegarLoop]: Abstraction has 694 states and 1009 transitions. [2022-07-13 17:46:38,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 21.833333333333332) internal successors, (131), 8 states have internal predecessors, (131), 4 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) [2022-07-13 17:46:38,584 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 1009 transitions. [2022-07-13 17:46:38,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-07-13 17:46:38,588 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:46:38,588 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:46:38,616 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-13 17:46:38,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:46:38,804 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:46:38,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:46:38,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1942488305, now seen corresponding path program 1 times [2022-07-13 17:46:38,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:46:38,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268374656] [2022-07-13 17:46:38,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:46:38,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:46:38,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:38,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 17:46:38,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:38,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:46:38,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:38,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 17:46:38,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:38,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:46:38,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:38,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 17:46:38,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:38,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-13 17:46:38,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:38,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-13 17:46:38,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:38,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-13 17:46:38,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:38,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-13 17:46:38,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:38,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:46:38,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:38,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 17:46:38,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:38,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-13 17:46:38,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:38,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:46:38,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:38,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-13 17:46:38,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:38,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-13 17:46:38,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:38,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:46:38,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:38,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-13 17:46:38,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:38,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-13 17:46:38,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:39,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-13 17:46:39,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:39,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-13 17:46:39,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:39,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-13 17:46:39,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:39,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-13 17:46:39,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:39,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-13 17:46:39,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:39,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-07-13 17:46:39,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:39,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:46:39,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:39,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-07-13 17:46:39,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:39,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-13 17:46:39,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:39,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-07-13 17:46:39,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:39,037 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2022-07-13 17:46:39,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:46:39,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268374656] [2022-07-13 17:46:39,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268374656] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 17:46:39,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [135935420] [2022-07-13 17:46:39,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:46:39,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:46:39,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 17:46:39,039 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) [2022-07-13 17:46:39,041 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-13 17:46:39,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:39,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 1707 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 17:46:39,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 17:46:39,505 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-07-13 17:46:39,505 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 17:46:39,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [135935420] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:46:39,505 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 17:46:39,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [13] total 14 [2022-07-13 17:46:39,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445902577] [2022-07-13 17:46:39,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:46:39,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 17:46:39,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:46:39,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 17:46:39,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2022-07-13 17:46:39,507 INFO L87 Difference]: Start difference. First operand 694 states and 1009 transitions. Second operand has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 3 states have call successors, (37), 3 states have call predecessors, (37), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-07-13 17:46:39,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:46:39,578 INFO L93 Difference]: Finished difference Result 1660 states and 2413 transitions. [2022-07-13 17:46:39,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 17:46:39,578 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 3 states have call successors, (37), 3 states have call predecessors, (37), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 223 [2022-07-13 17:46:39,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:46:39,585 INFO L225 Difference]: With dead ends: 1660 [2022-07-13 17:46:39,585 INFO L226 Difference]: Without dead ends: 1339 [2022-07-13 17:46:39,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2022-07-13 17:46:39,588 INFO L413 NwaCegarLoop]: 966 mSDtfsCounter, 720 mSDsluCounter, 818 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 720 SdHoareTripleChecker+Valid, 1784 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 17:46:39,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [720 Valid, 1784 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 17:46:39,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1339 states. [2022-07-13 17:46:39,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1339 to 1337. [2022-07-13 17:46:39,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1337 states, 1023 states have (on average 1.469208211143695) internal successors, (1503), 1042 states have internal predecessors, (1503), 222 states have call successors, (222), 89 states have call predecessors, (222), 91 states have return successors, (233), 218 states have call predecessors, (233), 220 states have call successors, (233) [2022-07-13 17:46:39,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1337 states to 1337 states and 1958 transitions. [2022-07-13 17:46:39,682 INFO L78 Accepts]: Start accepts. Automaton has 1337 states and 1958 transitions. Word has length 223 [2022-07-13 17:46:39,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:46:39,683 INFO L495 AbstractCegarLoop]: Abstraction has 1337 states and 1958 transitions. [2022-07-13 17:46:39,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 3 states have call successors, (37), 3 states have call predecessors, (37), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-07-13 17:46:39,683 INFO L276 IsEmpty]: Start isEmpty. Operand 1337 states and 1958 transitions. [2022-07-13 17:46:39,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2022-07-13 17:46:39,690 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:46:39,690 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:46:39,720 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-13 17:46:39,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:46:39,914 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:46:39,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:46:39,914 INFO L85 PathProgramCache]: Analyzing trace with hash -622946293, now seen corresponding path program 1 times [2022-07-13 17:46:39,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:46:39,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366793242] [2022-07-13 17:46:39,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:46:39,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:46:39,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:39,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 17:46:39,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:39,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:46:39,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:39,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 17:46:39,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:39,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:46:39,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:39,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 17:46:39,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:39,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-13 17:46:39,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:39,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-13 17:46:39,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:39,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-13 17:46:39,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:39,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-13 17:46:39,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:39,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:46:39,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:40,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 17:46:40,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:40,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-13 17:46:40,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:40,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:46:40,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:40,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-13 17:46:40,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:40,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-13 17:46:40,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:40,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:46:40,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:40,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-13 17:46:40,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:40,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-13 17:46:40,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:40,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-13 17:46:40,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:40,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-13 17:46:40,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:40,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-13 17:46:40,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:40,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-13 17:46:40,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:40,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-13 17:46:40,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:40,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:46:40,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:40,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-13 17:46:40,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:40,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-07-13 17:46:40,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:40,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-07-13 17:46:40,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:40,101 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2022-07-13 17:46:40,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:46:40,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366793242] [2022-07-13 17:46:40,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366793242] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 17:46:40,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1817805763] [2022-07-13 17:46:40,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:46:40,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:46:40,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 17:46:40,103 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) [2022-07-13 17:46:40,106 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-13 17:46:40,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:40,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 1670 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-13 17:46:40,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 17:46:40,526 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2022-07-13 17:46:40,526 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 17:46:40,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1817805763] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:46:40,527 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 17:46:40,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [13] total 17 [2022-07-13 17:46:40,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362681133] [2022-07-13 17:46:40,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:46:40,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 17:46:40,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:46:40,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 17:46:40,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=238, Unknown=0, NotChecked=0, Total=272 [2022-07-13 17:46:40,529 INFO L87 Difference]: Start difference. First operand 1337 states and 1958 transitions. Second operand has 6 states, 5 states have (on average 26.6) internal successors, (133), 6 states have internal predecessors, (133), 3 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2022-07-13 17:46:40,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:46:40,685 INFO L93 Difference]: Finished difference Result 2589 states and 3822 transitions. [2022-07-13 17:46:40,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 17:46:40,686 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 26.6) internal successors, (133), 6 states have internal predecessors, (133), 3 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 216 [2022-07-13 17:46:40,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:46:40,693 INFO L225 Difference]: With dead ends: 2589 [2022-07-13 17:46:40,693 INFO L226 Difference]: Without dead ends: 1341 [2022-07-13 17:46:40,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2022-07-13 17:46:40,698 INFO L413 NwaCegarLoop]: 842 mSDtfsCounter, 361 mSDsluCounter, 2958 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 3800 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 17:46:40,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [361 Valid, 3800 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 17:46:40,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1341 states. [2022-07-13 17:46:40,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1341 to 1341. [2022-07-13 17:46:40,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1341 states, 1025 states have (on average 1.4682926829268292) internal successors, (1505), 1046 states have internal predecessors, (1505), 222 states have call successors, (222), 89 states have call predecessors, (222), 93 states have return successors, (243), 218 states have call predecessors, (243), 220 states have call successors, (243) [2022-07-13 17:46:40,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1341 states to 1341 states and 1970 transitions. [2022-07-13 17:46:40,798 INFO L78 Accepts]: Start accepts. Automaton has 1341 states and 1970 