./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec0_product09.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 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_spec0_product09.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 3b43506942a12950209750f07d771d1d388e9661c8c19f0364d898e10e246352 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 17:17:46,135 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 17:17:46,137 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 17:17:46,169 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 17:17:46,170 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 17:17:46,171 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 17:17:46,173 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 17:17:46,174 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 17:17:46,176 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 17:17:46,179 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 17:17:46,180 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 17:17:46,181 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 17:17:46,181 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 17:17:46,183 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 17:17:46,184 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 17:17:46,186 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 17:17:46,187 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 17:17:46,188 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 17:17:46,189 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 17:17:46,193 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 17:17:46,194 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 17:17:46,195 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 17:17:46,195 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 17:17:46,196 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 17:17:46,197 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 17:17:46,202 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 17:17:46,202 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 17:17:46,202 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 17:17:46,203 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 17:17:46,203 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 17:17:46,204 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 17:17:46,204 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 17:17:46,205 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 17:17:46,206 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 17:17:46,206 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 17:17:46,207 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 17:17:46,207 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 17:17:46,207 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 17:17:46,208 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 17:17:46,208 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 17:17:46,208 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 17:17:46,210 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 17:17:46,210 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-22 17:17:46,234 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 17:17:46,234 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 17:17:46,234 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 17:17:46,235 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 17:17:46,235 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 17:17:46,235 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 17:17:46,236 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 17:17:46,236 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 17:17:46,236 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 17:17:46,237 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 17:17:46,237 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 17:17:46,237 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 17:17:46,237 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 17:17:46,237 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 17:17:46,237 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 17:17:46,237 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 17:17:46,238 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 17:17:46,238 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 17:17:46,238 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 17:17:46,238 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 17:17:46,238 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 17:17:46,238 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 17:17:46,238 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 17:17:46,239 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 17:17:46,239 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 17:17:46,239 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 17:17:46,239 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 17:17:46,239 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 17:17:46,239 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 17:17:46,240 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 17:17:46,240 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 17:17:46,240 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 17:17:46,240 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 17:17:46,240 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b43506942a12950209750f07d771d1d388e9661c8c19f0364d898e10e246352 [2022-07-22 17:17:46,447 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 17:17:46,461 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 17:17:46,463 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 17:17:46,464 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 17:17:46,464 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 17:17:46,465 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec0_product09.cil.c [2022-07-22 17:17:46,530 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41ee66788/71592bc6d51b417194d0401cfd4e9db6/FLAGdee63f8a0 [2022-07-22 17:17:46,946 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 17:17:46,946 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec0_product09.cil.c [2022-07-22 17:17:46,969 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41ee66788/71592bc6d51b417194d0401cfd4e9db6/FLAGdee63f8a0 [2022-07-22 17:17:46,980 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41ee66788/71592bc6d51b417194d0401cfd4e9db6 [2022-07-22 17:17:46,982 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 17:17:46,983 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 17:17:46,986 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 17:17:46,986 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 17:17:46,989 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 17:17:46,989 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 05:17:46" (1/1) ... [2022-07-22 17:17:46,990 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c5a186d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:17:46, skipping insertion in model container [2022-07-22 17:17:46,990 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 05:17:46" (1/1) ... [2022-07-22 17:17:46,996 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 17:17:47,046 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 17:17:47,415 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_spec0_product09.cil.c[57372,57385] [2022-07-22 17:17:47,418 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 17:17:47,424 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 17:17:47,483 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_spec0_product09.cil.c[57372,57385] [2022-07-22 17:17:47,486 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 17:17:47,510 INFO L208 MainTranslator]: Completed translation [2022-07-22 17:17:47,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:17:47 WrapperNode [2022-07-22 17:17:47,511 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 17:17:47,512 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 17:17:47,512 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 17:17:47,512 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 17:17:47,516 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:17:47" (1/1) ... [2022-07-22 17:17:47,533 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:17:47" (1/1) ... [2022-07-22 17:17:47,562 INFO L137 Inliner]: procedures = 110, calls = 144, calls flagged for inlining = 38, calls inlined = 33, statements flattened = 658 [2022-07-22 17:17:47,562 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 17:17:47,563 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 17:17:47,563 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 17:17:47,563 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 17:17:47,568 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:17:47" (1/1) ... [2022-07-22 17:17:47,568 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:17:47" (1/1) ... [2022-07-22 17:17:47,571 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:17:47" (1/1) ... [2022-07-22 17:17:47,572 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:17:47" (1/1) ... [2022-07-22 17:17:47,580 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:17:47" (1/1) ... [2022-07-22 17:17:47,584 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:17:47" (1/1) ... [2022-07-22 17:17:47,585 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:17:47" (1/1) ... [2022-07-22 17:17:47,588 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 17:17:47,589 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 17:17:47,589 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 17:17:47,589 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 17:17:47,590 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:17:47" (1/1) ... [2022-07-22 17:17:47,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 17:17:47,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 17:17:47,642 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) [2022-07-22 17:17:47,662 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 [2022-07-22 17:17:47,680 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Base [2022-07-22 17:17:47,680 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Base [2022-07-22 17:17:47,680 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-07-22 17:17:47,680 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-07-22 17:17:47,681 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-07-22 17:17:47,681 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-07-22 17:17:47,681 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-07-22 17:17:47,681 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-07-22 17:17:47,681 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-07-22 17:17:47,681 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-07-22 17:17:47,681 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-07-22 17:17:47,681 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-07-22 17:17:47,682 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-07-22 17:17:47,682 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-07-22 17:17:47,682 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-07-22 17:17:47,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 17:17:47,682 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-07-22 17:17:47,682 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-07-22 17:17:47,682 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-07-22 17:17:47,682 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-07-22 17:17:47,683 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-07-22 17:17:47,683 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-07-22 17:17:47,683 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-07-22 17:17:47,683 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-07-22 17:17:47,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 17:17:47,683 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-07-22 17:17:47,683 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-07-22 17:17:47,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 17:17:47,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 17:17:47,796 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 17:17:47,797 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 17:17:48,185 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 17:17:48,195 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 17:17:48,195 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-22 17:17:48,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 05:17:48 BoogieIcfgContainer [2022-07-22 17:17:48,197 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 17:17:48,199 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 17:17:48,199 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 17:17:48,201 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 17:17:48,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 05:17:46" (1/3) ... [2022-07-22 17:17:48,202 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11c0a05b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 05:17:48, skipping insertion in model container [2022-07-22 17:17:48,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:17:47" (2/3) ... [2022-07-22 17:17:48,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11c0a05b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 05:17:48, skipping insertion in model container [2022-07-22 17:17:48,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 05:17:48" (3/3) ... [2022-07-22 17:17:48,204 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec0_product09.cil.c [2022-07-22 17:17:48,216 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 17:17:48,216 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 17:17:48,265 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 17:17:48,269 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@79b9034d, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@71de13c [2022-07-22 17:17:48,270 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 17:17:48,273 INFO L276 IsEmpty]: Start isEmpty. Operand has 209 states, 169 states have (on average 1.5621301775147929) internal successors, (264), 172 states have internal predecessors, (264), 26 states have call successors, (26), 12 states have call predecessors, (26), 12 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2022-07-22 17:17:48,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-07-22 17:17:48,283 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:17:48,284 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-22 17:17:48,284 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:17:48,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:17:48,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1774813752, now seen corresponding path program 1 times [2022-07-22 17:17:48,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:17:48,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574950526] [2022-07-22 17:17:48,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:17:48,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:17:48,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:48,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 17:17:48,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:48,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 17:17:48,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:48,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-22 17:17:48,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:48,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-22 17:17:48,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:48,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-22 17:17:48,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:48,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-22 17:17:48,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:48,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-22 17:17:48,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:48,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-22 17:17:48,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:48,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-22 17:17:48,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:48,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-22 17:17:48,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:48,620 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-22 17:17:48,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:17:48,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574950526] [2022-07-22 17:17:48,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574950526] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 17:17:48,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1906368098] [2022-07-22 17:17:48,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:17:48,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 17:17:48,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 17:17:48,624 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) [2022-07-22 17:17:48,626 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-22 17:17:48,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:48,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 874 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-22 17:17:48,866 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 17:17:48,902 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-07-22 17:17:48,902 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 17:17:48,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1906368098] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:17:48,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 17:17:48,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [8] total 8 [2022-07-22 17:17:48,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901206572] [2022-07-22 17:17:48,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:17:48,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-22 