./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec0_product26.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72b0234-7aeb-406d-9680-b2fc9967433e/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72b0234-7aeb-406d-9680-b2fc9967433e/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72b0234-7aeb-406d-9680-b2fc9967433e/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72b0234-7aeb-406d-9680-b2fc9967433e/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec0_product26.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72b0234-7aeb-406d-9680-b2fc9967433e/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72b0234-7aeb-406d-9680-b2fc9967433e/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --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 2214b99fc6848bca0f24e9e72f44d1848092675b0f72a15c952711ed7656fcb1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:07:16,408 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:07:16,502 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72b0234-7aeb-406d-9680-b2fc9967433e/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-27 20:07:16,510 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:07:16,511 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:07:16,554 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:07:16,555 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:07:16,555 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:07:16,556 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:07:16,557 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:07:16,558 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:07:16,558 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:07:16,559 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:07:16,559 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:07:16,559 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:07:16,559 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:07:16,560 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 20:07:16,560 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:07:16,560 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:07:16,561 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:07:16,561 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:07:16,561 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 20:07:16,561 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:07:16,561 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 20:07:16,561 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:07:16,561 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:07:16,562 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:07:16,562 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:07:16,562 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:07:16,562 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:07:16,562 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:07:16,562 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:07:16,562 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:07:16,562 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:07:16,563 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:07:16,563 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:07:16,563 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:07:16,563 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:07:16,563 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:07:16,563 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:07:16,563 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 20:07:16,563 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 20:07:16,563 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 20:07:16,563 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 20:07:16,563 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:07:16,564 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:07:16,564 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:07:16,564 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:07:16,564 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72b0234-7aeb-406d-9680-b2fc9967433e/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness 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 -> 2214b99fc6848bca0f24e9e72f44d1848092675b0f72a15c952711ed7656fcb1 [2024-11-27 20:07:16,938 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:07:16,950 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:07:16,954 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:07:16,956 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:07:16,956 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:07:16,957 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72b0234-7aeb-406d-9680-b2fc9967433e/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/product-lines/email_spec0_product26.cil.c [2024-11-27 20:07:20,044 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72b0234-7aeb-406d-9680-b2fc9967433e/bin/uautomizer-verify-aQ6SnzHsRB/data/e50cd5be8/d43f131310de4b0c831548ee8b0a5181/FLAGd7ad54cc6 [2024-11-27 20:07:20,567 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:07:20,568 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72b0234-7aeb-406d-9680-b2fc9967433e/sv-benchmarks/c/product-lines/email_spec0_product26.cil.c [2024-11-27 20:07:20,591 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72b0234-7aeb-406d-9680-b2fc9967433e/bin/uautomizer-verify-aQ6SnzHsRB/data/e50cd5be8/d43f131310de4b0c831548ee8b0a5181/FLAGd7ad54cc6 [2024-11-27 20:07:20,619 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72b0234-7aeb-406d-9680-b2fc9967433e/bin/uautomizer-verify-aQ6SnzHsRB/data/e50cd5be8/d43f131310de4b0c831548ee8b0a5181 [2024-11-27 20:07:20,622 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:07:20,625 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:07:20,628 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:07:20,628 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:07:20,634 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:07:20,635 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:07:20" (1/1) ... [2024-11-27 20:07:20,637 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c7da0ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:07:20, skipping insertion in model container [2024-11-27 20:07:20,639 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:07:20" (1/1) ... [2024-11-27 20:07:20,730 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:07:21,444 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72b0234-7aeb-406d-9680-b2fc9967433e/sv-benchmarks/c/product-lines/email_spec0_product26.cil.c[63882,63895] [2024-11-27 20:07:21,451 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:07:21,462 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:07:21,471 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [48] [2024-11-27 20:07:21,472 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [424] [2024-11-27 20:07:21,472 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [828] [2024-11-27 20:07:21,472 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1152] [2024-11-27 20:07:21,472 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1374] [2024-11-27 20:07:21,473 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1477] [2024-11-27 20:07:21,473 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1512] [2024-11-27 20:07:21,473 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptForward_spec.i","") [2572] [2024-11-27 20:07:21,473 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2592] [2024-11-27 20:07:21,473 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2958] [2024-11-27 20:07:21,473 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2975] [2024-11-27 20:07:21,645 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72b0234-7aeb-406d-9680-b2fc9967433e/sv-benchmarks/c/product-lines/email_spec0_product26.cil.c[63882,63895] [2024-11-27 20:07:21,646 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:07:21,682 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:07:21,683 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:07:21 WrapperNode [2024-11-27 20:07:21,683 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:07:21,684 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:07:21,684 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:07:21,684 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:07:21,693 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:07:21" (1/1) ... [2024-11-27 20:07:21,723 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:07:21" (1/1) ... [2024-11-27 20:07:21,806 INFO L138 Inliner]: procedures = 131, calls = 204, calls flagged for inlining = 59, calls inlined = 56, statements flattened = 1088 [2024-11-27 20:07:21,806 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:07:21,807 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:07:21,807 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:07:21,807 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:07:21,819 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:07:21" (1/1) ... [2024-11-27 20:07:21,819 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:07:21" (1/1) ... [2024-11-27 20:07:21,825 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:07:21" (1/1) ... [2024-11-27 20:07:21,857 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4]. 29 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0]. [2024-11-27 20:07:21,858 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:07:21" (1/1) ... [2024-11-27 20:07:21,858 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:07:21" (1/1) ... [2024-11-27 20:07:21,875 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:07:21" (1/1) ... [2024-11-27 20:07:21,877 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:07:21" (1/1) ... [2024-11-27 20:07:21,886 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:07:21" (1/1) ... [2024-11-27 20:07:21,890 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:07:21" (1/1) ... [2024-11-27 20:07:21,894 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:07:21" (1/1) ... [2024-11-27 20:07:21,906 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:07:21,907 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:07:21,907 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:07:21,907 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:07:21,908 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:07:21" (1/1) ... [2024-11-27 20:07:21,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:07:21,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72b0234-7aeb-406d-9680-b2fc9967433e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:07:21,960 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72b0234-7aeb-406d-9680-b2fc9967433e/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:07:21,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72b0234-7aeb-406d-9680-b2fc9967433e/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:07:21,989 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2024-11-27 20:07:21,990 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2024-11-27 20:07:21,990 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-11-27 20:07:21,990 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-11-27 20:07:21,990 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2024-11-27 20:07:21,991 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2024-11-27 20:07:21,991 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-11-27 