transitions. Word has length 216 [2022-07-13 17:46:40,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:46:40,798 INFO L495 AbstractCegarLoop]: Abstraction has 1341 states and 1970 transitions. [2022-07-13 17:46:40,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 26.6) internal successors, (133), 6 states have internal predecessors, (133), 3 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2022-07-13 17:46:40,798 INFO L276 IsEmpty]: Start isEmpty. Operand 1341 states and 1970 transitions. [2022-07-13 17:46:40,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-07-13 17:46:40,805 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:46:40,805 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:46:40,833 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-13 17:46:41,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-07-13 17:46:41,024 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:46:41,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:46:41,024 INFO L85 PathProgramCache]: Analyzing trace with hash -899423682, now seen corresponding path program 1 times [2022-07-13 17:46:41,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:46:41,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592003421] [2022-07-13 17:46:41,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:46:41,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:46:41,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:41,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 17:46:41,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:41,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:46:41,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:41,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 17:46:41,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:41,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:46:41,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:41,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 17:46:41,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:41,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-13 17:46:41,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:41,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-13 17:46:41,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:41,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-13 17:46:41,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:41,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-13 17:46:41,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:41,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:46:41,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:41,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 17:46:41,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:41,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-13 17:46:41,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:41,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:46:41,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:41,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-13 17:46:41,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:41,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-13 17:46:41,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:41,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:46:41,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:41,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-13 17:46:41,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:41,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-13 17:46:41,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:41,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-13 17:46:41,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:41,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-13 17:46:41,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:41,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-13 17:46:41,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:41,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-13 17:46:41,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:41,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-07-13 17:46:41,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:41,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:46:41,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:41,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-07-13 17:46:41,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:41,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-07-13 17:46:41,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:41,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-13 17:46:41,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:41,217 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2022-07-13 17:46:41,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:46:41,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592003421] [2022-07-13 17:46:41,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592003421] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:46:41,218 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:46:41,218 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-13 17:46:41,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035336553] [2022-07-13 17:46:41,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:46:41,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 17:46:41,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:46:41,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 17:46:41,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-07-13 17:46:41,221 INFO L87 Difference]: Start difference. First operand 1341 states and 1970 transitions. Second operand has 12 states, 10 states have (on average 12.9) internal successors, (129), 8 states have internal predecessors, (129), 4 states have call successors, (36), 6 states have call predecessors, (36), 3 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) [2022-07-13 17:46:44,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:46:44,272 INFO L93 Difference]: Finished difference Result 2813 states and 4269 transitions. [2022-07-13 17:46:44,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-13 17:46:44,273 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 12.9) internal successors, (129), 8 states have internal predecessors, (129), 4 states have call successors, (36), 6 states have call predecessors, (36), 3 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) Word has length 217 [2022-07-13 17:46:44,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:46:44,289 INFO L225 Difference]: With dead ends: 2813 [2022-07-13 17:46:44,289 INFO L226 Difference]: Without dead ends: 1589 [2022-07-13 17:46:44,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=478, Unknown=0, NotChecked=0, Total=600 [2022-07-13 17:46:44,294 INFO L413 NwaCegarLoop]: 853 mSDtfsCounter, 2176 mSDsluCounter, 1935 mSDsCounter, 0 mSdLazyCounter, 5084 mSolverCounterSat, 936 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2176 SdHoareTripleChecker+Valid, 2788 SdHoareTripleChecker+Invalid, 6020 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 936 IncrementalHoareTripleChecker+Valid, 5084 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-07-13 17:46:44,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2176 Valid, 2788 Invalid, 6020 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [936 Valid, 5084 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-07-13 17:46:44,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1589 states. [2022-07-13 17:46:44,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1589 to 1341. [2022-07-13 17:46:44,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1341 states, 1025 states have (on average 1.4682926829268292) internal successors, (1505), 1046 states have internal predecessors, (1505), 222 states have call successors, (222), 89 states have call predecessors, (222), 93 states have return successors, (241), 218 states have call predecessors, (241), 220 states have call successors, (241) [2022-07-13 17:46:44,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1341 states to 1341 states and 1968 transitions. [2022-07-13 17:46:44,377 INFO L78 Accepts]: Start accepts. Automaton has 1341 states and 1968 transitions. Word has length 217 [2022-07-13 17:46:44,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:46:44,379 INFO L495 AbstractCegarLoop]: Abstraction has 1341 states and 1968 transitions. [2022-07-13 17:46:44,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 12.9) internal successors, (129), 8 states have internal predecessors, (129), 4 states have call successors, (36), 6 states have call predecessors, (36), 3 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) [2022-07-13 17:46:44,380 INFO L276 IsEmpty]: Start isEmpty. Operand 1341 states and 1968 transitions. [2022-07-13 17:46:44,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-07-13 17:46:44,386 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:46:44,386 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:46:44,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-13 17:46:44,386 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:46:44,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:46:44,387 INFO L85 PathProgramCache]: Analyzing trace with hash 885850655, now seen corresponding path program 2 times [2022-07-13 17:46:44,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:46:44,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11288883] [2022-07-13 17:46:44,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:46:44,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:46:44,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:44,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 17:46:44,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:44,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:46:44,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:44,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 17:46:44,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:44,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:46:44,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:44,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 17:46:44,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:44,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-13 17:46:44,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:44,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-13 17:46:44,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:44,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-13 17:46:44,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:44,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-13 17:46:44,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:44,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:46:44,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:44,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 17:46:44,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:44,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-13 17:46:44,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:44,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:46:44,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:44,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-13 17:46:44,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:44,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-13 17:46:44,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:44,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:46:44,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:44,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-13 17:46:44,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:44,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-13 17:46:44,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:44,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-13 17:46:44,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:44,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-13 17:46:44,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:44,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-13 17:46:44,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:44,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-07-13 17:46:44,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:44,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-13 17:46:44,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:44,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:46:44,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:44,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-07-13 17:46:44,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:44,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-07-13 17:46:44,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:44,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2022-07-13 17:46:44,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:44,558 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2022-07-13 17:46:44,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:46:44,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11288883] [2022-07-13 17:46:44,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11288883] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:46:44,559 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:46:44,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-13 17:46:44,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862050664] [2022-07-13 17:46:44,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:46:44,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 17:46:44,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:46:44,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 17:46:44,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-07-13 17:46:44,561 INFO L87 Difference]: Start difference. First operand 1341 states and 1968 transitions. Second operand has 12 states, 10 states have (on average 13.0) internal successors, (130), 8 states have internal predecessors, (130), 4 states have call successors, (36), 6 states have call predecessors, (36), 3 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) [2022-07-13 17:46:47,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:46:47,430 INFO L93 Difference]: Finished difference Result 2817 states and 4275 transitions. [2022-07-13 17:46:47,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-13 17:46:47,431 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 13.0) internal successors, (130), 8 states have internal predecessors, (130), 4 states have call successors, (36), 6 states have call predecessors, (36), 3 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) Word has length 218 [2022-07-13 17:46:47,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:46:47,440 INFO L225 Difference]: With dead ends: 2817 [2022-07-13 17:46:47,440 INFO L226 Difference]: Without dead ends: 1593 [2022-07-13 17:46:47,444 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=478, Unknown=0, NotChecked=0, Total=600 [2022-07-13 17:46:47,445 INFO L413 NwaCegarLoop]: 860 mSDtfsCounter, 2145 mSDsluCounter, 1935 mSDsCounter, 0 mSdLazyCounter, 5160 mSolverCounterSat, 904 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2145 SdHoareTripleChecker+Valid, 2795 SdHoareTripleChecker+Invalid, 6064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 904 IncrementalHoareTripleChecker+Valid, 5160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-07-13 17:46:47,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2145 Valid, 2795 Invalid, 6064 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [904 Valid, 5160 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-07-13 17:46:47,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1593 states. [2022-07-13 17:46:47,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1593 to 1345. [2022-07-13 17:46:47,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1345 states, 1027 states have (on average 1.4673807205452776) internal successors, (1507), 1050 states have internal predecessors, (1507), 222 states have call successors, (222), 89 states have call predecessors, (222), 95 states have return successors, (245), 218 states have call predecessors, (245), 220 states have call successors, (245) [2022-07-13 17:46:47,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1345 states to 1345 states and 1974 transitions. [2022-07-13 17:46:47,529 INFO L78 Accepts]: Start accepts. Automaton has 1345 states and 1974 transitions. Word has length 218 [2022-07-13 17:46:47,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:46:47,530 INFO L495 AbstractCegarLoop]: Abstraction has 1345 states and 1974 transitions. [2022-07-13 17:46:47,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 13.0) internal successors, (130), 8 states have internal predecessors, (130), 4 states have call successors, (36), 6 states have call predecessors, (36), 3 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) [2022-07-13 17:46:47,530 INFO L276 IsEmpty]: Start isEmpty. Operand 1345 states and 1974 transitions. [2022-07-13 17:46:47,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-07-13 17:46:47,536 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:46:47,536 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:46:47,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-13 