17:17:48,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:17:48,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-22 17:17:48,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-22 17:17:48,937 INFO L87 Difference]: Start difference. First operand has 209 states, 169 states have (on average 1.5621301775147929) internal successors, (264), 172 states have internal predecessors, (264), 26 states have call successors, (26), 12 states have call predecessors, (26), 12 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-22 17:17:48,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:17:48,990 INFO L93 Difference]: Finished difference Result 329 states and 487 transitions. [2022-07-22 17:17:48,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-22 17:17:48,991 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 84 [2022-07-22 17:17:48,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:17:49,004 INFO L225 Difference]: With dead ends: 329 [2022-07-22 17:17:49,004 INFO L226 Difference]: Without dead ends: 202 [2022-07-22 17:17:49,010 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-22 17:17:49,013 INFO L413 NwaCegarLoop]: 312 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 17:17:49,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:17:49,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2022-07-22 17:17:49,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2022-07-22 17:17:49,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 163 states have (on average 1.5521472392638036) internal successors, (253), 165 states have internal predecessors, (253), 26 states have call successors, (26), 12 states have call predecessors, (26), 12 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2022-07-22 17:17:49,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 304 transitions. [2022-07-22 17:17:49,067 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 304 transitions. Word has length 84 [2022-07-22 17:17:49,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:17:49,068 INFO L495 AbstractCegarLoop]: Abstraction has 202 states and 304 transitions. [2022-07-22 17:17:49,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-22 17:17:49,069 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 304 transitions. [2022-07-22 17:17:49,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-07-22 17:17:49,073 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:17:49,073 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-22 17:17:49,091 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-22 17:17:49,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-07-22 17:17:49,291 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:17:49,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:17:49,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1993537687, now seen corresponding path program 1 times [2022-07-22 17:17:49,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:17:49,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229150644] [2022-07-22 17:17:49,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:17:49,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:17:49,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:49,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 17:17:49,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:49,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 17:17:49,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:49,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-22 17:17:49,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:49,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-22 17:17:49,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:49,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-22 17:17:49,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:49,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-22 17:17:49,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:49,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-22 17:17:49,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:49,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-22 17:17:49,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:49,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-22 17:17:49,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:49,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-22 17:17:49,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:49,435 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-22 17:17:49,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:17:49,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229150644] [2022-07-22 17:17:49,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229150644] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 17:17:49,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [541990392] [2022-07-22 17:17:49,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:17:49,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 17:17:49,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 17:17:49,452 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) [2022-07-22 17:17:49,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-22 17:17:49,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:49,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 875 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 17:17:49,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 17:17:49,684 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-07-22 17:17:49,684 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 17:17:49,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [541990392] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:17:49,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 17:17:49,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2022-07-22 17:17:49,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497299909] [2022-07-22 17:17:49,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:17:49,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 17:17:49,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:17:49,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 17:17:49,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-22 17:17:49,688 INFO L87 Difference]: Start difference. First operand 202 states and 304 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-22 17:17:49,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:17:49,710 INFO L93 Difference]: Finished difference Result 319 states and 465 transitions. [2022-07-22 17:17:49,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 17:17:49,710 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 85 [2022-07-22 17:17:49,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:17:49,713 INFO L225 Difference]: With dead ends: 319 [2022-07-22 17:17:49,713 INFO L226 Difference]: Without dead ends: 205 [2022-07-22 17:17:49,715 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-22 17:17:49,716 INFO L413 NwaCegarLoop]: 302 mSDtfsCounter, 1 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 602 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 [2022-07-22 17:17:49,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 602 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:17:49,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2022-07-22 17:17:49,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 204. [2022-07-22 17:17:49,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 165 states have (on average 1.5454545454545454) internal successors, (255), 167 states have internal predecessors, (255), 26 states have call successors, (26), 12 states have call predecessors, (26), 12 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2022-07-22 17:17:49,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 306 transitions. [2022-07-22 17:17:49,742 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 306 transitions. Word has length 85 [2022-07-22 17:17:49,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:17:49,742 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 306 transitions. [2022-07-22 17:17:49,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-22 17:17:49,743 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 306 transitions. [2022-07-22 17:17:49,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-07-22 17:17:49,750 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:17:49,751 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-22 17:17:49,768 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-22 17:17:49,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-07-22 17:17:49,969 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:17:49,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:17:49,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1008731173, now seen corresponding path program 1 times [2022-07-22 17:17:49,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:17:49,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672752210] [2022-07-22 17:17:49,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:17:49,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:17:49,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:50,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 17:17:50,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:50,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 17:17:50,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:50,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-22 17:17:50,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:50,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-22 17:17:50,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:50,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-22 17:17:50,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:50,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-22 17:17:50,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:50,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-22 17:17:50,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:50,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-22 17:17:50,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:50,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-22 17:17:50,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:50,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-22 17:17:50,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:50,089 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-22 17:17:50,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:17:50,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672752210] [2022-07-22 17:17:50,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672752210] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 17:17:50,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [537269850] [2022-07-22 17:17:50,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:17:50,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 17:17:50,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 17:17:50,092 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) [2022-07-22 17:17:50,093 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-22 17:17:50,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:50,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 888 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-22 17:17:50,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 17:17:50,343 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-07-22 17:17:50,343 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 17:17:50,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [537269850] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:17:50,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 17:17:50,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2022-07-22 17:17:50,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095603017] [2022-07-22 17:17:50,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:17:50,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 17:17:50,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:17:50,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 17:17:50,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-07-22 17:17:50,345 INFO L87 Difference]: Start difference. First operand 204 states and 306 transitions. Second operand has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2022-07-22 17:17:50,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:17:50,388 INFO L93 Difference]: Finished difference Result 401 states and 605 transitions. [2022-07-22 17:17:50,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 17:17:50,389 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 90 [2022-07-22 17:17:50,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:17:50,390 INFO L225 Difference]: With dead ends: 401 [2022-07-22 17:17:50,390 INFO L226 Difference]: Without dead ends: 206 [2022-07-22 17:17:50,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-07-22 17:17:50,392 INFO L413 NwaCegarLoop]: 295 mSDtfsCounter, 100 mSDsluCounter, 778 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 1073 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 17:17:50,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 1073 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:17:50,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2022-07-22 17:17:50,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2022-07-22 17:17:50,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 166 states have (on average 1.5421686746987953) internal successors, (256), 169 states have internal predecessors, (256), 26 states have call successors, (26), 12 states have call predecessors, (26), 13 states have return successors, (27), 24 states have call predecessors, (27), 25 states have call successors, (27) [2022-07-22 17:17:50,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 309 transitions. [2022-07-22 17:17:50,402 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 309 transitions. Word has length 90 [2022-07-22 17:17:50,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:17:50,402 INFO L495 AbstractCegarLoop]: Abstraction has 206 states and 309 transitions. [2022-07-22 17:17:50,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2022-07-22 17:17:50,402 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 309 transitions. [2022-07-22 17:17:50,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-07-22 17:17:50,403 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:17:50,404 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-22 17:17:50,429 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-22 17:17:50,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 17:17:50,617 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:17:50,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:17:50,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1416843367, now seen corresponding path program 1 times [2022-07-22 17:17:50,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:17:50,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770661106] [2022-07-22 17:17:50,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:17:50,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:17:50,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:50,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 17:17:50,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:50,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 17:17:50,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:50,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-22 17:17:50,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:50,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-22 17:17:50,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:50,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-22 17:17:50,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:50,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-22 17:17:50,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:50,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-22 17:17:50,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:50,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-22 17:17:50,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:50,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-22 17:17:50,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:50,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-22 17:17:50,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:50,737 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-22 17:17:50,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:17:50,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770661106] [2022-07-22 17:17:50,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770661106] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:17:50,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:17:50,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 17:17:50,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332666970] [2022-07-22 17:17:50,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:17:50,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-22 17:17:50,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:17:50,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-22 17:17:50,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-22 17:17:50,740 INFO L87 Difference]: Start difference. First operand 206 states and 309 transitions. Second operand has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2022-07-22 17:17:51,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:17:51,681 INFO L93 Difference]: Finished difference Result 517 states and 796 transitions. [2022-07-22 17:17:51,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-22 17:17:51,682 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 91 [2022-07-22 17:17:51,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:17:51,688 INFO L225 Difference]: With dead ends: 517 [2022-07-22 17:17:51,689 INFO L226 Difference]: Without dead ends: 330 [2022-07-22 