20:07:21,991 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-11-27 20:07:21,991 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-27 20:07:21,991 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-27 20:07:21,992 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2024-11-27 20:07:21,992 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2024-11-27 20:07:21,993 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-27 20:07:21,993 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-27 20:07:21,993 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-27 20:07:21,993 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-27 20:07:21,993 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-27 20:07:21,993 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-27 20:07:21,993 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-11-27 20:07:21,993 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-11-27 20:07:21,994 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-27 20:07:21,994 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-27 20:07:21,994 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-27 20:07:21,996 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-27 20:07:21,996 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2024-11-27 20:07:21,996 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2024-11-27 20:07:21,996 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-27 20:07:21,996 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-27 20:07:21,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:07:21,996 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2024-11-27 20:07:21,996 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2024-11-27 20:07:21,996 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-27 20:07:21,996 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-27 20:07:21,996 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-27 20:07:21,996 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-27 20:07:21,997 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-27 20:07:21,997 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-27 20:07:21,997 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-27 20:07:21,997 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-27 20:07:21,997 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-11-27 20:07:21,997 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-11-27 20:07:21,997 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-27 20:07:21,997 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-27 20:07:21,997 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-27 20:07:21,997 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-27 20:07:21,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 20:07:21,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-27 20:07:21,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-27 20:07:21,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-27 20:07:21,998 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-27 20:07:21,998 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-27 20:07:21,998 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2024-11-27 20:07:21,998 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2024-11-27 20:07:21,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:07:21,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:07:22,274 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:07:22,277 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:07:23,862 INFO L? ?]: Removed 537 outVars from TransFormulas that were not future-live. [2024-11-27 20:07:23,862 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:07:23,885 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:07:23,885 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-27 20:07:23,885 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:07:23 BoogieIcfgContainer [2024-11-27 20:07:23,886 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:07:23,888 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:07:23,888 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:07:23,898 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:07:23,900 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:07:20" (1/3) ... [2024-11-27 20:07:23,901 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20a32acc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:07:23, skipping insertion in model container [2024-11-27 20:07:23,901 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:07:21" (2/3) ... [2024-11-27 20:07:23,901 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20a32acc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:07:23, skipping insertion in model container [2024-11-27 20:07:23,901 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:07:23" (3/3) ... [2024-11-27 20:07:23,903 INFO L128 eAbstractionObserver]: Analyzing ICFG email_spec0_product26.cil.c [2024-11-27 20:07:23,922 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:07:23,927 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG email_spec0_product26.cil.c that has 25 procedures, 399 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-27 20:07:24,044 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:07:24,067 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7211ad0d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:07:24,067 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 20:07:24,075 INFO L276 IsEmpty]: Start isEmpty. Operand has 399 states, 311 states have (on average 1.562700964630225) internal successors, (486), 316 states have internal predecessors, (486), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-27 20:07:24,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-27 20:07:24,114 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:07:24,115 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:07:24,116 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:07:24,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:24,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1928085232, now seen corresponding path program 1 times [2024-11-27 20:07:24,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:07:24,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734497850] [2024-11-27 20:07:24,137 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:24,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:24,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:25,510 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-27 20:07:25,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:07:25,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734497850] [2024-11-27 20:07:25,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734497850] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:07:25,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [569097153] [2024-11-27 20:07:25,515 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:25,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:07:25,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72b0234-7aeb-406d-9680-b2fc9967433e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:07:25,520 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72b0234-7aeb-406d-9680-b2fc9967433e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:07:25,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72b0234-7aeb-406d-9680-b2fc9967433e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 20:07:26,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:26,176 INFO L256 TraceCheckSpWp]: Trace formula consists of 1208 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-27 20:07:26,185 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:07:26,222 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-27 20:07:26,223 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:07:26,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [569097153] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:07:26,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:07:26,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 5 [2024-11-27 20:07:26,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041467337] [2024-11-27 20:07:26,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:07:26,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 20:07:26,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:07:26,264 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 20:07:26,265 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:07:26,269 INFO L87 Difference]: Start difference. First operand has 399 states, 311 states have (on average 1.562700964630225) internal successors, (486), 316 states have internal predecessors, (486), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) Second operand has 2 states, 2 states have (on average 40.5) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-27 20:07:26,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:07:26,364 INFO L93 Difference]: Finished difference Result 601 states and 903 transitions. [2024-11-27 20:07:26,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 20:07:26,367 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 40.5) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 147 [2024-11-27 20:07:26,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:07:26,385 INFO L225 Difference]: With dead ends: 601 [2024-11-27 20:07:26,386 INFO L226 Difference]: Without dead ends: 392 [2024-11-27 20:07:26,391 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:07:26,394 INFO L435 NwaCegarLoop]: 606 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, 606 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 [2024-11-27 20:07:26,395 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 606 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:07:26,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2024-11-27 20:07:26,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 392. [2024-11-27 20:07:26,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 305 states have (on average 1.5573770491803278) internal successors, (475), 309 states have internal predecessors, (475), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-27 20:07:26,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 598 transitions. [2024-11-27 20:07:26,487 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 598 transitions. Word has length 147 [2024-11-27 20:07:26,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:07:26,489 INFO L471 AbstractCegarLoop]: Abstraction has 392 states and 598 transitions. [2024-11-27 20:07:26,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 40.5) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-27 20:07:26,494 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 598 transitions. [2024-11-27 20:07:26,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-27 20:07:26,504 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:07:26,504 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:07:26,513 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72b0234-7aeb-406d-9680-b2fc9967433e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 20:07:26,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72b0234-7aeb-406d-9680-b2fc9967433e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:07:26,705 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:07:26,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:26,706 INFO L85 PathProgramCache]: Analyzing trace with hash -1965100418, now