17:46:47,537 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:46:47,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:46:47,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1484316835, now seen corresponding path program 1 times [2022-07-13 17:46:47,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:46:47,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495000562] [2022-07-13 17:46:47,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:46:47,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:46:47,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:47,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 17:46:47,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:47,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:46:47,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:47,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 17:46:47,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:47,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:46:47,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:47,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 17:46:47,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:47,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-13 17:46:47,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:47,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-13 17:46:47,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:47,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-13 17:46:47,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:47,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-13 17:46:47,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:47,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:46:47,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:47,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 17:46:47,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:47,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-13 17:46:47,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:47,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:46:47,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:47,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-13 17:46:47,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:47,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-13 17:46:47,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:47,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:46:47,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:47,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-13 17:46:47,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:47,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-13 17:46:47,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:47,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-13 17:46:47,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:47,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-13 17:46:47,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:47,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-13 17:46:47,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:47,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-07-13 17:46:47,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:47,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-13 17:46:47,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:47,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:46:47,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:47,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-13 17:46:47,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:47,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-07-13 17:46:47,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:47,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-07-13 17:46:47,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:47,727 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2022-07-13 17:46:47,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:46:47,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495000562] [2022-07-13 17:46:47,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495000562] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:46:47,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:46:47,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-13 17:46:47,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917213842] [2022-07-13 17:46:47,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:46:47,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-13 17:46:47,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:46:47,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-13 17:46:47,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2022-07-13 17:46:47,730 INFO L87 Difference]: Start difference. First operand 1345 states and 1974 transitions. Second operand has 13 states, 11 states have (on average 12.181818181818182) internal successors, (134), 8 states have internal predecessors, (134), 4 states have call successors, (36), 6 states have call predecessors, (36), 4 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2022-07-13 17:46:51,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:46:51,155 INFO L93 Difference]: Finished difference Result 3257 states and 5013 transitions. [2022-07-13 17:46:51,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-13 17:46:51,155 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 12.181818181818182) internal successors, (134), 8 states have internal predecessors, (134), 4 states have call successors, (36), 6 states have call predecessors, (36), 4 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) Word has length 219 [2022-07-13 17:46:51,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:46:51,165 INFO L225 Difference]: With dead ends: 3257 [2022-07-13 17:46:51,165 INFO L226 Difference]: Without dead ends: 2039 [2022-07-13 17:46:51,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=141, Invalid=561, Unknown=0, NotChecked=0, Total=702 [2022-07-13 17:46:51,169 INFO L413 NwaCegarLoop]: 1051 mSDtfsCounter, 1998 mSDsluCounter, 4362 mSDsCounter, 0 mSdLazyCounter, 6192 mSolverCounterSat, 898 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2019 SdHoareTripleChecker+Valid, 5413 SdHoareTripleChecker+Invalid, 7090 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 898 IncrementalHoareTripleChecker+Valid, 6192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-07-13 17:46:51,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2019 Valid, 5413 Invalid, 7090 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [898 Valid, 6192 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-07-13 17:46:51,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2039 states. [2022-07-13 17:46:51,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2039 to 1355. [2022-07-13 17:46:51,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1355 states, 1031 states have (on average 1.4655674102812803) internal successors, (1511), 1056 states have internal predecessors, (1511), 224 states have call successors, (224), 89 states have call predecessors, (224), 99 states have return successors, (255), 222 states have call predecessors, (255), 222 states have call successors, (255) [2022-07-13 17:46:51,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1355 states to 1355 states and 1990 transitions. [2022-07-13 17:46:51,263 INFO L78 Accepts]: Start accepts. Automaton has 1355 states and 1990 transitions. Word has length 219 [2022-07-13 17:46:51,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:46:51,263 INFO L495 AbstractCegarLoop]: Abstraction has 1355 states and 1990 transitions. [2022-07-13 17:46:51,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 12.181818181818182) internal successors, (134), 8 states have internal predecessors, (134), 4 states have call successors, (36), 6 states have call predecessors, (36), 4 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2022-07-13 17:46:51,264 INFO L276 IsEmpty]: Start isEmpty. Operand 1355 states and 1990 transitions. [2022-07-13 17:46:51,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-07-13 17:46:51,268 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:46:51,268 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:46:51,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-13 17:46:51,269 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:46:51,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:46:51,269 INFO L85 PathProgramCache]: Analyzing trace with hash 202144549, now seen corresponding path program 1 times [2022-07-13 17:46:51,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:46:51,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448320150] [2022-07-13 17:46:51,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:46:51,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:46:51,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:51,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 17:46:51,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:51,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:46:51,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:51,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 17:46:51,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:51,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:46:51,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:51,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 17:46:51,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:51,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-13 17:46:51,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:51,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-13 17:46:51,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:51,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-13 17:46:51,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:51,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-13 17:46:51,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:51,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:46:51,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:51,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 17:46:51,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:51,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-13 17:46:51,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:51,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:46:51,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:51,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-13 17:46:51,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:51,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-13 17:46:51,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:51,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:46:51,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:51,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-13 17:46:51,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:51,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-13 17:46:51,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:51,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-13 17:46:51,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:51,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-13 17:46:51,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:51,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-13 17:46:51,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:51,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-07-13 17:46:51,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:51,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-13 17:46:51,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:51,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:46:51,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:51,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-13 17:46:51,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:51,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-07-13 17:46:51,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:51,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-07-13 17:46:51,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:51,427 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2022-07-13 17:46:51,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:46:51,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448320150] [2022-07-13 17:46:51,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448320150] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:46:51,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:46:51,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-13 17:46:51,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196541509] [2022-07-13 17:46:51,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:46:51,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 17:46:51,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:46:51,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 17:46:51,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-07-13 17:46:51,430 INFO L87 Difference]: Start difference. First operand 1355 states and 1990 transitions. Second operand has 12 states, 10 states have (on average 13.1) internal successors, (131), 8 states have internal predecessors, (131), 4 states have call successors, (36), 6 states have call predecessors, (36), 3 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) [2022-07-13 17:46:54,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:46:54,389 INFO L93 Difference]: Finished difference Result 2813 states and 4267 transitions. [2022-07-13 17:46:54,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-13 17:46:54,389 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 13.1) internal successors, (131), 8 states have internal predecessors, (131), 4 states have call successors, (36), 6 states have call predecessors, (36), 3 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) Word has length 219 [2022-07-13 17:46:54,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:46:54,396 INFO L225 Difference]: With dead ends: 2813 [2022-07-13 17:46:54,397 INFO L226 Difference]: Without dead ends: 1589 [2022-07-13 17:46:54,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=146, Invalid=504, Unknown=0, NotChecked=0, Total=650 [2022-07-13 17:46:54,400 INFO L413 NwaCegarLoop]: 855 mSDtfsCounter, 2155 mSDsluCounter, 1935 mSDsCounter, 0 mSdLazyCounter, 5118 mSolverCounterSat, 911 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2155 SdHoareTripleChecker+Valid, 2790 SdHoareTripleChecker+Invalid, 6029 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 911 IncrementalHoareTripleChecker+Valid, 5118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-07-13 17:46:54,401 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2155 Valid, 2790 Invalid, 6029 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [911 Valid, 5118 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-07-13 17:46:54,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1589 states. [2022-07-13 17:46:54,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1589 to 1345. [2022-07-13 17:46:54,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1345 states, 1027 states have (on average 1.4673807205452776) internal successors, (1507), 1050 states have internal predecessors, (1507), 222 states have call successors, (222), 89 states have call predecessors, (222), 95 states have return successors, (243), 218 states have call predecessors, (243), 220 states have call successors, (243) [2022-07-13 17:46:54,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1345 states to 1345 states and 1972 transitions. [2022-07-13 17:46:54,487 INFO L78 Accepts]: Start accepts. Automaton has 1345 states and 1972 transitions. Word has length 219 [2022-07-13 17:46:54,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:46:54,488 INFO L495 AbstractCegarLoop]: Abstraction has 1345 states and 1972 transitions. [2022-07-13 17:46:54,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 13.1) internal successors, (131), 8 states have internal predecessors, (131), 4 states have call successors, (36), 6 states have call predecessors, (36), 3 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) [2022-07-13 17:46:54,488 INFO L276 IsEmpty]: Start isEmpty. Operand 1345 states and 1972 transitions. [2022-07-13 17:46:54,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2022-07-13 17:46:54,493 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:46:54,493 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:46:54,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-13 17:46:54,493 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:46:54,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:46:54,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1528973982, now seen corresponding path program 2 times [2022-07-13 17:46:54,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:46:54,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551171446] [2022-07-13 17:46:54,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:46:54,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:46:54,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:54,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 17:46:54,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:54,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:46:54,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:54,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 