17:17:51,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2022-07-22 17:17:51,692 INFO L413 NwaCegarLoop]: 379 mSDtfsCounter, 559 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 1358 mSolverCounterSat, 214 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 576 SdHoareTripleChecker+Valid, 895 SdHoareTripleChecker+Invalid, 1572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 214 IncrementalHoareTripleChecker+Valid, 1358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-22 17:17:51,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [576 Valid, 895 Invalid, 1572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [214 Valid, 1358 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-22 17:17:51,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2022-07-22 17:17:51,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 206. [2022-07-22 17:17:51,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 166 states have (on average 1.5421686746987953) internal successors, (256), 169 states have internal predecessors, (256), 26 states have call successors, (26), 12 states have call predecessors, (26), 13 states have return successors, (26), 24 states have call predecessors, (26), 25 states have call successors, (26) [2022-07-22 17:17:51,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 308 transitions. [2022-07-22 17:17:51,720 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 308 transitions. Word has length 91 [2022-07-22 17:17:51,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:17:51,721 INFO L495 AbstractCegarLoop]: Abstraction has 206 states and 308 transitions. [2022-07-22 17:17:51,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2022-07-22 17:17:51,721 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 308 transitions. [2022-07-22 17:17:51,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-07-22 17:17:51,722 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:17:51,722 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:17:51,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-22 17:17:51,723 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:17:51,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:17:51,723 INFO L85 PathProgramCache]: Analyzing trace with hash -142239273, now seen corresponding path program 2 times [2022-07-22 17:17:51,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:17:51,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234057169] [2022-07-22 17:17:51,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:17:51,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:17:51,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:51,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 17:17:51,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:51,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 17:17:51,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:51,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-22 17:17:51,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:51,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-22 17:17:51,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:51,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-22 17:17:51,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:51,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-22 17:17:51,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:51,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-22 17:17:51,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:51,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-22 17:17:51,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:51,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-22 17:17:51,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:51,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-22 17:17:51,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:51,802 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-22 17:17:51,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:17:51,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234057169] [2022-07-22 17:17:51,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234057169] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:17:51,803 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:17:51,803 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 17:17:51,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679983599] [2022-07-22 17:17:51,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:17:51,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-22 17:17:51,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:17:51,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-22 17:17:51,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-22 17:17:51,805 INFO L87 Difference]: Start difference. First operand 206 states and 308 transitions. Second operand has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2022-07-22 17:17:52,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:17:52,705 INFO L93 Difference]: Finished difference Result 519 states and 799 transitions. [2022-07-22 17:17:52,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-22 17:17:52,706 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 92 [2022-07-22 17:17:52,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:17:52,710 INFO L225 Difference]: With dead ends: 519 [2022-07-22 17:17:52,710 INFO L226 Difference]: Without dead ends: 332 [2022-07-22 17:17:52,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2022-07-22 17:17:52,712 INFO L413 NwaCegarLoop]: 385 mSDtfsCounter, 553 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 1401 mSolverCounterSat, 209 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 567 SdHoareTripleChecker+Valid, 901 SdHoareTripleChecker+Invalid, 1610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 209 IncrementalHoareTripleChecker+Valid, 1401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-22 17:17:52,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [567 Valid, 901 Invalid, 1610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [209 Valid, 1401 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-22 17:17:52,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2022-07-22 17:17:52,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 208. [2022-07-22 17:17:52,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 167 states have (on average 1.5389221556886228) internal successors, (257), 171 states have internal predecessors, (257), 26 states have call successors, (26), 12 states have call predecessors, (26), 14 states have return successors, (28), 24 states have call predecessors, (28), 25 states have call successors, (28) [2022-07-22 17:17:52,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 311 transitions. [2022-07-22 17:17:52,747 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 311 transitions. Word has length 92 [2022-07-22 17:17:52,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:17:52,749 INFO L495 AbstractCegarLoop]: Abstraction has 208 states and 311 transitions. [2022-07-22 17:17:52,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2022-07-22 17:17:52,750 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 311 transitions. [2022-07-22 17:17:52,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-07-22 17:17:52,752 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:17:52,753 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-22 17:17:52,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-22 17:17:52,753 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:17:52,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:17:52,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1191959156, now seen corresponding path program 1 times [2022-07-22 17:17:52,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:17:52,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862123377] [2022-07-22 17:17:52,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:17:52,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:17:52,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:52,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 17:17:52,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:52,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 17:17:52,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:52,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-22 17:17:52,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:52,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-22 17:17:52,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:52,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-22 17:17:52,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:52,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-22 17:17:52,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:52,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-22 17:17:52,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:52,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-22 17:17:52,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:52,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-22 17:17:52,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:52,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-22 17:17:52,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:52,862 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-22 17:17:52,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:17:52,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862123377] [2022-07-22 17:17:52,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862123377] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 17:17:52,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [981308601] [2022-07-22 17:17:52,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:17:52,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 17:17:52,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 17:17:52,864 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) [2022-07-22 17:17:52,866 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-22 17:17:53,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:53,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 891 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 17:17:53,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 17:17:53,088 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-22 17:17:53,088 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 17:17:53,139 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-22 17:17:53,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [981308601] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 17:17:53,139 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 17:17:53,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 10 [2022-07-22 17:17:53,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395765605] [2022-07-22 17:17:53,140 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 17:17:53,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-22 17:17:53,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:17:53,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-22 17:17:53,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-07-22 17:17:53,142 INFO L87 Difference]: Start difference. First operand 208 states and 311 transitions. Second operand has 10 states, 10 states have (on average 8.8) internal successors, (88), 7 states have internal predecessors, (88), 2 states have call successors, (27), 5 states have call predecessors, (27), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-22 17:17:53,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:17:53,868 INFO L93 Difference]: Finished difference Result 614 states and 974 transitions. [2022-07-22 17:17:53,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-22 17:17:53,868 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.8) internal successors, (88), 7 states have internal predecessors, (88), 2 states have call successors, (27), 5 states have call predecessors, (27), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 93 [2022-07-22 17:17:53,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:17:53,870 INFO L225 Difference]: With dead ends: 614 [2022-07-22 17:17:53,871 INFO L226 Difference]: Without dead ends: 500 [2022-07-22 17:17:53,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2022-07-22 17:17:53,872 INFO L413 NwaCegarLoop]: 416 mSDtfsCounter, 943 mSDsluCounter, 665 mSDsCounter, 0 mSdLazyCounter, 770 mSolverCounterSat, 247 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 967 SdHoareTripleChecker+Valid, 1081 SdHoareTripleChecker+Invalid, 1017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 247 IncrementalHoareTripleChecker+Valid, 770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-22 17:17:53,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [967 Valid, 1081 Invalid, 1017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [247 Valid, 770 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-22 17:17:53,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2022-07-22 17:17:53,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 352. [2022-07-22 17:17:53,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 302 states have (on average 1.6655629139072847) internal successors, (503), 306 states have internal predecessors, (503), 35 states have call successors, (35), 12 states have call predecessors, (35), 14 states have return successors, (37), 33 states have call predecessors, (37), 34 states have call successors, (37) [2022-07-22 17:17:53,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 575 transitions. [2022-07-22 17:17:53,891 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 575 transitions. Word has length 93 [2022-07-22 17:17:53,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:17:53,892 INFO L495 AbstractCegarLoop]: Abstraction has 352 states and 575 transitions. [2022-07-22 17:17:53,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.8) internal successors, (88), 7 states have internal predecessors, (88), 2 states have call successors, (27), 5 states have call predecessors, (27), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-22 17:17:53,892 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 575 transitions. [2022-07-22 17:17:53,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-22 17:17:53,893 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:17:53,893 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-22 17:17:53,923 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-22 17:17:54,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 17:17:54,108 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:17:54,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:17:54,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1719121859, now seen corresponding path program 1 times [2022-07-22 17:17:54,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:17:54,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945359584] [2022-07-22 17:17:54,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:17:54,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:17:54,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:54,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 17:17:54,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:54,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 17:17:54,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:54,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-22 17:17:54,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:54,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-22 17:17:54,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:54,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-22 17:17:54,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:54,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-22 17:17:54,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:54,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-22 17:17:54,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:54,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-22 17:17:54,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:54,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-22 17:17:54,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:54,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-22 17:17:54,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:54,174 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-22 17:17:54,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:17:54,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945359584] [2022-07-22 17:17:54,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945359584] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:17:54,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:17:54,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 17:17:54,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245037227] [2022-07-22 17:17:54,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:17:54,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 17:17:54,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:17:54,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 17:17:54,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-22 17:17:54,177 INFO L87 Difference]: Start difference. First operand 352 states and 575 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-22 17:17:54,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:17:54,797 INFO L93 Difference]: Finished difference Result 951 states and 1590 transitions. [2022-07-22 17:17:54,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-22 17:17:54,798 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 100 [2022-07-22 17:17:54,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:17:54,800 INFO L225 Difference]: With dead ends: 951 [2022-07-22 17:17:54,800 INFO L226 Difference]: Without dead ends: 627 [2022-07-22 17:17:54,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-07-22 17:17:54,802 INFO L413 NwaCegarLoop]: 401 mSDtfsCounter, 550 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 692 mSolverCounterSat, 216 