seen corresponding path program 1 times [2024-11-27 20:07:26,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:07:26,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881815299] [2024-11-27 20:07:26,706 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:26,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:26,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:27,143 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-27 20:07:27,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:07:27,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881815299] [2024-11-27 20:07:27,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881815299] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:07:27,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1913553467] [2024-11-27 20:07:27,144 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:27,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:07:27,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72b0234-7aeb-406d-9680-b2fc9967433e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:07:27,149 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72b0234-7aeb-406d-9680-b2fc9967433e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:07:27,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72b0234-7aeb-406d-9680-b2fc9967433e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 20:07:27,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:27,674 INFO L256 TraceCheckSpWp]: Trace formula consists of 1130 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-27 20:07:27,689 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:07:27,798 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-27 20:07:27,798 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:07:27,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1913553467] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:07:27,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:07:27,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-27 20:07:27,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12814096] [2024-11-27 20:07:27,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:07:27,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:07:27,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:07:27,801 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:07:27,803 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:07:27,804 INFO L87 Difference]: Start difference. First operand 392 states and 598 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-27 20:07:27,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:07:27,894 INFO L93 Difference]: Finished difference Result 590 states and 880 transitions. [2024-11-27 20:07:27,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:07:27,895 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 128 [2024-11-27 20:07:27,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:07:27,901 INFO L225 Difference]: With dead ends: 590 [2024-11-27 20:07:27,902 INFO L226 Difference]: Without dead ends: 394 [2024-11-27 20:07:27,908 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:07:27,909 INFO L435 NwaCegarLoop]: 596 mSDtfsCounter, 1 mSDsluCounter, 594 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1190 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 [2024-11-27 20:07:27,909 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1190 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:07:27,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2024-11-27 20:07:27,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 393. [2024-11-27 20:07:27,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 306 states have (on average 1.5555555555555556) internal successors, (476), 310 states have internal predecessors, (476), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-27 20:07:27,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 599 transitions. [2024-11-27 20:07:27,973 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 599 transitions. Word has length 128 [2024-11-27 20:07:27,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:07:27,974 INFO L471 AbstractCegarLoop]: Abstraction has 393 states and 599 transitions. [2024-11-27 20:07:27,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-27 20:07:27,974 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 599 transitions. [2024-11-27 20:07:27,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-27 20:07:27,981 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:07:27,982 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:07:27,995 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72b0234-7aeb-406d-9680-b2fc9967433e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 20:07:28,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72b0234-7aeb-406d-9680-b2fc9967433e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:07:28,184 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:07:28,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:28,185 INFO L85 PathProgramCache]: Analyzing trace with hash 42332659, now seen corresponding path program 1 times [2024-11-27 20:07:28,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:07:28,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173309781] [2024-11-27 20:07:28,185 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:28,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:28,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:28,564 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-27 20:07:28,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:07:28,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173309781] [2024-11-27 20:07:28,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173309781] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:07:28,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1924621063] [2024-11-27 20:07:28,565 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:28,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:07:28,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72b0234-7aeb-406d-9680-b2fc9967433e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:07:28,567 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72b0234-7aeb-406d-9680-b2fc9967433e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:07:28,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72b0234-7aeb-406d-9680-b2fc9967433e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 20:07:29,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:29,021 INFO L256 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:07:29,026 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:07:29,051 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-27 20:07:29,051 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:07:29,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1924621063] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:07:29,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:07:29,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-27 20:07:29,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009612216] [2024-11-27 20:07:29,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:07:29,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:07:29,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:07:29,053 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:07:29,053 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:07:29,053 INFO L87 Difference]: Start difference. First operand 393 states and 599 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-27 20:07:29,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:07:29,125 INFO L93 Difference]: Finished difference Result 839 states and 1298 transitions. [2024-11-27 20:07:29,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:07:29,128 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 155 [2024-11-27 20:07:29,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:07:29,136 INFO L225 Difference]: With dead ends: 839 [2024-11-27 20:07:29,136 INFO L226 Difference]: Without dead ends: 472 [2024-11-27 20:07:29,138 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:07:29,138 INFO L435 NwaCegarLoop]: 611 mSDtfsCounter, 142 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 1161 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:07:29,140 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 1161 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:07:29,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2024-11-27 20:07:29,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 464. [2024-11-27 20:07:29,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 464 states, 363 states have (on average 1.5757575757575757) internal successors, (572), 367 states have internal predecessors, (572), 76 states have call successors, (76), 24 states have call predecessors, (76), 24 states have return successors, (75), 74 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-27 20:07:29,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 723 transitions. [2024-11-27 20:07:29,185 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 723 transitions. Word has length 155 [2024-11-27 20:07:29,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:07:29,186 INFO L471 AbstractCegarLoop]: Abstraction has 464 states and 723 transitions. [2024-11-27 20:07:29,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-27 20:07:29,186 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 723 transitions. [2024-11-27 20:07:29,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-27 20:07:29,191 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:07:29,191 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:07:29,203 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72b0234-7aeb-406d-9680-b2fc9967433e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-27 20:07:29,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72b0234-7aeb-406d-9680-b2fc9967433e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:07:29,395 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:07:29,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:29,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1563329785, now seen corresponding path program 1 times [2024-11-27 20:07:29,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:07:29,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115964824] [2024-11-27 20:07:29,396 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:29,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:29,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:29,747 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-27 20:07:29,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:07:29,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115964824] [2024-11-27 20:07:29,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115964824] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:07:29,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1081197531] [2024-11-27 20:07:29,748 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:29,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:07:29,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72b0234-7aeb-406d-9680-b2fc9967433e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:07:29,755 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72b0234-7aeb-406d-9680-b2fc9967433e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:07:29,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72b0234-7aeb-406d-9680-b2fc9967433e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 