17:46:54,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:54,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:46:54,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:54,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 17:46:54,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:54,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-13 17:46:54,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:54,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-13 17:46:54,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:54,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-13 17:46:54,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:54,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-13 17:46:54,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:54,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:46:54,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:54,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 17:46:54,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:54,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-13 17:46:54,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:54,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:46:54,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:54,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-13 17:46:54,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:54,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-13 17:46:54,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:54,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:46:54,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:54,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-13 17:46:54,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:54,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-13 17:46:54,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:54,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-13 17:46:54,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:54,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-13 17:46:54,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:54,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-07-13 17:46:54,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:54,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-13 17:46:54,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:54,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-07-13 17:46:54,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:54,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:46:54,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:54,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-13 17:46:54,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:54,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-13 17:46:54,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:54,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-07-13 17:46:54,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:54,660 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2022-07-13 17:46:54,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:46:54,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551171446] [2022-07-13 17:46:54,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551171446] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:46:54,661 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:46:54,661 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-13 17:46:54,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13717801] [2022-07-13 17:46:54,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:46:54,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-13 17:46:54,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:46:54,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-13 17:46:54,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2022-07-13 17:46:54,663 INFO L87 Difference]: Start difference. First operand 1345 states and 1972 transitions. Second operand has 13 states, 11 states have (on average 12.272727272727273) internal successors, (135), 8 states have internal predecessors, (135), 4 states have call successors, (36), 6 states have call predecessors, (36), 4 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2022-07-13 17:46:57,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:46:57,783 INFO L93 Difference]: Finished difference Result 2811 states and 4269 transitions. [2022-07-13 17:46:57,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-13 17:46:57,783 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 12.272727272727273) internal successors, (135), 8 states have internal predecessors, (135), 4 states have call successors, (36), 6 states have call predecessors, (36), 4 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) Word has length 220 [2022-07-13 17:46:57,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:46:57,791 INFO L225 Difference]: With dead ends: 2811 [2022-07-13 17:46:57,791 INFO L226 Difference]: Without dead ends: 1593 [2022-07-13 17:46:57,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=141, Invalid=561, Unknown=0, NotChecked=0, Total=702 [2022-07-13 17:46:57,796 INFO L413 NwaCegarLoop]: 851 mSDtfsCounter, 1954 mSDsluCounter, 2358 mSDsCounter, 0 mSdLazyCounter, 6006 mSolverCounterSat, 860 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1973 SdHoareTripleChecker+Valid, 3209 SdHoareTripleChecker+Invalid, 6866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 860 IncrementalHoareTripleChecker+Valid, 6006 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-07-13 17:46:57,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1973 Valid, 3209 Invalid, 6866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [860 Valid, 6006 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-07-13 17:46:57,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1593 states. [2022-07-13 17:46:57,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1593 to 1349. [2022-07-13 17:46:57,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1349 states, 1029 states have (on average 1.466472303206997) internal successors, (1509), 1054 states have internal predecessors, (1509), 222 states have call successors, (222), 89 states have call predecessors, (222), 97 states have return successors, (253), 218 states have call predecessors, (253), 220 states have call successors, (253) [2022-07-13 17:46:57,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1349 states to 1349 states and 1984 transitions. [2022-07-13 17:46:57,888 INFO L78 Accepts]: Start accepts. Automaton has 1349 states and 1984 transitions. Word has length 220 [2022-07-13 17:46:57,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:46:57,889 INFO L495 AbstractCegarLoop]: Abstraction has 1349 states and 1984 transitions. [2022-07-13 17:46:57,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 12.272727272727273) internal successors, (135), 8 states have internal predecessors, (135), 4 states have call successors, (36), 6 states have call predecessors, (36), 4 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2022-07-13 17:46:57,889 INFO L276 IsEmpty]: Start isEmpty. Operand 1349 states and 1984 transitions. [2022-07-13 17:46:57,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2022-07-13 17:46:57,894 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:46:57,895 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:46:57,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-13 17:46:57,895 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:46:57,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:46:57,896 INFO L85 PathProgramCache]: Analyzing trace with hash 726682078, now seen corresponding path program 1 times [2022-07-13 17:46:57,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:46:57,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361752558] [2022-07-13 17:46:57,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:46:57,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:46:57,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:57,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 17:46:57,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:57,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:46:57,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:57,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 17:46:57,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:57,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:46:57,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:57,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 17:46:57,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:57,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-13 17:46:57,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:57,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-13 17:46:57,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:57,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-13 17:46:57,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:57,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-13 17:46:57,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:57,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:46:57,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:57,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 17:46:57,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:57,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-13 17:46:57,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:57,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:46:57,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:57,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-13 17:46:57,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:57,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-13 17:46:57,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:58,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:46:58,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:58,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-13 17:46:58,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:58,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-13 17:46:58,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:58,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-13 17:46:58,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:58,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-13 17:46:58,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:58,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-13 17:46:58,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:58,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-13 17:46:58,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:58,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-13 17:46:58,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:58,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:46:58,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:58,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-07-13 17:46:58,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:58,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-13 17:46:58,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:58,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-13 17:46:58,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:58,030 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-07-13 17:46:58,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:46:58,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361752558] [2022-07-13 17:46:58,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361752558] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 17:46:58,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [128225151] [2022-07-13 17:46:58,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:46:58,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:46:58,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 17:46:58,036 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) [2022-07-13 17:46:58,038 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-13 17:46:58,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:46:58,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 1675 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 17:46:58,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 17:46:58,390 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-07-13 17:46:58,390 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 17:46:58,525 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-07-13 17:46:58,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [128225151] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 17:46:58,525 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 17:46:58,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2022-07-13 17:46:58,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828416183] [2022-07-13 17:46:58,526 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 17:46:58,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-13 17:46:58,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:46:58,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-13 17:46:58,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-07-13 17:46:58,529 INFO L87 Difference]: Start difference. First operand 1349 states and 1984 transitions. Second operand has 11 states, 11 states have (on average 16.545454545454547) internal successors, (182), 7 states have internal predecessors, (182), 2 states have call successors, (58), 6 states have call predecessors, (58), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-07-13 17:47:00,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:47:00,706 INFO L93 Difference]: Finished difference Result 3359 states and 5247 transitions. [2022-07-13 17:47:00,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-13 17:47:00,707 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 16.545454545454547) internal successors, (182), 7 states have internal predecessors, (182), 2 states have call successors, (58), 6 states have call predecessors, (58), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 221 [2022-07-13 17:47:00,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:47:00,720 INFO L225 Difference]: With dead ends: 3359 [2022-07-13 17:47:00,720 INFO L226 Difference]: Without dead ends: 2719 [2022-07-13 17:47:00,723 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 508 GetRequests, 493 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2022-07-13 17:47:00,723 INFO L413 NwaCegarLoop]: 950 mSDtfsCounter, 2745 mSDsluCounter, 1895 mSDsCounter, 0 mSdLazyCounter, 2497 mSolverCounterSat, 1109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2802 SdHoareTripleChecker+Valid, 2845 SdHoareTripleChecker+Invalid, 3606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1109 IncrementalHoareTripleChecker+Valid, 2497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-07-13 17:47:00,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2802 Valid, 2845 Invalid, 3606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1109 Valid, 2497 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-07-13 17:47:00,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2719 states. [2022-07-13 17:47:00,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2719 to 2427. [2022-07-13 17:47:00,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2427 states, 1949 states have (on average 1.517188301693176) internal successors, (2957), 1974 states have internal predecessors, (2957), 380 states have call successors, (380), 89 states have call predecessors, (380), 97 states have return successors, (431), 376 states have call predecessors, (431), 378 states have call successors, (431) [2022-07-13 17:47:00,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2427 states to 2427 states and 3768 transitions. [2022-07-13 17:47:00,888 INFO L78 Accepts]: Start accepts. Automaton has 2427 states and 3768 transitions. Word has length 221 [2022-07-13 17:47:00,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:47:00,889 INFO L495 AbstractCegarLoop]: Abstraction has 2427 states and 3768 transitions. [2022-07-13 17:47:00,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 16.545454545454547) internal successors, (182), 7 states have internal predecessors, (182), 2 states have call successors, (58), 6 states have call predecessors, (58), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-07-13 17:47:00,889 INFO L276 IsEmpty]: Start isEmpty. Operand 2427 states and 3768 transitions. [2022-07-13 17:47:00,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-07-13 17:47:00,925 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:47:00,925 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:47:00,956 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-13 17:47:01,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-07-13 17:47:01,126 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:47:01,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:47:01,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1729862366, now seen corresponding path program 1 times [2022-07-13 17:47:01,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:47:01,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859499872] [2022-07-13 