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 565 SdHoareTripleChecker+Valid, 797 SdHoareTripleChecker+Invalid, 908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 216 IncrementalHoareTripleChecker+Valid, 692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 17:17:54,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [565 Valid, 797 Invalid, 908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [216 Valid, 692 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 17:17:54,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2022-07-22 17:17:54,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 495. [2022-07-22 17:17:54,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 436 states have (on average 1.701834862385321) internal successors, (742), 440 states have internal predecessors, (742), 44 states have call successors, (44), 12 states have call predecessors, (44), 14 states have return successors, (46), 42 states have call predecessors, (46), 43 states have call successors, (46) [2022-07-22 17:17:54,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 832 transitions. [2022-07-22 17:17:54,826 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 832 transitions. Word has length 100 [2022-07-22 17:17:54,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:17:54,826 INFO L495 AbstractCegarLoop]: Abstraction has 495 states and 832 transitions. [2022-07-22 17:17:54,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-22 17:17:54,827 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 832 transitions. [2022-07-22 17:17:54,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-22 17:17:54,828 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:17:54,829 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-22 17:17:54,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-22 17:17:54,829 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:17:54,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:17:54,829 INFO L85 PathProgramCache]: Analyzing trace with hash 800915596, now seen corresponding path program 1 times [2022-07-22 17:17:54,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:17:54,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524421153] [2022-07-22 17:17:54,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:17:54,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:17:54,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:54,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 17:17:54,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:54,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 17:17:54,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:54,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-22 17:17:54,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:54,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-22 17:17:54,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:54,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-22 17:17:54,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:54,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-22 17:17:54,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:54,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-22 17:17:54,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:54,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-22 17:17:54,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:54,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-22 17:17:54,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:54,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-22 17:17:54,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:54,892 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-22 17:17:54,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:17:54,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524421153] [2022-07-22 17:17:54,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524421153] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:17:54,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:17:54,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 17:17:54,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512778330] [2022-07-22 17:17:54,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:17:54,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 17:17:54,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:17:54,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 17:17:54,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-22 17:17:54,894 INFO L87 Difference]: Start difference. First operand 495 states and 832 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-22 17:17:55,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:17:55,529 INFO L93 Difference]: Finished difference Result 1323 states and 2260 transitions. [2022-07-22 17:17:55,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-22 17:17:55,530 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 101 [2022-07-22 17:17:55,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:17:55,533 INFO L225 Difference]: With dead ends: 1323 [2022-07-22 17:17:55,533 INFO L226 Difference]: Without dead ends: 864 [2022-07-22 17:17:55,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-07-22 17:17:55,537 INFO L413 NwaCegarLoop]: 403 mSDtfsCounter, 547 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 697 mSolverCounterSat, 218 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 562 SdHoareTripleChecker+Valid, 796 SdHoareTripleChecker+Invalid, 915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 218 IncrementalHoareTripleChecker+Valid, 697 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 17:17:55,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [562 Valid, 796 Invalid, 915 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [218 Valid, 697 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 17:17:55,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2022-07-22 17:17:55,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 732. [2022-07-22 17:17:55,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 732 states, 658 states have (on average 1.7234042553191489) internal successors, (1134), 662 states have internal predecessors, (1134), 59 states have call successors, (59), 12 states have call predecessors, (59), 14 states have return successors, (61), 57 states have call predecessors, (61), 58 states have call successors, (61) [2022-07-22 17:17:55,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 1254 transitions. [2022-07-22 17:17:55,565 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 1254 transitions. Word has length 101 [2022-07-22 17:17:55,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:17:55,566 INFO L495 AbstractCegarLoop]: Abstraction has 732 states and 1254 transitions. [2022-07-22 17:17:55,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-22 17:17:55,566 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 1254 transitions. [2022-07-22 17:17:55,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-07-22 17:17:55,568 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:17:55,568 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-22 17:17:55,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-22 17:17:55,569 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:17:55,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:17:55,569 INFO L85 PathProgramCache]: Analyzing trace with hash 437570885, now seen corresponding path program 1 times [2022-07-22 17:17:55,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:17:55,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566193159] [2022-07-22 17:17:55,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:17:55,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:17:55,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:55,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 17:17:55,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:55,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 17:17:55,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:55,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-22 17:17:55,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:55,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-22 17:17:55,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:55,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-22 17:17:55,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:55,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-22 17:17:55,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:55,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-22 17:17:55,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:55,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-22 17:17:55,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:55,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-22 17:17:55,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:55,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-22 17:17:55,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:55,637 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-22 17:17:55,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:17:55,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566193159] [2022-07-22 17:17:55,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566193159] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:17:55,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:17:55,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 17:17:55,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193495720] [2022-07-22 17:17:55,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:17:55,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 17:17:55,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:17:55,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 17:17:55,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-22 17:17:55,639 INFO L87 Difference]: Start difference. First operand 732 states and 1254 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-22 17:17:56,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:17:56,284 INFO L93 Difference]: Finished difference Result 1919 states and 3324 transitions. [2022-07-22 17:17:56,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-22 17:17:56,285 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 102 [2022-07-22 17:17:56,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:17:56,290 INFO L225 Difference]: With dead ends: 1919 [2022-07-22 17:17:56,290 INFO L226 Difference]: Without dead ends: 1242 [2022-07-22 17:17:56,291 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-07-22 17:17:56,292 INFO L413 NwaCegarLoop]: 407 mSDtfsCounter, 545 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 690 mSolverCounterSat, 215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 560 SdHoareTripleChecker+Valid, 816 SdHoareTripleChecker+Invalid, 905 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 215 IncrementalHoareTripleChecker+Valid, 690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 17:17:56,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [560 Valid, 816 Invalid, 905 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [215 Valid, 690 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 17:17:56,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1242 states. [2022-07-22 17:17:56,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1242 to 1110. [2022-07-22 17:17:56,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1110 states, 1012 states have (on average 1.7312252964426877) internal successors, (1752), 1016 states have internal predecessors, (1752), 83 states have call successors, (83), 12 states have call predecessors, (83), 14 states have return successors, (85), 81 states have call predecessors, (85), 82 states have call successors, (85) [2022-07-22 17:17:56,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1110 states to 1110 states and 1920 transitions. [2022-07-22 17:17:56,328 INFO L78 Accepts]: Start accepts. Automaton has 1110 states and 1920 transitions. Word has length 102 [2022-07-22 17:17:56,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:17:56,328 INFO L495 AbstractCegarLoop]: Abstraction has 1110 states and 1920 transitions. [2022-07-22 17:17:56,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-22 17:17:56,329 INFO L276 IsEmpty]: Start isEmpty. Operand 1110 states and 1920 transitions. [2022-07-22 17:17:56,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-22 17:17:56,347 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:17:56,347 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-22 17:17:56,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-22 17:17:56,348 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:17:56,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:17:56,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1191147766, now seen corresponding path program 1 times [2022-07-22 17:17:56,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:17:56,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171669764] [2022-07-22 17:17:56,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:17:56,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:17:56,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:56,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 17:17:56,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:56,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 17:17:56,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:56,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-22 17:17:56,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:56,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-22 17:17:56,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:56,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-22 17:17:56,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:56,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-22 17:17:56,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:56,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-22 17:17:56,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:56,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-22 17:17:56,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:56,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-22 17:17:56,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:56,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-22 17:17:56,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:56,398 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-22 17:17:56,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:17:56,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171669764] [2022-07-22 17:17:56,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171669764] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:17:56,399 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:17:56,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 17:17:56,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616390353] [2022-07-22 17:17:56,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:17:56,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 17:17:56,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:17:56,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 17:17:56,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-22 17:17:56,400 INFO L87 Difference]: Start difference. First operand 1110 states and 1920 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-22 17:17:57,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:17:57,067 INFO L93 Difference]: Finished difference Result 2869 states and 5007 transitions. [2022-07-22 17:17:57,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-22 17:17:57,068 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 103 [2022-07-22 17:17:57,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:17:57,074 INFO L225 Difference]: With dead ends: 2869 [2022-07-22 17:17:57,074 INFO L226 Difference]: Without dead ends: 1852 [2022-07-22 17:17:57,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-07-22 17:17:57,077 INFO L413 NwaCegarLoop]: 402 mSDtfsCounter, 543 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 699 mSolverCounterSat, 216 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 558 SdHoareTripleChecker+Valid, 795 SdHoareTripleChecker+Invalid, 915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 216 IncrementalHoareTripleChecker+Valid, 699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-22 17:17:57,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [558 Valid, 795 Invalid, 915 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [216 Valid, 699 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-22 17:17:57,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1852 states. [2022-07-22 17:17:57,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1852 to 1720. [2022-07-22 17:17:57,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1720 states, 1583 states have (on average 1.7308907138344916) internal successors, (2740), 1587 states have internal predecessors, (2740), 122 states have call successors, (122), 12 states have call predecessors, (122), 14 states have return successors, (124), 120 states have call predecessors, (124), 121 states have call successors, (124) [2022-07-22 17:17:57,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1720 states to 1720 states and 2986 transitions. [2022-07-22 17:17:57,134 INFO L78 Accepts]: Start accepts. Automaton has 1720 states and 2986 transitions. Word has length 103 [2022-07-22 17:17:57,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:17:57,134 INFO L495 AbstractCegarLoop]: Abstraction has 1720 states and 2986 transitions. [2022-07-22 17:17:57,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-22 17:17:57,134 INFO L276 IsEmpty]: Start isEmpty. Operand 1720 states and 2986 transitions. [2022-07-22 17:17:57,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-07-22 17:17:57,139 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:17:57,139 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-22 17:17:57,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-22 