20:07:30,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:30,229 INFO L256 TraceCheckSpWp]: Trace formula consists of 1159 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 20:07:30,235 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:07:30,334 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-27 20:07:30,334 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:07:30,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1081197531] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:07:30,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:07:30,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-27 20:07:30,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478129848] [2024-11-27 20:07:30,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:07:30,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:07:30,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:07:30,338 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:07:30,340 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:07:30,341 INFO L87 Difference]: Start difference. First operand 464 states and 723 transitions. Second operand has 5 states, 4 states have (on average 23.0) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-27 20:07:30,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:07:30,475 INFO L93 Difference]: Finished difference Result 919 states and 1436 transitions. [2024-11-27 20:07:30,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:07:30,476 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 23.0) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 137 [2024-11-27 20:07:30,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:07:30,481 INFO L225 Difference]: With dead ends: 919 [2024-11-27 20:07:30,481 INFO L226 Difference]: Without dead ends: 466 [2024-11-27 20:07:30,483 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:07:30,484 INFO L435 NwaCegarLoop]: 590 mSDtfsCounter, 2 mSDsluCounter, 1759 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2349 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:07:30,484 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2349 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:07:30,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2024-11-27 20:07:30,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 466. [2024-11-27 20:07:30,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 364 states have (on average 1.5741758241758241) internal successors, (573), 369 states have internal predecessors, (573), 76 states have call successors, (76), 24 states have call predecessors, (76), 25 states have return successors, (77), 74 states have call predecessors, (77), 75 states have call successors, (77) [2024-11-27 20:07:30,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 726 transitions. [2024-11-27 20:07:30,515 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 726 transitions. Word has length 137 [2024-11-27 20:07:30,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:07:30,516 INFO L471 AbstractCegarLoop]: Abstraction has 466 states and 726 transitions. [2024-11-27 20:07:30,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 23.0) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-27 20:07:30,516 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 726 transitions. [2024-11-27 20:07:30,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-27 20:07:30,521 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:07:30,521 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:07:30,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72b0234-7aeb-406d-9680-b2fc9967433e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-27 20:07:30,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72b0234-7aeb-406d-9680-b2fc9967433e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:07:30,722 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:07:30,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:30,723 INFO L85 PathProgramCache]: Analyzing trace with hash -190469935, now seen corresponding path program 1 times [2024-11-27 20:07:30,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:07:30,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994102068] [2024-11-27 20:07:30,724 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:30,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:30,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:31,054 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-27 20:07:31,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:07:31,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994102068] [2024-11-27 20:07:31,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994102068] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:07:31,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [682439015] [2024-11-27 20:07:31,055 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:31,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:07:31,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72b0234-7aeb-406d-9680-b2fc9967433e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:07:31,058 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72b0234-7aeb-406d-9680-b2fc9967433e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:07:31,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72b0234-7aeb-406d-9680-b2fc9967433e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-27 20:07:31,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:31,566 INFO L256 TraceCheckSpWp]: Trace formula consists of 1238 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 20:07:31,575 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:07:31,669 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-27 20:07:31,670 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:07:31,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [682439015] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:07:31,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:07:31,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2024-11-27 20:07:31,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721185809] [2024-11-27 20:07:31,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:07:31,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:07:31,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:07:31,671 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:07:31,677 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-27 20:07:31,678 INFO L87 Difference]: Start difference. First operand 466 states and 726 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-27 20:07:31,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:07:31,809 INFO L93 Difference]: Finished difference Result 921 states and 1441 transitions. [2024-11-27 20:07:31,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:07:31,809 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 157 [2024-11-27 20:07:31,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:07:31,816 INFO L225 Difference]: With dead ends: 921 [2024-11-27 20:07:31,817 INFO L226 Difference]: Without dead ends: 468 [2024-11-27 20:07:31,821 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-27 20:07:31,822 INFO L435 NwaCegarLoop]: 588 mSDtfsCounter, 2 mSDsluCounter, 1747 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2335 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:07:31,825 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2335 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:07:31,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2024-11-27 20:07:31,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 468. [2024-11-27 20:07:31,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 365 states have (on average 1.5726027397260274) internal successors, (574), 371 states have internal predecessors, (574), 76 states have call successors, (76), 24 states have call predecessors, (76), 26 states have return successors, (82), 74 states have call predecessors, (82), 75 states have call successors, (82) [2024-11-27 20:07:31,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 732 transitions. [2024-11-27 20:07:31,879 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 732 transitions. Word has length 157 [2024-11-27 20:07:31,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:07:31,880 INFO L471 AbstractCegarLoop]: Abstraction has 468 states and 732 transitions. [2024-11-27 20:07:31,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-27 20:07:31,880 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 732 transitions. [2024-11-27 20:07:31,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-27 20:07:31,886 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:07:31,886 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:07:31,899 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72b0234-7aeb-406d-9680-b2fc9967433e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-27 20:07:32,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72b0234-7aeb-406d-9680-b2fc9967433e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:07:32,087 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:07:32,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:32,087 INFO L85 PathProgramCache]: Analyzing trace with hash -95854871, now seen corresponding path program 1 times [2024-11-27 20:07:32,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:07:32,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680215567] [2024-11-27 20:07:32,088 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:32,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:32,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:32,394 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-27 20:07:32,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:07:32,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680215567] [2024-11-27 20:07:32,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680215567] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:07:32,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:07:32,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:07:32,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49708016] [2024-11-27 20:07:32,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:07:32,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:07:32,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:07:32,398 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:07:32,398 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:07:32,398 INFO L87 Difference]: Start difference. First operand 468 states and 732 transitions. Second operand has 5 states, 4 states have (on average 22.5) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-27 20:07:32,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:07:32,484 INFO L93 Difference]: Finished difference Result 913 states and 1432 transitions. [2024-11-27 20:07:32,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:07:32,485 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 22.5) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 139 [2024-11-27 20:07:32,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:07:32,490 INFO L225 Difference]: With dead ends: 913 [2024-11-27 20:07:32,490 INFO L226 Difference]: Without dead ends: 468 [2024-11-27 20:07:32,492 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:07:32,494 INFO L435 NwaCegarLoop]: 591 mSDtfsCounter, 2 mSDsluCounter, 1762 