17:47:01,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:47:01,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:47:01,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:01,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 17:47:01,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:01,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:47:01,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:01,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 17:47:01,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:01,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:47:01,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:01,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 17:47:01,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:01,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-13 17:47:01,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:01,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-13 17:47:01,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:01,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-13 17:47:01,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:01,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-13 17:47:01,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:01,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:47:01,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:01,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 17:47:01,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:01,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-13 17:47:01,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:01,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:47:01,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:01,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-13 17:47:01,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:01,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-13 17:47:01,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:01,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:47:01,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:01,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-13 17:47:01,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:01,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-13 17:47:01,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:01,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-13 17:47:01,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:01,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-13 17:47:01,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:01,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-07-13 17:47:01,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:01,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-13 17:47:01,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:01,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-13 17:47:01,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:01,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:47:01,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:01,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-07-13 17:47:01,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:01,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-07-13 17:47:01,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:01,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-07-13 17:47:01,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:01,261 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-07-13 17:47:01,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:47:01,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859499872] [2022-07-13 17:47:01,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859499872] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:47:01,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:47:01,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 17:47:01,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697942652] [2022-07-13 17:47:01,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:47:01,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 17:47:01,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:47:01,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 17:47:01,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 17:47:01,266 INFO L87 Difference]: Start difference. First operand 2427 states and 3768 transitions. Second operand has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 3 states have internal predecessors, (135), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-13 17:47:03,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:47:03,121 INFO L93 Difference]: Finished difference Result 5873 states and 9407 transitions. [2022-07-13 17:47:03,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-13 17:47:03,122 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 3 states have internal predecessors, (135), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 225 [2022-07-13 17:47:03,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:47:03,137 INFO L225 Difference]: With dead ends: 5873 [2022-07-13 17:47:03,138 INFO L226 Difference]: Without dead ends: 3689 [2022-07-13 17:47:03,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-13 17:47:03,145 INFO L413 NwaCegarLoop]: 898 mSDtfsCounter, 1961 mSDsluCounter, 1089 mSDsCounter, 0 mSdLazyCounter, 1409 mSolverCounterSat, 913 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1979 SdHoareTripleChecker+Valid, 1987 SdHoareTripleChecker+Invalid, 2322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 913 IncrementalHoareTripleChecker+Valid, 1409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-13 17:47:03,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1979 Valid, 1987 Invalid, 2322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [913 Valid, 1409 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-13 17:47:03,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3689 states. [2022-07-13 17:47:03,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3689 to 3429. [2022-07-13 17:47:03,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3429 states, 2793 states have (on average 1.5284640171858217) internal successors, (4269), 2818 states have internal predecessors, (4269), 538 states have call successors, (538), 89 states have call predecessors, (538), 97 states have return successors, (609), 534 states have call predecessors, (609), 536 states have call successors, (609) [2022-07-13 17:47:03,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3429 states to 3429 states and 5416 transitions. [2022-07-13 17:47:03,366 INFO L78 Accepts]: Start accepts. Automaton has 3429 states and 5416 transitions. Word has length 225 [2022-07-13 17:47:03,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:47:03,367 INFO L495 AbstractCegarLoop]: Abstraction has 3429 states and 5416 transitions. [2022-07-13 17:47:03,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 3 states have internal predecessors, (135), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-13 17:47:03,367 INFO L276 IsEmpty]: Start isEmpty. Operand 3429 states and 5416 transitions. [2022-07-13 17:47:03,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2022-07-13 17:47:03,382 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:47:03,382 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:47:03,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-13 17:47:03,382 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:47:03,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:47:03,383 INFO L85 PathProgramCache]: Analyzing trace with hash 706215495, now seen corresponding path program 1 times [2022-07-13 17:47:03,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:47:03,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085554258] [2022-07-13 17:47:03,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:47:03,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:47:03,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:03,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 17:47:03,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:03,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:47:03,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:03,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 17:47:03,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:03,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:47:03,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:03,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 17:47:03,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:03,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-13 17:47:03,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:03,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-13 17:47:03,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:03,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-13 17:47:03,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:03,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-13 17:47:03,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:03,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:47:03,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:03,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 17:47:03,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:03,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-13 17:47:03,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:03,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:47:03,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:03,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-13 17:47:03,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:03,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-13 17:47:03,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:03,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:47:03,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:03,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-13 17:47:03,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:03,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-13 17:47:03,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:03,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-13 17:47:03,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:03,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-13 17:47:03,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:03,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-13 17:47:03,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:03,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-13 17:47:03,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:03,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-13 17:47:03,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:03,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:47:03,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:03,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-07-13 17:47:03,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:03,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-07-13 17:47:03,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:03,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2022-07-13 17:47:03,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:03,534 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-07-13 17:47:03,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:47:03,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085554258] [2022-07-13 17:47:03,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085554258] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:47:03,535 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:47:03,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 17:47:03,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920806544] [2022-07-13 17:47:03,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:47:03,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 17:47:03,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:47:03,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 17:47:03,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 17:47:03,538 INFO L87 Difference]: Start difference. First operand 3429 states and 5416 transitions. Second operand has 7 states, 7 states have (on average 19.428571428571427) internal successors, (136), 3 states have internal predecessors, (136), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-13 17:47:05,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:47:05,316 INFO L93 Difference]: Finished difference Result 8367 states and 13521 transitions. [2022-07-13 17:47:05,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-13 17:47:05,317 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.428571428571427) internal successors, (136), 3 states have internal predecessors, (136), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 226 [2022-07-13 17:47:05,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:47:05,340 INFO L225 Difference]: With dead ends: 8367 [2022-07-13 17:47:05,340 INFO L226 Difference]: Without dead ends: 5307 [2022-07-13 17:47:05,350 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-13 17:47:05,350 INFO L413 NwaCegarLoop]: 886 mSDtfsCounter, 1976 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 1360 mSolverCounterSat, 937 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1994 SdHoareTripleChecker+Valid, 1958 SdHoareTripleChecker+Invalid, 2297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 937 IncrementalHoareTripleChecker+Valid, 1360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-13 17:47:05,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1994 Valid, 1958 Invalid, 2297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [937 Valid, 1360 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-13 17:47:05,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5307 states. [2022-07-13 17:47:05,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5307 to 5047. [2022-07-13 17:47:05,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5047 states, 4173 states have (on average 1.5406182602444285) internal successors, (6429), 4198 states have internal predecessors, (6429), 776 states have call successors, (776), 89 states have call predecessors, (776), 97 states have return successors, (847), 772 states have call predecessors, (847), 774 states have call successors, (847) [2022-07-13 17:47:05,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5047 states to 5047 states and 8052 transitions. [2022-07-13 17:47:05,684 INFO L78 Accepts]: Start accepts. Automaton has 5047 states and 8052 transitions. Word has length 226 [2022-07-13 17:47:05,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:47:05,685 INFO L495 AbstractCegarLoop]: Abstraction has 5047 states and 8052 transitions. [2022-07-13 17:47:05,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.428571428571427) internal successors, (136), 3 states have internal predecessors, (136), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-13 17:47:05,685 INFO L276 IsEmpty]: Start isEmpty. Operand 5047 states and 8052 transitions. [2022-07-13 17:47:05,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-07-13 17:47:05,709 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:47:05,717 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:47:05,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-13 17:47:05,718 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:47:05,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:47:05,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1370779497, now seen corresponding path program 1 times [2022-07-13 17:47:05,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:47:05,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956352036] [2022-07-13 17:47:05,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:47:05,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:47:05,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:05,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 17:47:05,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:05,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:47:05,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:05,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 17:47:05,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:05,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:47:05,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:05,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 17:47:05,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:05,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-13 17:47:05,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:05,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-13 17:47:05,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:05,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-13 17:47:05,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:05,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-13 17:47:05,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:05,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:47:05,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:05,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 17:47:05,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:05,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-13 17:47:05,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:05,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:47:05,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:05,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-13 