17:17:57,139 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:17:57,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:17:57,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1632128313, now seen corresponding path program 1 times [2022-07-22 17:17:57,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:17:57,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72036220] [2022-07-22 17:17:57,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:17:57,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:17:57,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:57,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 17:17:57,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:57,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 17:17:57,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:57,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-22 17:17:57,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:57,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-22 17:17:57,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:57,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-22 17:17:57,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:57,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-22 17:17:57,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:57,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-22 17:17:57,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:57,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-22 17:17:57,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:57,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-22 17:17:57,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:57,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-22 17:17:57,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:57,200 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-22 17:17:57,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:17:57,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72036220] [2022-07-22 17:17:57,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72036220] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:17:57,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:17:57,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 17:17:57,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340512723] [2022-07-22 17:17:57,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:17:57,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 17:17:57,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:17:57,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 17:17:57,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-22 17:17:57,203 INFO L87 Difference]: Start difference. First operand 1720 states and 2986 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-22 17:17:57,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:17:57,968 INFO L93 Difference]: Finished difference Result 4434 states and 7763 transitions. [2022-07-22 17:17:57,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-22 17:17:57,969 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 104 [2022-07-22 17:17:57,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:17:57,982 INFO L225 Difference]: With dead ends: 4434 [2022-07-22 17:17:57,983 INFO L226 Difference]: Without dead ends: 2872 [2022-07-22 17:17:57,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-07-22 17:17:57,987 INFO L413 NwaCegarLoop]: 398 mSDtfsCounter, 542 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 689 mSolverCounterSat, 215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 556 SdHoareTripleChecker+Valid, 791 SdHoareTripleChecker+Invalid, 904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 215 IncrementalHoareTripleChecker+Valid, 689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-22 17:17:57,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [556 Valid, 791 Invalid, 904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [215 Valid, 689 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-22 17:17:57,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2872 states. [2022-07-22 17:17:58,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2872 to 2740. [2022-07-22 17:17:58,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2740 states, 2537 states have (on average 1.7268427276310603) internal successors, (4381), 2541 states have internal predecessors, (4381), 188 states have call successors, (188), 12 states have call predecessors, (188), 14 states have return successors, (190), 186 states have call predecessors, (190), 187 states have call successors, (190) [2022-07-22 17:17:58,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2740 states to 2740 states and 4759 transitions. [2022-07-22 17:17:58,087 INFO L78 Accepts]: Start accepts. Automaton has 2740 states and 4759 transitions. Word has length 104 [2022-07-22 17:17:58,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:17:58,088 INFO L495 AbstractCegarLoop]: Abstraction has 2740 states and 4759 transitions. [2022-07-22 17:17:58,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-22 17:17:58,088 INFO L276 IsEmpty]: Start isEmpty. Operand 2740 states and 4759 transitions. [2022-07-22 17:17:58,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-07-22 17:17:58,096 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:17:58,096 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-22 17:17:58,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-22 17:17:58,096 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:17:58,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:17:58,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1275080072, now seen corresponding path program 1 times [2022-07-22 17:17:58,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:17:58,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841750436] [2022-07-22 17:17:58,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:17:58,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:17:58,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:58,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 17:17:58,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:58,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 17:17:58,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:58,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-22 17:17:58,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:58,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-22 17:17:58,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:58,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-22 17:17:58,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:58,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-22 17:17:58,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:58,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-22 17:17:58,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:58,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-22 17:17:58,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:58,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-22 17:17:58,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:58,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-22 17:17:58,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:58,168 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-22 17:17:58,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:17:58,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841750436] [2022-07-22 17:17:58,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841750436] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:17:58,169 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:17:58,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 17:17:58,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91629970] [2022-07-22 17:17:58,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:17:58,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 17:17:58,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:17:58,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 17:17:58,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-22 17:17:58,171 INFO L87 Difference]: Start difference. First operand 2740 states and 4759 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-22 17:17:58,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:17:58,848 INFO L93 Difference]: Finished difference Result 6859 states and 12055 transitions. [2022-07-22 17:17:58,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-22 17:17:58,849 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 105 [2022-07-22 17:17:58,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:17:58,866 INFO L225 Difference]: With dead ends: 6859 [2022-07-22 17:17:58,867 INFO L226 Difference]: Without dead ends: 4457 [2022-07-22 17:17:58,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-07-22 17:17:58,873 INFO L413 NwaCegarLoop]: 408 mSDtfsCounter, 539 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 694 mSolverCounterSat, 213 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 554 SdHoareTripleChecker+Valid, 809 SdHoareTripleChecker+Invalid, 907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 213 IncrementalHoareTripleChecker+Valid, 694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 17:17:58,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [554 Valid, 809 Invalid, 907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [213 Valid, 694 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 17:17:58,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4457 states. [2022-07-22 17:17:59,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4457 to 4325. [2022-07-22 17:17:59,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4325 states, 4005 states have (on average 1.7273408239700374) internal successors, (6918), 4009 states have internal predecessors, (6918), 305 states have call successors, (305), 12 states have call predecessors, (305), 14 states have return successors, (307), 303 states have call predecessors, (307), 304 states have call successors, (307) [2022-07-22 17:17:59,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4325 states to 4325 states and 7530 transitions. [2022-07-22 17:17:59,047 INFO L78 Accepts]: Start accepts. Automaton has 4325 states and 7530 transitions. Word has length 105 [2022-07-22 17:17:59,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:17:59,048 INFO L495 AbstractCegarLoop]: Abstraction has 4325 states and 7530 transitions. [2022-07-22 17:17:59,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-22 17:17:59,048 INFO L276 IsEmpty]: Start isEmpty. Operand 4325 states and 7530 transitions. [2022-07-22 17:17:59,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-07-22 17:17:59,060 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:17:59,060 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:17:59,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-22 17:17:59,061 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:17:59,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:17:59,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1046251593, now seen corresponding path program 1 times [2022-07-22 17:17:59,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:17:59,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473239266] [2022-07-22 17:17:59,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:17:59,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:17:59,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:59,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 17:17:59,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:59,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 17:17:59,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:59,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-22 17:17:59,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:59,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-22 17:17:59,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:59,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-22 17:17:59,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:59,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-22 17:17:59,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:59,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-22 17:17:59,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:59,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-22 17:17:59,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:59,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-22 17:17:59,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:59,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-22 17:17:59,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:17:59,126 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-22 17:17:59,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:17:59,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473239266] [2022-07-22 17:17:59,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473239266] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:17:59,126 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:17:59,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 17:17:59,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013792623] [2022-07-22 17:17:59,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:17:59,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 17:17:59,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:17:59,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 17:17:59,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-22 17:17:59,128 INFO L87 Difference]: Start difference. First operand 4325 states and 7530 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-22 17:17:59,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:17:59,888 INFO L93 Difference]: Finished difference Result 11366 states and 19970 transitions. [2022-07-22 17:17:59,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-22 17:17:59,888 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 106 [2022-07-22 17:17:59,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:17:59,914 INFO L225 Difference]: With dead ends: 11366 [2022-07-22 17:17:59,914 INFO L226 Difference]: Without dead ends: 7522 [2022-07-22 17:17:59,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-07-22 17:17:59,924 INFO L413 NwaCegarLoop]: 407 mSDtfsCounter, 537 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 694 mSolverCounterSat, 215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 550 SdHoareTripleChecker+Valid, 816 SdHoareTripleChecker+Invalid, 909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 215 IncrementalHoareTripleChecker+Valid, 694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 17:17:59,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [550 Valid, 816 Invalid, 909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [215 Valid, 694 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 17:17:59,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7522 states. [2022-07-22 17:18:00,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7522 to 7390. [2022-07-22 17:18:00,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7390 states, 6854 states have (on average 1.7213306098628538) internal successors, (11798), 6858 states have internal predecessors, (11798), 521 states have call successors, (521), 12 states have call predecessors, (521), 14 states have return successors, (523), 519 states have call predecessors, (523), 520 states have call successors, (523) [2022-07-22 17:18:00,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7390 states to 7390 states and 12842 transitions. [2022-07-22 17:18:00,242 INFO L78 Accepts]: Start accepts. Automaton has 7390 states and 12842 transitions. Word has length 106 [2022-07-22 17:18:00,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:18:00,242 INFO L495 AbstractCegarLoop]: Abstraction has 7390 states and 12842 transitions. [2022-07-22 17:18:00,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-22 17:18:00,243 INFO L276 IsEmpty]: Start isEmpty. Operand 7390 states and 12842 transitions. [2022-07-22 17:18:00,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-07-22 17:18:00,267 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:18:00,267 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:18:00,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-22 17:18:00,268 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:18:00,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:18:00,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1300941798, now seen corresponding path program 1 times [2022-07-22 17:18:00,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:18:00,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317775763] [2022-07-22 17:18:00,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:18:00,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:18:00,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:00,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 17:18:00,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:00,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 17:18:00,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:00,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-22 17:18:00,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:00,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-22 17:18:00,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:00,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-22 17:18:00,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:00,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-22 17:18:00,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:00,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-22 17:18:00,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:00,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-22 17:18:00,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:00,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-22 