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2353 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:07:32,494 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2353 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:07:32,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2024-11-27 20:07:32,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 468. [2024-11-27 20:07:32,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 365 states have (on average 1.5726027397260274) internal successors, (574), 371 states have internal predecessors, (574), 76 states have call successors, (76), 24 states have call predecessors, (76), 26 states have return successors, (81), 74 states have call predecessors, (81), 75 states have call successors, (81) [2024-11-27 20:07:32,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 731 transitions. [2024-11-27 20:07:32,525 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 731 transitions. Word has length 139 [2024-11-27 20:07:32,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:07:32,526 INFO L471 AbstractCegarLoop]: Abstraction has 468 states and 731 transitions. [2024-11-27 20:07:32,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 22.5) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-27 20:07:32,526 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 731 transitions. [2024-11-27 20:07:32,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-27 20:07:32,530 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:07:32,530 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:07:32,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 20:07:32,531 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:07:32,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:32,532 INFO L85 PathProgramCache]: Analyzing trace with hash -954518093, now seen corresponding path program 2 times [2024-11-27 20:07:32,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:07:32,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872358133] [2024-11-27 20:07:32,532 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:07:32,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:32,580 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 20:07:32,581 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:07:32,704 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-27 20:07:32,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:07:32,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872358133] [2024-11-27 20:07:32,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872358133] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:07:32,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:07:32,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:07:32,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962061596] [2024-11-27 20:07:32,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:07:32,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:07:32,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:07:32,706 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:07:32,706 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:07:32,707 INFO L87 Difference]: Start difference. First operand 468 states and 731 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-27 20:07:32,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:07:32,816 INFO L93 Difference]: Finished difference Result 990 states and 1558 transitions. [2024-11-27 20:07:32,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:07:32,817 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 140 [2024-11-27 20:07:32,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:07:32,824 INFO L225 Difference]: With dead ends: 990 [2024-11-27 20:07:32,825 INFO L226 Difference]: Without dead ends: 802 [2024-11-27 20:07:32,826 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:07:32,827 INFO L435 NwaCegarLoop]: 602 mSDtfsCounter, 550 mSDsluCounter, 1611 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 550 SdHoareTripleChecker+Valid, 2213 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:07:32,828 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [550 Valid, 2213 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:07:32,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 802 states. [2024-11-27 20:07:32,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 802 to 800. [2024-11-27 20:07:32,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 800 states, 633 states have (on average 1.6145339652448658) internal successors, (1022), 642 states have internal predecessors, (1022), 125 states have call successors, (125), 42 states have call predecessors, (125), 41 states have return successors, (130), 118 states have call predecessors, (130), 124 states have call successors, (130) [2024-11-27 20:07:32,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 800 states to 800 states and 1277 transitions. [2024-11-27 20:07:32,889 INFO L78 Accepts]: Start accepts. Automaton has 800 states and 1277 transitions. Word has length 140 [2024-11-27 20:07:32,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:07:32,890 INFO L471 AbstractCegarLoop]: Abstraction has 800 states and 1277 transitions. [2024-11-27 20:07:32,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-27 20:07:32,890 INFO L276 IsEmpty]: Start isEmpty. Operand 800 states and 1277 transitions. [2024-11-27 20:07:32,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-27 20:07:32,897 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:07:32,897 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:07:32,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 20:07:32,898 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:07:32,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:32,898 INFO L85 PathProgramCache]: Analyzing trace with hash -1077701641, now seen corresponding path program 1 times [2024-11-27 20:07:32,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:07:32,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771000429] [2024-11-27 20:07:32,899 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:32,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:32,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:33,186 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-27 20:07:33,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:07:33,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771000429] [2024-11-27 20:07:33,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771000429] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:07:33,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:07:33,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:07:33,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878322288] [2024-11-27 20:07:33,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:07:33,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:07:33,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:07:33,188 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:07:33,188 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:07:33,188 INFO L87 Difference]: Start difference. First operand 800 states and 1277 transitions. Second operand has 5 states, 4 states have (on average 23.0) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-27 20:07:33,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:07:33,277 INFO L93 Difference]: Finished difference Result 1579 states and 2527 transitions. [2024-11-27 20:07:33,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:07:33,277 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 23.0) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 141 [2024-11-27 20:07:33,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:07:33,284 INFO L225 Difference]: With dead ends: 1579 [2024-11-27 20:07:33,285 INFO L226 Difference]: Without dead ends: 802 [2024-11-27 20:07:33,287 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:07:33,289 INFO L435 NwaCegarLoop]: 592 mSDtfsCounter, 1 mSDsluCounter, 1764 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2356 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:07:33,289 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2356 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:07:33,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 802 states. [2024-11-27 20:07:33,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 802 to 802. [2024-11-27 20:07:33,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 802 states, 634 states have (on average 1.613564668769716) internal successors, (1023), 644 states have internal predecessors, (1023), 125 states have call successors, (125), 42 states have call predecessors, (125), 42 states have return successors, (132), 118 states have call predecessors, (132), 124 states have call successors, (132) [2024-11-27 20:07:33,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 802 states to 802 states and 1280 transitions. [2024-11-27 20:07:33,345 INFO L78 Accepts]: Start accepts. Automaton has 802 states and 1280 transitions. Word has length 141 [2024-11-27 20:07:33,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:07:33,345 INFO L471 AbstractCegarLoop]: Abstraction has 802 states and 1280 transitions. [2024-11-27 20:07:33,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 23.0) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-27 20:07:33,345 INFO L276 IsEmpty]: Start isEmpty. Operand 802 states and 1280 transitions. [2024-11-27 20:07:33,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-27 20:07:33,351 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:07:33,351 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:07:33,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 20:07:33,352 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:07:33,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:33,352 INFO L85 PathProgramCache]: Analyzing trace with hash -233292914, now seen corresponding path program 1 times [2024-11-27 20:07:33,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:07:33,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108193065] [2024-11-27 20:07:33,353 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:33,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:33,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:33,616 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-27 20:07:33,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:07:33,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108193065] [2024-11-27 20:07:33,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108193065] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:07:33,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:07:33,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 20:07:33,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31619920] [2024-11-27 20:07:33,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:07:33,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 20:07:33,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:07:33,618 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 20:07:33,618 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:07:33,618 INFO L87 Difference]: Start difference. First operand 802 states and 1280 transitions. Second operand has 8 states, 7 states have (on average 14.285714285714286) internal successors, (100), 8 states have internal predecessors, (100), 4 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-27 20:07:33,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:07:33,879 