17:47:05,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:05,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-13 17:47:05,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:05,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:47:05,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:05,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-13 17:47:05,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:05,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-13 17:47:05,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:05,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-13 17:47:05,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:05,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-13 17:47:05,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:05,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-13 17:47:05,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:05,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-07-13 17:47:05,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:05,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-13 17:47:05,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:05,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:47:05,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:05,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-13 17:47:05,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:05,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-13 17:47:05,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:05,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-13 17:47:05,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:05,861 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-07-13 17:47:05,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:47:05,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956352036] [2022-07-13 17:47:05,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956352036] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:47:05,861 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:47:05,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 17:47:05,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936851964] [2022-07-13 17:47:05,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:47:05,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 17:47:05,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:47:05,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 17:47:05,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 17:47:05,864 INFO L87 Difference]: Start difference. First operand 5047 states and 8052 transitions. Second operand has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 3 states have internal predecessors, (137), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-13 17:47:07,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:47:07,705 INFO L93 Difference]: Finished difference Result 12165 states and 19835 transitions. [2022-07-13 17:47:07,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-13 17:47:07,706 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 3 states have internal predecessors, (137), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 227 [2022-07-13 17:47:07,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:47:07,740 INFO L225 Difference]: With dead ends: 12165 [2022-07-13 17:47:07,740 INFO L226 Difference]: Without dead ends: 7801 [2022-07-13 17:47:07,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-13 17:47:07,757 INFO L413 NwaCegarLoop]: 881 mSDtfsCounter, 1964 mSDsluCounter, 1071 mSDsCounter, 0 mSdLazyCounter, 1372 mSolverCounterSat, 912 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1982 SdHoareTripleChecker+Valid, 1952 SdHoareTripleChecker+Invalid, 2284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 912 IncrementalHoareTripleChecker+Valid, 1372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-13 17:47:07,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1982 Valid, 1952 Invalid, 2284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [912 Valid, 1372 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-13 17:47:07,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7801 states. [2022-07-13 17:47:08,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7801 to 7541. [2022-07-13 17:47:08,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7541 states, 6343 states have (on average 1.5508434494718588) internal successors, (9837), 6368 states have internal predecessors, (9837), 1100 states have call successors, (1100), 89 states have call predecessors, (1100), 97 states have return successors, (1203), 1096 states have call predecessors, (1203), 1098 states have call successors, (1203) [2022-07-13 17:47:08,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7541 states to 7541 states and 12140 transitions. [2022-07-13 17:47:08,251 INFO L78 Accepts]: Start accepts. Automaton has 7541 states and 12140 transitions. Word has length 227 [2022-07-13 17:47:08,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:47:08,251 INFO L495 AbstractCegarLoop]: Abstraction has 7541 states and 12140 transitions. [2022-07-13 17:47:08,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 3 states have internal predecessors, (137), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-13 17:47:08,252 INFO L276 IsEmpty]: Start isEmpty. Operand 7541 states and 12140 transitions. [2022-07-13 17:47:08,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2022-07-13 17:47:08,286 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:47:08,286 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:47:08,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-13 17:47:08,287 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:47:08,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:47:08,287 INFO L85 PathProgramCache]: Analyzing trace with hash 591874569, now seen corresponding path program 1 times [2022-07-13 17:47:08,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:47:08,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897510904] [2022-07-13 17:47:08,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:47:08,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:47:08,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:08,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 17:47:08,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:08,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:47:08,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:08,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 17:47:08,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:08,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:47:08,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:08,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 17:47:08,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:08,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-13 17:47:08,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:08,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-13 17:47:08,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:08,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-13 17:47:08,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:08,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-13 17:47:08,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:08,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:47:08,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:08,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 17:47:08,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:08,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-13 17:47:08,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:08,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:47:08,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:08,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-13 17:47:08,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:08,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-13 17:47:08,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:08,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:47:08,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:08,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-13 17:47:08,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:08,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-13 17:47:08,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:08,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-13 17:47:08,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:08,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-13 17:47:08,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:08,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-13 17:47:08,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:08,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-13 17:47:08,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:08,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-13 17:47:08,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:08,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:47:08,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:08,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-13 17:47:08,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:08,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-07-13 17:47:08,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:08,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-13 17:47:08,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:08,409 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-07-13 17:47:08,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:47:08,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897510904] [2022-07-13 17:47:08,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897510904] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:47:08,409 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:47:08,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 17:47:08,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638564473] [2022-07-13 17:47:08,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:47:08,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 17:47:08,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:47:08,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 17:47:08,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 17:47:08,411 INFO L87 Difference]: Start difference. First operand 7541 states and 12140 transitions. Second operand has 7 states, 7 states have (on average 19.714285714285715) internal successors, (138), 3 states have internal predecessors, (138), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-13 17:47:10,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:47:10,465 INFO L93 Difference]: Finished difference Result 18169 states and 29853 transitions. [2022-07-13 17:47:10,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-13 17:47:10,466 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.714285714285715) internal successors, (138), 3 states have internal predecessors, (138), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 228 [2022-07-13 17:47:10,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:47:10,509 INFO L225 Difference]: With dead ends: 18169 [2022-07-13 17:47:10,509 INFO L226 Difference]: Without dead ends: 11829 [2022-07-13 17:47:10,531 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-13 17:47:10,533 INFO L413 NwaCegarLoop]: 881 mSDtfsCounter, 1955 mSDsluCounter, 1071 mSDsCounter, 0 mSdLazyCounter, 1361 mSolverCounterSat, 905 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1973 SdHoareTripleChecker+Valid, 1952 SdHoareTripleChecker+Invalid, 2266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 905 IncrementalHoareTripleChecker+Valid, 1361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-13 17:47:10,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1973 Valid, 1952 Invalid, 2266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [905 Valid, 1361 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-13 17:47:10,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11829 states. [2022-07-13 17:47:11,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11829 to 11569. [2022-07-13 17:47:11,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11569 states, 9881 states have (on average 1.5594575447829166) internal successors, (15409), 9906 states have internal predecessors, (15409), 1590 states have call successors, (1590), 89 states have call predecessors, (1590), 97 states have return successors, (1745), 1586 states have call predecessors, (1745), 1588 states have call successors, (1745) [2022-07-13 17:47:11,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11569 states to 11569 states and 18744 transitions. [2022-07-13 17:47:11,237 INFO L78 Accepts]: Start accepts. Automaton has 11569 states and 18744 transitions. Word has length 228 [2022-07-13 17:47:11,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:47:11,237 INFO L495 AbstractCegarLoop]: Abstraction has 11569 states and 18744 transitions. [2022-07-13 17:47:11,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.714285714285715) internal successors, (138), 3 states have internal predecessors, (138), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-13 17:47:11,237 INFO L276 IsEmpty]: Start isEmpty. Operand 11569 states and 18744 transitions. [2022-07-13 17:47:11,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-07-13 17:47:11,266 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:47:11,266 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:47:11,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-13 17:47:11,267 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:47:11,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:47:11,267 INFO L85 PathProgramCache]: Analyzing trace with hash -1721161890, now seen corresponding path program 1 times [2022-07-13 17:47:11,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:47:11,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222734308] [2022-07-13 17:47:11,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:47:11,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:47:11,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:11,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 17:47:11,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:11,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:47:11,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:11,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 17:47:11,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:11,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:47:11,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:11,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 17:47:11,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:11,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-13 17:47:11,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:11,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-13 17:47:11,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:11,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-13 17:47:11,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:11,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-13 17:47:11,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:11,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:47:11,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:11,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 17:47:11,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:11,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-13 17:47:11,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:11,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:47:11,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:11,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-13 17:47:11,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:11,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-13 17:47:11,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:11,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:47:11,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:11,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-13 17:47:11,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:11,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-13 17:47:11,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:11,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-13 17:47:11,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:11,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-13 17:47:11,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:11,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-13 17:47:11,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:11,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-13 17:47:11,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:11,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-13 17:47:11,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:11,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:47:11,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:11,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-07-13 17:47:11,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:11,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-07-13 