17:18:00,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:00,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-22 17:18:00,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:00,351 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-22 17:18:00,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:18:00,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317775763] [2022-07-22 17:18:00,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317775763] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:18:00,352 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:18:00,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 17:18:00,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720875204] [2022-07-22 17:18:00,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:18:00,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 17:18:00,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:18:00,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 17:18:00,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-22 17:18:00,353 INFO L87 Difference]: Start difference. First operand 7390 states and 12842 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-22 17:18:01,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:18:01,325 INFO L93 Difference]: Finished difference Result 16936 states and 29417 transitions. [2022-07-22 17:18:01,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-22 17:18:01,326 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 107 [2022-07-22 17:18:01,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:18:01,371 INFO L225 Difference]: With dead ends: 16936 [2022-07-22 17:18:01,371 INFO L226 Difference]: Without dead ends: 10773 [2022-07-22 17:18:01,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-07-22 17:18:01,386 INFO L413 NwaCegarLoop]: 396 mSDtfsCounter, 535 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 679 mSolverCounterSat, 210 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 548 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 210 IncrementalHoareTripleChecker+Valid, 679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-22 17:18:01,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [548 Valid, 762 Invalid, 889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [210 Valid, 679 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-22 17:18:01,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10773 states. [2022-07-22 17:18:01,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10773 to 10641. [2022-07-22 17:18:01,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10641 states, 10105 states have (on average 1.6966848095002474) internal successors, (17145), 10109 states have internal predecessors, (17145), 521 states have call successors, (521), 12 states have call predecessors, (521), 14 states have return successors, (523), 519 states have call predecessors, (523), 520 states have call successors, (523) [2022-07-22 17:18:01,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10641 states to 10641 states and 18189 transitions. [2022-07-22 17:18:01,763 INFO L78 Accepts]: Start accepts. Automaton has 10641 states and 18189 transitions. Word has length 107 [2022-07-22 17:18:01,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:18:01,763 INFO L495 AbstractCegarLoop]: Abstraction has 10641 states and 18189 transitions. [2022-07-22 17:18:01,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-22 17:18:01,764 INFO L276 IsEmpty]: Start isEmpty. Operand 10641 states and 18189 transitions. [2022-07-22 17:18:01,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-07-22 17:18:01,784 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:18:01,784 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 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] [2022-07-22 17:18:01,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-22 17:18:01,784 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:18:01,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:18:01,785 INFO L85 PathProgramCache]: Analyzing trace with hash 752921054, now seen corresponding path program 2 times [2022-07-22 17:18:01,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:18:01,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276908551] [2022-07-22 17:18:01,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:18:01,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:18:01,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:01,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 17:18:01,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:01,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 17:18:01,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:01,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-22 17:18:01,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:01,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-22 17:18:01,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:01,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-22 17:18:01,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:01,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-22 17:18:01,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:01,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-22 17:18:01,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:01,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-22 17:18:01,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:01,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-22 17:18:01,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:01,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-22 17:18:01,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:01,851 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-07-22 17:18:01,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:18:01,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276908551] [2022-07-22 17:18:01,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276908551] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:18:01,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:18:01,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 17:18:01,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133896220] [2022-07-22 17:18:01,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:18:01,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-22 17:18:01,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:18:01,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-22 17:18:01,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-22 17:18:01,853 INFO L87 Difference]: Start difference. First operand 10641 states and 18189 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-22 17:18:03,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:18:03,126 INFO L93 Difference]: Finished difference Result 19747 states and 33880 transitions. [2022-07-22 17:18:03,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-22 17:18:03,126 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 108 [2022-07-22 17:18:03,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:18:03,150 INFO L225 Difference]: With dead ends: 19747 [2022-07-22 17:18:03,150 INFO L226 Difference]: Without dead ends: 10773 [2022-07-22 17:18:03,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2022-07-22 17:18:03,167 INFO L413 NwaCegarLoop]: 486 mSDtfsCounter, 748 mSDsluCounter, 657 mSDsCounter, 0 mSdLazyCounter, 1404 mSolverCounterSat, 231 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 759 SdHoareTripleChecker+Valid, 1143 SdHoareTripleChecker+Invalid, 1635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 231 IncrementalHoareTripleChecker+Valid, 1404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-22 17:18:03,167 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [759 Valid, 1143 Invalid, 1635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [231 Valid, 1404 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-22 17:18:03,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10773 states. [2022-07-22 17:18:03,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10773 to 10641. [2022-07-22 17:18:03,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10641 states, 10105 states have (on average 1.683127164769916) internal successors, (17008), 10109 states have internal predecessors, (17008), 521 states have call successors, (521), 12 states have call predecessors, (521), 14 states have return successors, (523), 519 states have call predecessors, (523), 520 states have call successors, (523) [2022-07-22 17:18:03,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10641 states to 10641 states and 18052 transitions. [2022-07-22 17:18:03,658 INFO L78 Accepts]: Start accepts. Automaton has 10641 states and 18052 transitions. Word has length 108 [2022-07-22 17:18:03,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:18:03,659 INFO L495 AbstractCegarLoop]: Abstraction has 10641 states and 18052 transitions. [2022-07-22 17:18:03,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-22 17:18:03,660 INFO L276 IsEmpty]: Start isEmpty. Operand 10641 states and 18052 transitions. [2022-07-22 17:18:03,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-07-22 17:18:03,677 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:18:03,678 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-22 17:18:03,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-22 17:18:03,678 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:18:03,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:18:03,678 INFO L85 PathProgramCache]: Analyzing trace with hash -1599377333, now seen corresponding path program 1 times [2022-07-22 17:18:03,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:18:03,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798671308] [2022-07-22 17:18:03,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:18:03,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:18:03,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:03,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 17:18:03,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:03,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 17:18:03,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:03,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-22 17:18:03,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:03,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-22 17:18:03,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:03,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-22 17:18:03,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:03,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-22 17:18:03,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:03,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-22 17:18:03,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:03,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-22 17:18:03,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:03,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-22 17:18:03,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:03,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-22 17:18:03,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:03,731 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-22 17:18:03,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:18:03,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798671308] [2022-07-22 17:18:03,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798671308] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:18:03,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:18:03,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 17:18:03,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589809483] [2022-07-22 17:18:03,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:18:03,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 17:18:03,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:18:03,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 17:18:03,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-22 17:18:03,733 INFO L87 Difference]: Start difference. First operand 10641 states and 18052 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-22 17:18:04,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:18:04,810 INFO L93 Difference]: Finished difference Result 28476 states and 48542 transitions. [2022-07-22 17:18:04,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-22 17:18:04,811 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 108 [2022-07-22 17:18:04,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:18:04,859 INFO L225 Difference]: With dead ends: 28476 [2022-07-22 17:18:04,859 INFO L226 Difference]: Without dead ends: 19350 [2022-07-22 17:18:04,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-07-22 17:18:04,881 INFO L413 NwaCegarLoop]: 401 mSDtfsCounter, 533 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 693 mSolverCounterSat, 219 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 547 SdHoareTripleChecker+Valid, 794 SdHoareTripleChecker+Invalid, 912 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 219 IncrementalHoareTripleChecker+Valid, 693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 17:18:04,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [547 Valid, 794 Invalid, 912 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [219 Valid, 693 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 17:18:04,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19350 states. [2022-07-22 17:18:05,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19350 to 19218. [2022-07-22 17:18:05,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19218 states, 18271 states have (on average 1.6699140714793936) internal successors, (30511), 18275 states have internal predecessors, (30511), 932 states have call successors, (932), 12 states have call predecessors, (932), 14 states have return successors, (934), 930 states have call predecessors, (934), 931 states have call successors, (934) [2022-07-22 17:18:05,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19218 states to 19218 states and 32377 transitions. [2022-07-22 17:18:05,539 INFO L78 Accepts]: Start accepts. Automaton has 19218 states and 32377 transitions. Word has length 108 [2022-07-22 17:18:05,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:18:05,539 INFO L495 AbstractCegarLoop]: Abstraction has 19218 states and 32377 transitions. [2022-07-22 17:18:05,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-22 17:18:05,539 INFO L276 IsEmpty]: Start isEmpty. Operand 19218 states and 32377 transitions. [2022-07-22 17:18:05,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-07-22 17:18:05,567 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:18:05,567 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-22 17:18:05,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-22 17:18:05,567 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:18:05,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:18:05,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1953118816, now seen corresponding path program 1 times [2022-07-22 17:18:05,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:18:05,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834069894] [2022-07-22 17:18:05,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:18:05,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:18:05,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:05,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 17:18:05,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:05,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 17:18:05,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:05,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-22 17:18:05,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:05,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-22 17:18:05,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:05,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-22 17:18:05,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:05,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-22 17:18:05,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:05,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-22 17:18:05,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:05,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-22 17:18:05,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:05,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-22 17:18:05,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:05,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-22 17:18:05,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:05,762 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-22 17:18:05,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:18:05,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834069894] [2022-07-22 17:18:05,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834069894] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:18:05,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:18:05,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 17:18:05,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595023291] [2022-07-22 17:18:05,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:18:05,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 17:18:05,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:18:05,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 17:18:05,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-22 17:18:05,764 INFO L87 Difference]: Start difference. First operand 19218 states and 32377 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-22 17:18:07,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:18:07,133 INFO L93 Difference]: Finished difference Result 52998 states and 89549 transitions. [2022-07-22 17:18:07,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-22 17:18:07,134 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 109 [2022-07-22 17:18:07,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:18:07,376 INFO L225 Difference]: With dead ends: 52998 [2022-07-22 17:18:07,376 INFO L226 