INFO L93 Difference]: Finished difference Result 1583 states and 2530 transitions. [2024-11-27 20:07:33,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 20:07:33,880 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 14.285714285714286) internal successors, (100), 8 states have internal predecessors, (100), 4 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) Word has length 146 [2024-11-27 20:07:33,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:07:33,886 INFO L225 Difference]: With dead ends: 1583 [2024-11-27 20:07:33,886 INFO L226 Difference]: Without dead ends: 806 [2024-11-27 20:07:33,889 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:07:33,890 INFO L435 NwaCegarLoop]: 582 mSDtfsCounter, 7 mSDsluCounter, 3463 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 4045 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:07:33,891 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 4045 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:07:33,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states. [2024-11-27 20:07:33,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 804. [2024-11-27 20:07:33,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 804 states, 636 states have (on average 1.6116352201257862) internal successors, (1025), 645 states have internal predecessors, (1025), 125 states have call successors, (125), 43 states have call predecessors, (125), 42 states have return successors, (131), 118 states have call predecessors, (131), 124 states have call successors, (131) [2024-11-27 20:07:33,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 804 states to 804 states and 1281 transitions. [2024-11-27 20:07:33,942 INFO L78 Accepts]: Start accepts. Automaton has 804 states and 1281 transitions. Word has length 146 [2024-11-27 20:07:33,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:07:33,943 INFO L471 AbstractCegarLoop]: Abstraction has 804 states and 1281 transitions. [2024-11-27 20:07:33,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 14.285714285714286) internal successors, (100), 8 states have internal predecessors, (100), 4 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-27 20:07:33,943 INFO L276 IsEmpty]: Start isEmpty. Operand 804 states and 1281 transitions. [2024-11-27 20:07:33,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-27 20:07:33,949 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:07:33,949 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:07:33,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-27 20:07:33,949 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:07:33,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:33,950 INFO L85 PathProgramCache]: Analyzing trace with hash -1415042158, now seen corresponding path program 1 times [2024-11-27 20:07:33,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:07:33,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024279377] [2024-11-27 20:07:33,950 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:33,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:33,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:34,216 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-27 20:07:34,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:07:34,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024279377] [2024-11-27 20:07:34,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024279377] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:07:34,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:07:34,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 20:07:34,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112278366] [2024-11-27 20:07:34,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:07:34,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 20:07:34,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:07:34,218 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 20:07:34,218 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:07:34,218 INFO L87 Difference]: Start difference. First operand 804 states and 1281 transitions. Second operand has 8 states, 7 states have (on average 14.857142857142858) internal successors, (104), 8 states have internal predecessors, (104), 4 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-27 20:07:34,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:07:34,441 INFO L93 Difference]: Finished difference Result 1586 states and 2537 transitions. [2024-11-27 20:07:34,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 20:07:34,442 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 14.857142857142858) internal successors, (104), 8 states have internal predecessors, (104), 4 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 162 [2024-11-27 20:07:34,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:07:34,449 INFO L225 Difference]: With dead ends: 1586 [2024-11-27 20:07:34,449 INFO L226 Difference]: Without dead ends: 809 [2024-11-27 20:07:34,453 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:07:34,453 INFO L435 NwaCegarLoop]: 584 mSDtfsCounter, 5 mSDsluCounter, 3475 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 4059 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:07:34,454 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 4059 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:07:34,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 809 states. [2024-11-27 20:07:34,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 809 to 807. [2024-11-27 20:07:34,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 807 states, 638 states have (on average 1.609717868338558) internal successors, (1027), 648 states have internal predecessors, (1027), 125 states have call successors, (125), 43 states have call predecessors, (125), 43 states have return successors, (136), 118 states have call predecessors, (136), 124 states have call successors, (136) [2024-11-27 20:07:34,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807 states to 807 states and 1288 transitions. [2024-11-27 20:07:34,513 INFO L78 Accepts]: Start accepts. Automaton has 807 states and 1288 transitions. Word has length 162 [2024-11-27 20:07:34,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:07:34,514 INFO L471 AbstractCegarLoop]: Abstraction has 807 states and 1288 transitions. [2024-11-27 20:07:34,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 14.857142857142858) internal successors, (104), 8 states have internal predecessors, (104), 4 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-27 20:07:34,514 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 1288 transitions. [2024-11-27 20:07:34,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-27 20:07:34,520 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:07:34,520 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:07:34,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-27 20:07:34,521 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:07:34,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:34,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1787620343, now seen corresponding path program 1 times [2024-11-27 20:07:34,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:07:34,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090547005] [2024-11-27 20:07:34,522 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:34,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:34,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:34,803 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-27 20:07:34,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:07:34,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090547005] [2024-11-27 20:07:34,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090547005] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:07:34,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1038323034] [2024-11-27 20:07:34,804 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:34,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:07:34,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72b0234-7aeb-406d-9680-b2fc9967433e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:07:34,806 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72b0234-7aeb-406d-9680-b2fc9967433e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:07:34,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72b0234-7aeb-406d-9680-b2fc9967433e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-27 20:07:35,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:35,217 INFO L256 TraceCheckSpWp]: Trace formula consists of 1166 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:07:35,221 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:07:35,270 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-27 20:07:35,270 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:07:35,396 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-27 20:07:35,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1038323034] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:07:35,397 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:07:35,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 11 [2024-11-27 20:07:35,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869516157] [2024-11-27 20:07:35,397 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:07:35,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 20:07:35,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:07:35,399 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 20:07:35,399 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-27 20:07:35,399 INFO L87 Difference]: Start difference. First operand 807 states and 1288 transitions. Second operand has 11 states, 10 states have (on average 14.2) internal successors, (142), 11 states have internal predecessors, (142), 4 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2024-11-27 20:07:36,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:07:36,404 INFO L93 Difference]: Finished difference Result 2323 states and 3828 transitions. [2024-11-27 20:07:36,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-27 20:07:36,405 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 14.2) internal successors, (142), 11 states have internal predecessors, (142), 4 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) Word has length 144 [2024-11-27 20:07:36,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:07:36,418 INFO L225 Difference]: With dead ends: 2323 [2024-11-27 20:07:36,418 INFO L226 Difference]: Without dead ends: 1547 [2024-11-27 20:07:36,422 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=106, Invalid=400, Unknown=0, NotChecked=0, Total=506 [2024-11-27 20:07:36,423 INFO L435 NwaCegarLoop]: 581 mSDtfsCounter, 1490 mSDsluCounter, 4074 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1490 SdHoareTripleChecker+Valid, 4655 SdHoareTripleChecker+Invalid, 707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 20:07:36,423 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1490 Valid, 4655 Invalid, 707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 20:07:36,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1547 states. [2024-11-27 20:07:36,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1547 to 1519. [2024-11-27 20:07:36,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1519 states, 1223 states have (on average 1.6369582992641047) internal successors, (2002), 1232 states have