17:47:11,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:11,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-07-13 17:47:11,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:11,389 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-07-13 17:47:11,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:47:11,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222734308] [2022-07-13 17:47:11,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222734308] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:47:11,390 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:47:11,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 17:47:11,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771226958] [2022-07-13 17:47:11,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:47:11,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 17:47:11,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:47:11,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 17:47:11,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 17:47:11,392 INFO L87 Difference]: Start difference. First operand 11569 states and 18744 transitions. Second operand has 7 states, 7 states have (on average 19.857142857142858) internal successors, (139), 3 states have internal predecessors, (139), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-13 17:47:13,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:47:13,559 INFO L93 Difference]: Finished difference Result 28155 states and 46449 transitions. [2022-07-13 17:47:13,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-13 17:47:13,561 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.857142857142858) internal successors, (139), 3 states have internal predecessors, (139), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 229 [2022-07-13 17:47:13,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:47:13,631 INFO L225 Difference]: With dead ends: 28155 [2022-07-13 17:47:13,632 INFO L226 Difference]: Without dead ends: 18579 [2022-07-13 17:47:13,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-13 17:47:13,659 INFO L413 NwaCegarLoop]: 896 mSDtfsCounter, 1950 mSDsluCounter, 1082 mSDsCounter, 0 mSdLazyCounter, 1405 mSolverCounterSat, 913 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1968 SdHoareTripleChecker+Valid, 1978 SdHoareTripleChecker+Invalid, 2318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 913 IncrementalHoareTripleChecker+Valid, 1405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-13 17:47:13,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1968 Valid, 1978 Invalid, 2318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [913 Valid, 1405 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-13 17:47:13,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18579 states. [2022-07-13 17:47:14,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18579 to 18319. [2022-07-13 17:47:14,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18319 states, 15645 states have (on average 1.5568552253116013) internal successors, (24357), 15670 states have internal predecessors, (24357), 2576 states have call successors, (2576), 89 states have call predecessors, (2576), 97 states have return successors, (2819), 2572 states have call predecessors, (2819), 2574 states have call successors, (2819) [2022-07-13 17:47:14,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18319 states to 18319 states and 29752 transitions. [2022-07-13 17:47:14,657 INFO L78 Accepts]: Start accepts. Automaton has 18319 states and 29752 transitions. Word has length 229 [2022-07-13 17:47:14,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:47:14,658 INFO L495 AbstractCegarLoop]: Abstraction has 18319 states and 29752 transitions. [2022-07-13 17:47:14,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.857142857142858) internal successors, (139), 3 states have internal predecessors, (139), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-13 17:47:14,658 INFO L276 IsEmpty]: Start isEmpty. Operand 18319 states and 29752 transitions. [2022-07-13 17:47:14,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2022-07-13 17:47:14,713 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:47:14,714 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:47:14,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-13 17:47:14,714 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:47:14,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:47:14,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1389275628, now seen corresponding path program 1 times [2022-07-13 17:47:14,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:47:14,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308921847] [2022-07-13 17:47:14,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:47:14,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:47:14,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:14,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 17:47:14,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:14,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:47:14,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:14,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 17:47:14,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:14,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:47:14,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:14,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 17:47:14,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:14,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-13 17:47:14,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:14,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-13 17:47:14,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:14,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-13 17:47:14,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:14,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-13 17:47:14,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:14,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:47:14,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:14,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 17:47:14,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:14,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-13 17:47:14,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:14,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:47:14,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:14,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-13 17:47:14,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:14,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-13 17:47:14,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:14,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:47:14,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:14,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-13 17:47:14,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:14,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-13 17:47:14,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:14,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-13 17:47:14,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:14,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-13 17:47:14,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:14,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-07-13 17:47:14,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:14,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-07-13 17:47:14,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:14,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2022-07-13 17:47:14,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:14,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:47:14,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:14,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-13 17:47:14,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:14,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-07-13 17:47:14,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:14,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2022-07-13 17:47:14,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:14,970 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-07-13 17:47:14,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:47:14,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308921847] [2022-07-13 17:47:14,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308921847] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:47:14,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:47:14,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 17:47:14,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384881794] [2022-07-13 17:47:14,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:47:14,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 17:47:14,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:47:14,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 17:47:14,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 17:47:14,972 INFO L87 Difference]: Start difference. First operand 18319 states and 29752 transitions. Second operand has 7 states, 7 states have (on average 20.0) internal successors, (140), 3 states have internal predecessors, (140), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-13 17:47:17,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:47:17,628 INFO L93 Difference]: Finished difference Result 46061 states and 76201 transitions. [2022-07-13 17:47:17,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-13 17:47:17,629 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 3 states have internal predecessors, (140), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 230 [2022-07-13 17:47:17,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:47:17,731 INFO L225 Difference]: With dead ends: 46061 [2022-07-13 17:47:17,731 INFO L226 Difference]: Without dead ends: 30727 [2022-07-13 17:47:17,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-13 17:47:17,778 INFO L413 NwaCegarLoop]: 886 mSDtfsCounter, 1951 mSDsluCounter, 1076 mSDsCounter, 0 mSdLazyCounter, 1383 mSolverCounterSat, 917 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1969 SdHoareTripleChecker+Valid, 1962 SdHoareTripleChecker+Invalid, 2300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 917 IncrementalHoareTripleChecker+Valid, 1383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-13 17:47:17,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1969 Valid, 1962 Invalid, 2300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [917 Valid, 1383 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-13 17:47:17,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30727 states. [2022-07-13 17:47:19,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30727 to 30467. [2022-07-13 17:47:19,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30467 states, 26149 states have (on average 1.5626218975869057) internal successors, (40861), 26174 states have internal predecessors, (40861), 4220 states have call successors, (4220), 89 states have call predecessors, (4220), 97 states have return successors, (4619), 4216 states have call predecessors, (4619), 4218 states have call successors, (4619) [2022-07-13 17:47:19,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30467 states to 30467 states and 49700 transitions. [2022-07-13 17:47:19,642 INFO L78 Accepts]: Start accepts. Automaton has 30467 states and 49700 transitions. Word has length 230 [2022-07-13 17:47:19,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:47:19,643 INFO L495 AbstractCegarLoop]: Abstraction has 30467 states and 49700 transitions. [2022-07-13 17:47:19,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 3 states have internal predecessors, (140), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-13 17:47:19,644 INFO L276 IsEmpty]: Start isEmpty. Operand 30467 states and 49700 transitions. [2022-07-13 17:47:19,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-07-13 17:47:19,726 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:47:19,727 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:47:19,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-07-13 17:47:19,727 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:47:19,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:47:19,727 INFO L85 PathProgramCache]: Analyzing trace with hash -299848699, now seen corresponding path program 1 times [2022-07-13 17:47:19,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:47:19,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852758370] [2022-07-13 17:47:19,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:47:19,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:47:19,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:19,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 17:47:19,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:19,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:47:19,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:19,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 17:47:19,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:19,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:47:19,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:19,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 17:47:19,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:19,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-13 17:47:19,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:19,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-13 17:47:19,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:19,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-13 17:47:19,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:19,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-13 17:47:19,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:19,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:47:19,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:19,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 17:47:19,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:19,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-13 17:47:19,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:19,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:47:19,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:19,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-13 17:47:19,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:19,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-13 17:47:19,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:19,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:47:19,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:19,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-13 17:47:19,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:19,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-13 17:47:19,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:19,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-13 17:47:19,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:19,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-07-13 17:47:19,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:19,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-13 17:47:19,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:19,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-13 17:47:19,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:19,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-13 17:47:19,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:19,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:47:19,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:19,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2022-07-13 17:47:19,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:19,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-07-13 17:47:19,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:19,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-07-13 17:47:19,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:19,844 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-07-13 17:47:19,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:47:19,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852758370] [2022-07-13 17:47:19,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852758370] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:47:19,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:47:19,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 17:47:19,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657137945] [2022-07-13 17:47:19,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:47:19,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 17:47:19,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:47:19,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 17:47:19,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 17:47:19,846 INFO L87 Difference]: Start difference. First operand 30467 states and 49700 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-13 17:47:23,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:47:23,248 INFO L93 Difference]: Finished difference Result 73679 states and 120969 transitions. [2022-07-13 17:47:23,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-13 17:47:23,248 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 231 [2022-07-13 