Difference]: Without dead ends: 35799 [2022-07-22 17:18:07,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-07-22 17:18:07,399 INFO L413 NwaCegarLoop]: 407 mSDtfsCounter, 531 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 699 mSolverCounterSat, 212 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 546 SdHoareTripleChecker+Valid, 816 SdHoareTripleChecker+Invalid, 911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 212 IncrementalHoareTripleChecker+Valid, 699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 17:18:07,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [546 Valid, 816 Invalid, 911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [212 Valid, 699 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 17:18:07,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35799 states. [2022-07-22 17:18:08,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35799 to 35667. [2022-07-22 17:18:08,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35667 states, 33922 states have (on average 1.6542067095100526) internal successors, (56114), 33926 states have internal predecessors, (56114), 1730 states have call successors, (1730), 12 states have call predecessors, (1730), 14 states have return successors, (1732), 1728 states have call predecessors, (1732), 1729 states have call successors, (1732) [2022-07-22 17:18:08,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35667 states to 35667 states and 59576 transitions. [2022-07-22 17:18:08,643 INFO L78 Accepts]: Start accepts. Automaton has 35667 states and 59576 transitions. Word has length 109 [2022-07-22 17:18:08,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:18:08,644 INFO L495 AbstractCegarLoop]: Abstraction has 35667 states and 59576 transitions. [2022-07-22 17:18:08,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-22 17:18:08,644 INFO L276 IsEmpty]: Start isEmpty. Operand 35667 states and 59576 transitions. [2022-07-22 17:18:08,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-07-22 17:18:08,672 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:18:08,672 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-22 17:18:08,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-22 17:18:08,672 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:18:08,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:18:08,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1046204083, now seen corresponding path program 1 times [2022-07-22 17:18:08,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:18:08,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194124044] [2022-07-22 17:18:08,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:18:08,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:18:08,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:08,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 17:18:08,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:08,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 17:18:08,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:08,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-22 17:18:08,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:08,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-22 17:18:08,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:08,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-22 17:18:08,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:08,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-22 17:18:08,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:08,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-22 17:18:08,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:08,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-22 17:18:08,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:08,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-22 17:18:08,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:08,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-22 17:18:08,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:08,728 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-22 17:18:08,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:18:08,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194124044] [2022-07-22 17:18:08,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194124044] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:18:08,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:18:08,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 17:18:08,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237937971] [2022-07-22 17:18:08,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:18:08,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 17:18:08,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:18:08,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 17:18:08,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-22 17:18:08,730 INFO L87 Difference]: Start difference. First operand 35667 states and 59576 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-22 17:18:11,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:18:11,008 INFO L93 Difference]: Finished difference Result 67756 states and 113107 transitions. [2022-07-22 17:18:11,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-22 17:18:11,009 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 110 [2022-07-22 17:18:11,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:18:11,202 INFO L225 Difference]: With dead ends: 67756 [2022-07-22 17:18:11,202 INFO L226 Difference]: Without dead ends: 67642 [2022-07-22 17:18:11,224 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-07-22 17:18:11,224 INFO L413 NwaCegarLoop]: 411 mSDtfsCounter, 528 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 710 mSolverCounterSat, 209 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 541 SdHoareTripleChecker+Valid, 820 SdHoareTripleChecker+Invalid, 919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 209 IncrementalHoareTripleChecker+Valid, 710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 17:18:11,225 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [541 Valid, 820 Invalid, 919 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [209 Valid, 710 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 17:18:11,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67642 states. [2022-07-22 17:18:13,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67642 to 67510. [2022-07-22 17:18:13,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67510 states, 64196 states have (on average 1.6362857498909589) internal successors, (105043), 64200 states have internal predecessors, (105043), 3299 states have call successors, (3299), 12 states have call predecessors, (3299), 14 states have return successors, (3301), 3297 states have call predecessors, (3301), 3298 states have call successors, (3301) [2022-07-22 17:18:13,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67510 states to 67510 states and 111643 transitions. [2022-07-22 17:18:13,601 INFO L78 Accepts]: Start accepts. Automaton has 67510 states and 111643 transitions. Word has length 110 [2022-07-22 17:18:13,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:18:13,601 INFO L495 AbstractCegarLoop]: Abstraction has 67510 states and 111643 transitions. [2022-07-22 17:18:13,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-22 17:18:13,601 INFO L276 IsEmpty]: Start isEmpty. Operand 67510 states and 111643 transitions. [2022-07-22 17:18:13,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-07-22 17:18:13,646 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:18:13,646 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:18:13,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-22 17:18:13,646 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:18:13,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:18:13,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1765900778, now seen corresponding path program 1 times [2022-07-22 17:18:13,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:18:13,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655715931] [2022-07-22 17:18:13,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:18:13,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:18:13,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:13,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 17:18:13,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:13,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 17:18:13,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:13,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-22 17:18:13,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:13,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-22 17:18:13,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:13,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-22 17:18:13,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:13,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-22 17:18:13,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:13,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-22 17:18:13,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:13,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-22 17:18:13,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:13,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-22 17:18:13,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:13,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-22 17:18:13,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:13,721 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-07-22 17:18:13,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:18:13,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655715931] [2022-07-22 17:18:13,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655715931] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:18:13,721 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:18:13,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 17:18:13,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140719880] [2022-07-22 17:18:13,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:18:13,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-22 17:18:13,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:18:13,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-22 17:18:13,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-22 17:18:13,724 INFO L87 Difference]: Start difference. First operand 67510 states and 111643 transitions. Second operand has 8 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-22 17:18:16,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:18:16,745 INFO L93 Difference]: Finished difference Result 131923 states and 218520 transitions. [2022-07-22 17:18:16,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-22 17:18:16,745 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 111 [2022-07-22 17:18:16,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:18:16,973 INFO L225 Difference]: With dead ends: 131923 [2022-07-22 17:18:16,973 INFO L226 Difference]: Without dead ends: 67608 [2022-07-22 17:18:17,045 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2022-07-22 17:18:17,046 INFO L413 NwaCegarLoop]: 487 mSDtfsCounter, 739 mSDsluCounter, 675 mSDsCounter, 0 mSdLazyCounter, 1410 mSolverCounterSat, 220 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 748 SdHoareTripleChecker+Valid, 1162 SdHoareTripleChecker+Invalid, 1630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 220 IncrementalHoareTripleChecker+Valid, 1410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-22 17:18:17,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [748 Valid, 1162 Invalid, 1630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [220 Valid, 1410 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-22 17:18:17,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67608 states. [2022-07-22 17:18:19,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67608 to 67476. [2022-07-22 17:18:19,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67476 states, 64162 states have (on average 1.620336024438141) internal successors, (103964), 64166 states have internal predecessors, (103964), 3299 states have call successors, (3299), 12 states have call predecessors, (3299), 14 states have return successors, (3301), 3297 states have call predecessors, (3301), 3298 states have call successors, (3301) [2022-07-22 17:18:19,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67476 states to 67476 states and 110564 transitions. [2022-07-22 17:18:19,484 INFO L78 Accepts]: Start accepts. Automaton has 67476 states and 110564 transitions. Word has length 111 [2022-07-22 17:18:19,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:18:19,485 INFO L495 AbstractCegarLoop]: Abstraction has 67476 states and 110564 transitions. [2022-07-22 17:18:19,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-22 17:18:19,485 INFO L276 IsEmpty]: Start isEmpty. Operand 67476 states and 110564 transitions. [2022-07-22 17:18:19,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-07-22 17:18:19,525 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:18:19,525 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-22 17:18:19,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-22 17:18:19,526 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:18:19,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:18:19,526 INFO L85 PathProgramCache]: Analyzing trace with hash -414235298, now seen corresponding path program 1 times [2022-07-22 17:18:19,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:18:19,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178520740] [2022-07-22 17:18:19,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:18:19,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:18:19,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:19,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 17:18:19,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:19,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 17:18:19,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:19,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-22 17:18:19,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:19,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-22 17:18:19,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:19,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-22 17:18:19,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:19,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-22 17:18:19,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:19,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-22 17:18:19,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:19,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-22 17:18:19,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:19,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-22 17:18:19,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:19,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-22 17:18:19,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:19,720 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-07-22 17:18:19,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:18:19,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178520740] [2022-07-22 17:18:19,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178520740] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 17:18:19,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [825693285] [2022-07-22 17:18:19,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:18:19,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 17:18:19,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 17:18:19,736 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) [2022-07-22 17:18:19,752 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-22 17:18:19,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:19,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 968 conjuncts, 21 conjunts are in the unsatisfiable core [2022-07-22 17:18:19,937 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 17:18:20,174 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-22 17:18:20,174 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 17:18:20,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [825693285] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:18:20,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 17:18:20,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [18] total 28 [2022-07-22 17:18:20,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860102979] [2022-07-22 17:18:20,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:18:20,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-22 17:18:20,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:18:20,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-22 17:18:20,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2022-07-22 17:18:20,176 INFO L87 Difference]: Start difference. First operand 67476 states and 110564 transitions. Second operand has 12 states, 11 states have (on average 7.7272727272727275) internal successors, (85), 10 states have internal predecessors, (85), 5 states have call successors, (13), 5 states have call predecessors, (13), 6 states have return successors, (10), 6 states have call predecessors, (10), 5 states have call successors, (10) [2022-07-22 17:18:22,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:18:22,618 INFO L93 Difference]: Finished difference Result 67816 states and 111054 transitions. [2022-07-22 17:18:22,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-22 17:18:22,619 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.7272727272727275) internal successors, (85), 10 states have internal predecessors, (85), 5 states have call successors, (13), 5 states have call predecessors, (13), 6 states have return successors, (10), 6 states have call predecessors, (10), 5 states have call successors, (10) Word has length 111 [2022-07-22 17:18:22,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:18:22,833 INFO L225 Difference]: With