internal predecessors, (2002), 252 states have call successors, (252), 44 states have call predecessors, (252), 43 states have return successors, (273), 245 states have call predecessors, (273), 251 states have call successors, (273) [2024-11-27 20:07:36,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1519 states to 1519 states and 2527 transitions. [2024-11-27 20:07:36,583 INFO L78 Accepts]: Start accepts. Automaton has 1519 states and 2527 transitions. Word has length 144 [2024-11-27 20:07:36,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:07:36,585 INFO L471 AbstractCegarLoop]: Abstraction has 1519 states and 2527 transitions. [2024-11-27 20:07:36,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 14.2) internal successors, (142), 11 states have internal predecessors, (142), 4 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2024-11-27 20:07:36,585 INFO L276 IsEmpty]: Start isEmpty. Operand 1519 states and 2527 transitions. [2024-11-27 20:07:36,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-27 20:07:36,599 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:07:36,599 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:07:36,612 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72b0234-7aeb-406d-9680-b2fc9967433e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-27 20:07:36,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72b0234-7aeb-406d-9680-b2fc9967433e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:07:36,800 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:07:36,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:36,801 INFO L85 PathProgramCache]: Analyzing trace with hash 132466080, now seen corresponding path program 1 times [2024-11-27 20:07:36,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:07:36,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407916466] [2024-11-27 20:07:36,801 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:36,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:36,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:36,928 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-27 20:07:36,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:07:36,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407916466] [2024-11-27 20:07:36,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407916466] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:07:36,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:07:36,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:07:36,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840643605] [2024-11-27 20:07:36,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:07:36,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:07:36,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:07:36,930 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:07:36,931 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:07:36,931 INFO L87 Difference]: Start difference. First operand 1519 states and 2527 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-27 20:07:37,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:07:37,075 INFO L93 Difference]: Finished difference Result 3630 states and 6116 transitions. [2024-11-27 20:07:37,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:07:37,076 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 167 [2024-11-27 20:07:37,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:07:37,093 INFO L225 Difference]: With dead ends: 3630 [2024-11-27 20:07:37,093 INFO L226 Difference]: Without dead ends: 2192 [2024-11-27 20:07:37,100 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:07:37,101 INFO L435 NwaCegarLoop]: 610 mSDtfsCounter, 139 mSDsluCounter, 586 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 1196 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:07:37,101 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 1196 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:07:37,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2192 states. [2024-11-27 20:07:37,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2192 to 2182. [2024-11-27 20:07:37,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2182 states, 1759 states have (on average 1.648664013644116) internal successors, (2900), 1768 states have internal predecessors, (2900), 379 states have call successors, (379), 44 states have call predecessors, (379), 43 states have return successors, (410), 372 states have call predecessors, (410), 378 states have call successors, (410) [2024-11-27 20:07:37,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2182 states to 2182 states and 3689 transitions. [2024-11-27 20:07:37,267 INFO L78 Accepts]: Start accepts. Automaton has 2182 states and 3689 transitions. Word has length 167 [2024-11-27 20:07:37,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:07:37,268 INFO L471 AbstractCegarLoop]: Abstraction has 2182 states and 3689 transitions. [2024-11-27 20:07:37,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-27 20:07:37,268 INFO L276 IsEmpty]: Start isEmpty. Operand 2182 states and 3689 transitions. [2024-11-27 20:07:37,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-27 20:07:37,283 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:07:37,283 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:07:37,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-27 20:07:37,283 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:07:37,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:37,284 INFO L85 PathProgramCache]: Analyzing trace with hash -330002783, now seen corresponding path program 1 times [2024-11-27 20:07:37,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:07:37,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926826347] [2024-11-27 20:07:37,284 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:37,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:37,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:37,366 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-27 20:07:37,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:07:37,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926826347] [2024-11-27 20:07:37,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926826347] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:07:37,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:07:37,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:07:37,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521778807] [2024-11-27 20:07:37,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:07:37,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:07:37,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:07:37,368 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:07:37,368 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:07:37,368 INFO L87 Difference]: Start difference. First operand 2182 states and 3689 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-27 20:07:37,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:07:37,532 INFO L93 Difference]: Finished difference Result 5325 states and 9058 transitions. [2024-11-27 20:07:37,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:07:37,533 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 149 [2024-11-27 20:07:37,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:07:37,555 INFO L225 Difference]: With dead ends: 5325 [2024-11-27 20:07:37,556 INFO L226 Difference]: Without dead ends: 3275 [2024-11-27 20:07:37,564 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:07:37,565 INFO L435 NwaCegarLoop]: 596 mSDtfsCounter, 137 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 1186 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:07:37,565 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 1186 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:07:37,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3275 states. [2024-11-27 20:07:37,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3275 to 3265. [2024-11-27 20:07:37,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3265 states, 2649 states have (on average 1.6534541336353341) internal successors, (4380), 2658 states have internal predecessors, (4380), 572 states have call successors, (572), 44 states have call predecessors, (572), 43 states have return successors, (603), 565 states have call predecessors, (603), 571 states have call successors, (603) [2024-11-27 20:07:37,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3265 states to 3265 states and 5555 transitions. [2024-11-27 20:07:37,867 INFO L78 Accepts]: Start accepts. Automaton has 3265 states and 5555 transitions. Word has length 149 [2024-11-27 20:07:37,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:07:37,868 INFO L471 AbstractCegarLoop]: Abstraction has 3265 states and 5555 transitions. [2024-11-27 20:07:37,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-27 20:07:37,868 INFO L276 IsEmpty]: Start isEmpty. Operand 3265 states and 5555 transitions. [2024-11-27 20:07:37,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-27 20:07:37,899 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:07:37,900 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:07:37,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-27 20:07:37,900 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:07:37,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:37,901 INFO L85 PathProgramCache]: Analyzing trace with hash 647681394, now seen corresponding path program 1 times [2024-11-27 20:07:37,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:07:37,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631054100] [2024-11-27 20:07:37,902 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:37,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:37,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:38,009 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-27 20:07:38,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:07:38,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631054100] [2024-11-27 20:07:38,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631054100] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:07:38,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:07:38,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:07:38,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423298275] [2024-11-27 20:07:38,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:07:38,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:07:38,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:07:38,011 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:07:38,012 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:07:38,012 INFO L87 Difference]: Start difference. First operand 3265 states and 5555 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-27 20:07:38,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:07:38,296 INFO L93 Difference]: Finished difference Result 7996 states and 13696 transitions. [2024-11-27 20:07:38,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:07:38,296 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 169 [2024-11-27 20:07:38,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:07:38,334 INFO L225 Difference]: With dead ends: 7996 [2024-11-27 20:07:38,335 INFO L226 Difference]: Without dead ends: 4994 [2024-11-27 20:07:38,349 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:07:38,350 INFO L435 NwaCegarLoop]: 596 mSDtfsCounter, 135 