17:47:23,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:47:23,396 INFO L225 Difference]: With dead ends: 73679 [2022-07-13 17:47:23,396 INFO L226 Difference]: Without dead ends: 48465 [2022-07-13 17:47:23,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-13 17:47:23,457 INFO L413 NwaCegarLoop]: 895 mSDtfsCounter, 1946 mSDsluCounter, 1074 mSDsCounter, 0 mSdLazyCounter, 1391 mSolverCounterSat, 902 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1964 SdHoareTripleChecker+Valid, 1969 SdHoareTripleChecker+Invalid, 2293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 902 IncrementalHoareTripleChecker+Valid, 1391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-13 17:47:23,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1964 Valid, 1969 Invalid, 2293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [902 Valid, 1391 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-13 17:47:23,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48465 states. [2022-07-13 17:47:25,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48465 to 48205. [2022-07-13 17:47:25,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48205 states, 41481 states have (on average 1.5355705021576143) internal successors, (63697), 41506 states have internal predecessors, (63697), 6626 states have call successors, (6626), 89 states have call predecessors, (6626), 97 states have return successors, (7313), 6622 states have call predecessors, (7313), 6624 states have call successors, (7313) [2022-07-13 17:47:26,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48205 states to 48205 states and 77636 transitions. [2022-07-13 17:47:26,024 INFO L78 Accepts]: Start accepts. Automaton has 48205 states and 77636 transitions. Word has length 231 [2022-07-13 17:47:26,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:47:26,024 INFO L495 AbstractCegarLoop]: Abstraction has 48205 states and 77636 transitions. [2022-07-13 17:47:26,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-13 17:47:26,025 INFO L276 IsEmpty]: Start isEmpty. Operand 48205 states and 77636 transitions. [2022-07-13 17:47:26,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-07-13 17:47:26,147 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:47:26,148 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:47:26,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-07-13 17:47:26,148 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:47:26,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:47:26,148 INFO L85 PathProgramCache]: Analyzing trace with hash 502362306, now seen corresponding path program 1 times [2022-07-13 17:47:26,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:47:26,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688495164] [2022-07-13 17:47:26,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:47:26,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:47:26,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:26,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 17:47:26,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:26,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:47:26,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:26,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 17:47:26,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:26,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:47:26,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:26,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 17:47:26,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:26,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-13 17:47:26,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:26,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-13 17:47:26,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:26,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-13 17:47:26,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:26,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-13 17:47:26,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:26,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:47:26,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:26,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 17:47:26,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:26,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-13 17:47:26,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:26,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:47:26,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:26,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-13 17:47:26,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:26,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-13 17:47:26,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:26,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:47:26,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:26,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-13 17:47:26,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:26,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-13 17:47:26,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:26,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-13 17:47:26,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:26,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-13 17:47:26,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:26,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-13 17:47:26,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:26,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-13 17:47:26,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:26,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-07-13 17:47:26,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:26,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:47:26,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:26,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-07-13 17:47:26,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:26,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2022-07-13 17:47:26,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:26,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-07-13 17:47:26,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:26,270 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-07-13 17:47:26,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:47:26,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688495164] [2022-07-13 17:47:26,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688495164] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:47:26,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:47:26,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 17:47:26,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242485235] [2022-07-13 17:47:26,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:47:26,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 17:47:26,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:47:26,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 17:47:26,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 17:47:26,274 INFO L87 Difference]: Start difference. First operand 48205 states and 77636 transitions. Second operand has 7 states, 7 states have (on average 20.285714285714285) internal successors, (142), 3 states have internal predecessors, (142), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-13 17:47:31,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:47:31,148 INFO L93 Difference]: Finished difference Result 127385 states and 208345 transitions. [2022-07-13 17:47:31,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-13 17:47:31,148 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.285714285714285) internal successors, (142), 3 states have internal predecessors, (142), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 232 [2022-07-13 17:47:31,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:47:31,427 INFO L225 Difference]: With dead ends: 127385 [2022-07-13 17:47:31,427 INFO L226 Difference]: Without dead ends: 86057 [2022-07-13 17:47:31,518 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-13 17:47:31,519 INFO L413 NwaCegarLoop]: 886 mSDtfsCounter, 1944 mSDsluCounter, 1073 mSDsCounter, 0 mSdLazyCounter, 1380 mSolverCounterSat, 913 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1963 SdHoareTripleChecker+Valid, 1959 SdHoareTripleChecker+Invalid, 2293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 913 IncrementalHoareTripleChecker+Valid, 1380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-13 17:47:31,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1963 Valid, 1959 Invalid, 2293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [913 Valid, 1380 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-13 17:47:31,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86057 states. [2022-07-13 17:47:35,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86057 to 85797. [2022-07-13 17:47:35,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85797 states, 74173 states have (on average 1.5355587612743182) internal successors, (113897), 74198 states have internal predecessors, (113897), 11526 states have call successors, (11526), 89 states have call predecessors, (11526), 97 states have return successors, (12761), 11522 states have call predecessors, (12761), 11524 states have call successors, (12761) [2022-07-13 17:47:35,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85797 states to 85797 states and 138184 transitions. [2022-07-13 17:47:35,850 INFO L78 Accepts]: Start accepts. Automaton has 85797 states and 138184 transitions. Word has length 232 [2022-07-13 17:47:35,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:47:35,850 INFO L495 AbstractCegarLoop]: Abstraction has 85797 states and 138184 transitions. [2022-07-13 17:47:35,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.285714285714285) internal successors, (142), 3 states have internal predecessors, (142), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-13 17:47:35,851 INFO L276 IsEmpty]: Start isEmpty. Operand 85797 states and 138184 transitions. [2022-07-13 17:47:36,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-07-13 17:47:36,026 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:47:36,026 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:47:36,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-07-13 17:47:36,027 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:47:36,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:47:36,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1878067470, now seen corresponding path program 1 times [2022-07-13 17:47:36,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:47:36,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9564864] [2022-07-13 17:47:36,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:47:36,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:47:36,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:36,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 17:47:36,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:36,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 17:47:36,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:36,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 17:47:36,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:36,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:47:36,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:36,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 17:47:36,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:36,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-13 17:47:36,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:36,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-13 17:47:36,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:36,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-13 17:47:36,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:36,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-13 17:47:36,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:36,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:47:36,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:36,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 17:47:36,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:36,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-13 17:47:36,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:36,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:47:36,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:36,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-13 17:47:36,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:36,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-13 17:47:36,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:36,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 17:47:36,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:36,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-13 17:47:36,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:36,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-13 17:47:36,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:36,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-13 17:47:36,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:36,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-07-13 17:47:36,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:36,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-07-13 17:47:36,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:36,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-07-13 17:47:36,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:36,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-07-13 17:47:36,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:36,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 17:47:36,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:36,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-07-13 17:47:36,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:36,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-13 17:47:36,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:36,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-07-13 17:47:36,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:47:36,194 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-07-13 17:47:36,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:47:36,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9564864] [2022-07-13 17:47:36,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9564864] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:47:36,195 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:47:36,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 17:47:36,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311736985] [2022-07-13 17:47:36,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:47:36,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 17:47:36,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:47:36,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 17:47:36,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 17:47:36,197 INFO L87 Difference]: Start difference. First operand 85797 states and 138184 transitions. Second operand has 7 states, 7 states have (on average 20.428571428571427) internal successors, (143), 3 states have internal predecessors, (143), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-13 17:47:43,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:47:43,686 INFO L93 Difference]: Finished difference Result 232709 states and 380253 transitions. [2022-07-13 17:47:43,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-13 17:47:43,686 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.428571428571427) internal successors, (143), 3 states have internal predecessors, (143), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 233 [2022-07-13 17:47:43,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:47:44,390 INFO L225 Difference]: With dead ends: 232709 [2022-07-13 17:47:44,391 INFO L226 Difference]: Without dead ends: 156141 [2022-07-13 17:47:44,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-13 17:47:44,530 INFO L413 NwaCegarLoop]: 883 mSDtfsCounter, 1972 mSDsluCounter, 1076 mSDsCounter, 0 mSdLazyCounter, 1368 mSolverCounterSat, 933 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1990 SdHoareTripleChecker+Valid, 1959 SdHoareTripleChecker+Invalid, 2301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 933 IncrementalHoareTripleChecker+Valid, 1368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-13 17:47:44,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1990 Valid, 1959 Invalid, 2301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [933 Valid, 1368 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-13 17:47:44,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156141 states. [2022-07-13 17:47:51,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156141 to 155881. [2022-07-13 17:47:51,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155881 states, 135231 states have (on average 1.5391515259075212) internal successors, (208141), 135256 states have internal predecessors, (208141), 20552 states have call successors, (20552), 89 states have call predecessors, (20552), 97 states have return successors, (22851), 20548 states have call predecessors, (22851), 20550 states have call successors, (22851)