dead ends: 67816 [2022-07-22 17:18:22,834 INFO L226 Difference]: Without dead ends: 67708 [2022-07-22 17:18:22,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=195, Invalid=1527, Unknown=0, NotChecked=0, Total=1722 [2022-07-22 17:18:22,857 INFO L413 NwaCegarLoop]: 348 mSDtfsCounter, 643 mSDsluCounter, 3046 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 651 SdHoareTripleChecker+Valid, 3394 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 17:18:22,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [651 Valid, 3394 Invalid, 656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 506 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 17:18:22,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67708 states. [2022-07-22 17:18:25,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67708 to 67622. [2022-07-22 17:18:25,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67622 states, 64275 states have (on average 1.6199299883313885) internal successors, (104121), 64281 states have internal predecessors, (104121), 3320 states have call successors, (3320), 21 states have call predecessors, (3320), 26 states have return successors, (3338), 3319 states have call predecessors, (3338), 3318 states have call successors, (3338) [2022-07-22 17:18:25,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67622 states to 67622 states and 110779 transitions. [2022-07-22 17:18:25,250 INFO L78 Accepts]: Start accepts. Automaton has 67622 states and 110779 transitions. Word has length 111 [2022-07-22 17:18:25,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:18:25,250 INFO L495 AbstractCegarLoop]: Abstraction has 67622 states and 110779 transitions. [2022-07-22 17:18:25,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.7272727272727275) internal successors, (85), 10 states have internal predecessors, (85), 5 states have call successors, (13), 5 states have call predecessors, (13), 6 states have return successors, (10), 6 states have call predecessors, (10), 5 states have call successors, (10) [2022-07-22 17:18:25,251 INFO L276 IsEmpty]: Start isEmpty. Operand 67622 states and 110779 transitions. [2022-07-22 17:18:25,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-07-22 17:18:25,288 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:18:25,289 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-22 17:18:25,307 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-22 17:18:25,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 17:18:25,506 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:18:25,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:18:25,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1154622035, now seen corresponding path program 1 times [2022-07-22 17:18:25,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:18:25,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713112584] [2022-07-22 17:18:25,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:18:25,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:18:25,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:25,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 17:18:25,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:25,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 17:18:25,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:25,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-22 17:18:25,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:25,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-22 17:18:25,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:25,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-22 17:18:25,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:25,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-22 17:18:25,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:25,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-22 17:18:25,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:25,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-22 17:18:25,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:25,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-22 17:18:25,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:25,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-22 17:18:25,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:25,574 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-22 17:18:25,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:18:25,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713112584] [2022-07-22 17:18:25,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713112584] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:18:25,575 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:18:25,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 17:18:25,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830579106] [2022-07-22 17:18:25,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:18:25,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-22 17:18:25,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:18:25,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-22 17:18:25,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-22 17:18:25,576 INFO L87 Difference]: Start difference. First operand 67622 states and 110779 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-22 17:18:30,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:18:30,423 INFO L93 Difference]: Finished difference Result 133107 states and 218465 transitions. [2022-07-22 17:18:30,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-22 17:18:30,423 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 112 [2022-07-22 17:18:30,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:18:30,837 INFO L225 Difference]: With dead ends: 133107 [2022-07-22 17:18:30,837 INFO L226 Difference]: Without dead ends: 132862 [2022-07-22 17:18:30,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=218, Invalid=538, Unknown=0, NotChecked=0, Total=756 [2022-07-22 17:18:30,879 INFO L413 NwaCegarLoop]: 369 mSDtfsCounter, 1302 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 1680 mSolverCounterSat, 507 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1319 SdHoareTripleChecker+Valid, 970 SdHoareTripleChecker+Invalid, 2187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 507 IncrementalHoareTripleChecker+Valid, 1680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-22 17:18:30,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1319 Valid, 970 Invalid, 2187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [507 Valid, 1680 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-22 17:18:30,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132862 states. [2022-07-22 17:18:35,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132862 to 132322. [2022-07-22 17:18:35,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132322 states, 125753 states have (on average 1.621869855987531) internal successors, (203955), 125766 states have internal predecessors, (203955), 6513 states have call successors, (6513), 40 states have call predecessors, (6513), 55 states have return successors, (6572), 6515 states have call predecessors, (6572), 6509 states have call successors, (6572) [2022-07-22 17:18:36,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132322 states to 132322 states and 217040 transitions. [2022-07-22 17:18:36,087 INFO L78 Accepts]: Start accepts. Automaton has 132322 states and 217040 transitions. Word has length 112 [2022-07-22 17:18:36,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:18:36,087 INFO L495 AbstractCegarLoop]: Abstraction has 132322 states and 217040 transitions. [2022-07-22 17:18:36,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-22 17:18:36,088 INFO L276 IsEmpty]: Start isEmpty. Operand 132322 states and 217040 transitions. [2022-07-22 17:18:36,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-07-22 17:18:36,152 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:18:36,162 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-22 17:18:36,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-22 17:18:36,162 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:18:36,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:18:36,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1059166913, now seen corresponding path program 1 times [2022-07-22 17:18:36,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:18:36,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750752845] [2022-07-22 17:18:36,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:18:36,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:18:36,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:36,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 17:18:36,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:36,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 17:18:36,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:36,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-22 17:18:36,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:36,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-22 17:18:36,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:36,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-22 17:18:36,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:36,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-22 17:18:36,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:36,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-22 17:18:36,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:36,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-22 17:18:36,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:36,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-22 17:18:36,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:36,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-22 17:18:36,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:36,304 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-22 17:18:36,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:18:36,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750752845] [2022-07-22 17:18:36,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750752845] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 17:18:36,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [895010188] [2022-07-22 17:18:36,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:18:36,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 17:18:36,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 17:18:36,330 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) [2022-07-22 17:18:36,331 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-22 17:18:36,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:36,508 INFO L263 TraceCheckSpWp]: Trace formula consists of 969 conjuncts, 14 conjunts are in the unsatisfiable core [2022-07-22 17:18:36,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 17:18:36,643 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-07-22 17:18:36,644 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 17:18:36,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [895010188] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:18:36,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 17:18:36,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [14] total 24 [2022-07-22 17:18:36,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034899875] [2022-07-22 17:18:36,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:18:36,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-22 17:18:36,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:18:36,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-22 17:18:36,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=501, Unknown=0, NotChecked=0, Total=552 [2022-07-22 17:18:36,646 INFO L87 Difference]: Start difference. First operand 132322 states and 217040 transitions. Second operand has 12 states, 10 states have (on average 8.1) internal successors, (81), 10 states have internal predecessors, (81), 7 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (10), 5 states have call predecessors, (10), 6 states have call successors, (10) [2022-07-22 17:18:40,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:18:40,631 INFO L93 Difference]: Finished difference Result 133246 states and 218480 transitions. [2022-07-22 17:18:40,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-22 17:18:40,632 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 8.1) internal successors, (81), 10 states have internal predecessors, (81), 7 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (10), 5 states have call predecessors, (10), 6 states have call successors, (10) Word has length 112 [2022-07-22 17:18:40,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:18:41,011 INFO L225 Difference]: With dead ends: 133246 [2022-07-22 17:18:41,011 INFO L226 Difference]: Without dead ends: 132676 [2022-07-22 17:18:41,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=791, Unknown=0, NotChecked=0, Total=870 [2022-07-22 17:18:41,060 INFO L413 NwaCegarLoop]: 299 mSDtfsCounter, 148 mSDsluCounter, 2847 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 3146 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 17:18:41,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 3146 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 17:18:41,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132676 states. [2022-07-22 17:18:45,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132676 to 132664. [2022-07-22 17:18:45,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132664 states, 126009 states have (on average 1.6212254680221254) internal successors, (204289), 126030 states have internal predecessors, (204289), 6587 states have call successors, (6587), 48 states have call predecessors, (6587), 67 states have return successors, (6694), 6585 states have call predecessors, (6694), 6575 states have call successors, (6694) [2022-07-22 17:18:46,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132664 states to 132664 states and 217570 transitions. [2022-07-22 17:18:46,343 INFO L78 Accepts]: Start accepts. Automaton has 132664 states and 217570 transitions. Word has length 112 [2022-07-22 17:18:46,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:18:46,344 INFO L495 AbstractCegarLoop]: Abstraction has 132664 states and 217570 transitions. [2022-07-22 17:18:46,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 8.1) internal successors, (81), 10 states have internal predecessors, (81), 7 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (10), 5 states have call predecessors, (10), 6 states have call successors, (10) [2022-07-22 17:18:46,344 INFO L276 IsEmpty]: Start isEmpty. Operand 132664 states and 217570 transitions. [2022-07-22 17:18:46,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-07-22 17:18:46,408 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:18:46,408 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-22 17:18:46,426 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-07-22 17:18:46,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 17:18:46,624 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:18:46,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:18:46,624 INFO L85 PathProgramCache]: Analyzing trace with hash -978889376, now seen corresponding path program 1 times [2022-07-22 17:18:46,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:18:46,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91461069] [2022-07-22 17:18:46,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:18:46,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:18:46,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:46,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 17:18:46,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:46,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 17:18:46,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:46,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-22 17:18:46,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:46,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-22 17:18:46,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:46,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-22 17:18:46,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:46,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-22 17:18:46,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:46,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-22 17:18:46,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:46,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-22 17:18:46,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:46,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-22 17:18:46,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:46,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-22 17:18:46,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:18:46,739 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-22 17:18:46,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:18:46,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91461069] [2022-07-22 17:18:46,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91461069] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:18:46,739 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:18:46,740 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-22 17:18:46,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648107831] [2022-07-22 17:18:46,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:18:46,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-22 17:18:46,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:18:46,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-22 17:18:46,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-07-22 17:18:46,741 INFO L87 Difference]: Start difference. First operand 132664 states and 217570 transitions. Second operand has 11 states, 11 states have (on average 7.090909090909091) internal successors, (78), 7 states have internal predecessors, (78), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10)