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 1183 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:07:38,350 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 1183 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:07:38,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4994 states. [2024-11-27 20:07:38,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4994 to 4984. [2024-11-27 20:07:38,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4984 states, 4096 states have (on average 1.6591796875) internal successors, (6796), 4105 states have internal predecessors, (6796), 844 states have call successors, (844), 44 states have call predecessors, (844), 43 states have return successors, (891), 837 states have call predecessors, (891), 843 states have call successors, (891) [2024-11-27 20:07:38,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4984 states to 4984 states and 8531 transitions. [2024-11-27 20:07:38,789 INFO L78 Accepts]: Start accepts. Automaton has 4984 states and 8531 transitions. Word has length 169 [2024-11-27 20:07:38,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:07:38,789 INFO L471 AbstractCegarLoop]: Abstraction has 4984 states and 8531 transitions. [2024-11-27 20:07:38,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-27 20:07:38,790 INFO L276 IsEmpty]: Start isEmpty. Operand 4984 states and 8531 transitions. [2024-11-27 20:07:38,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-27 20:07:38,829 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:07:38,830 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:07:38,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-27 20:07:38,830 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:07:38,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:38,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1838553806, now seen corresponding path program 1 times [2024-11-27 20:07:38,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:07:38,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140561785] [2024-11-27 20:07:38,831 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:38,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:38,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:38,941 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-27 20:07:38,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:07:38,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140561785] [2024-11-27 20:07:38,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140561785] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:07:38,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:07:38,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:07:38,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479153380] [2024-11-27 20:07:38,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:07:38,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:07:38,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:07:38,942 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:07:38,942 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:07:38,943 INFO L87 Difference]: Start difference. First operand 4984 states and 8531 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-27 20:07:39,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:07:39,392 INFO L93 Difference]: Finished difference Result 12403 states and 21358 transitions. [2024-11-27 20:07:39,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:07:39,393 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 170 [2024-11-27 20:07:39,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:07:39,462 INFO L225 Difference]: With dead ends: 12403 [2024-11-27 20:07:39,466 INFO L226 Difference]: Without dead ends: 7894 [2024-11-27 20:07:39,486 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:07:39,487 INFO L435 NwaCegarLoop]: 596 mSDtfsCounter, 133 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 1183 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:07:39,487 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 1183 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:07:39,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7894 states. [2024-11-27 20:07:40,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7894 to 7884. [2024-11-27 20:07:40,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7884 states, 6569 states have (on average 1.664484700867712) internal successors, (10934), 6578 states have internal predecessors, (10934), 1271 states have call successors, (1271), 44 states have call predecessors, (1271), 43 states have return successors, (1344), 1264 states have call predecessors, (1344), 1270 states have call successors, (1344) [2024-11-27 20:07:40,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7884 states to 7884 states and 13549 transitions. [2024-11-27 20:07:40,197 INFO L78 Accepts]: Start accepts. Automaton has 7884 states and 13549 transitions. Word has length 170 [2024-11-27 20:07:40,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:07:40,201 INFO L471 AbstractCegarLoop]: Abstraction has 7884 states and 13549 transitions. [2024-11-27 20:07:40,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-27 20:07:40,201 INFO L276 IsEmpty]: Start isEmpty. Operand 7884 states and 13549 transitions. [2024-11-27 20:07:40,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-27 20:07:40,259 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:07:40,259 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:07:40,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-27 20:07:40,259 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:07:40,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:40,260 INFO L85 PathProgramCache]: Analyzing trace with hash -868169898, now seen corresponding path program 1 times [2024-11-27 20:07:40,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:07:40,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588773954] [2024-11-27 20:07:40,261 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:40,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:40,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:40,381 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-27 20:07:40,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:07:40,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588773954] [2024-11-27 20:07:40,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588773954] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:07:40,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:07:40,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:07:40,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642899703] [2024-11-27 20:07:40,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:07:40,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:07:40,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:07:40,384 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:07:40,385 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:07:40,385 INFO L87 Difference]: Start difference. First operand 7884 states and 13549 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-27 20:07:41,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:07:41,039 INFO L93 Difference]: Finished difference Result 19690 states and 34086 transitions. [2024-11-27 20:07:41,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:07:41,040 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 171 [2024-11-27 20:07:41,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:07:41,140 INFO L225 Difference]: With dead ends: 19690 [2024-11-27 20:07:41,140 INFO L226 Difference]: Without dead ends: 13172 [2024-11-27 20:07:41,172 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:07:41,173 INFO L435 NwaCegarLoop]: 611 mSDtfsCounter, 131 mSDsluCounter, 586 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 1197 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:07:41,174 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 1197 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:07:41,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13172 states. [2024-11-27 20:07:42,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13172 to 13162. [2024-11-27 20:07:42,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13162 states, 10911 states have (on average 1.6662084135276327) internal successors, (18180), 10920 states have internal predecessors, (18180), 2207 states have call successors, (2207), 44 states have call predecessors, (2207), 43 states have return successors, (2324), 2200 states have call predecessors, (2324), 2206 states have call successors, (2324) [2024-11-27 20:07:42,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13162 states to 13162 states and 22711 transitions. [2024-11-27 20:07:42,208 INFO L78 Accepts]: Start accepts. Automaton has 13162 states and 22711 transitions. Word has length 171 [2024-11-27 20:07:42,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:07:42,209 INFO L471 AbstractCegarLoop]: Abstraction has 13162 states and 22711 transitions. [2024-11-27 20:07:42,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-27 20:07:42,209 INFO L276 IsEmpty]: Start isEmpty. Operand 13162 states and 22711 transitions. [2024-11-27 20:07:42,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-27 20:07:42,281 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:07:42,281 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:07:42,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-27 20:07:42,282 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:07:42,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:42,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1030793146, now seen corresponding path program 1 times [2024-11-27 20:07:42,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:07:42,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319746952] [2024-11-27 20:07:42,283 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:42,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:42,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:42,390 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-27 20:07:42,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:07:42,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319746952] [2024-11-27 20:07:42,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319746952] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:07:42,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:07:42,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:07:42,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469049802] [2024-11-27 20:07:42,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:07:42,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:07:42,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:07:42,393 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:07:42,393 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:07:42,394 INFO L87 Difference]: Start difference. First operand 13162 states and 22711 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-27 20:07:43,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:07:43,572 INFO L93 Difference]: Finished difference Result 34390 states and 59640 transitions. [2024-11-27 20:07:43,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:07:43,572 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 153 [2024-11-27 20:07:43,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:07:43,728 INFO L225 Difference]: With dead ends: 34390 [2024-11-27 20:07:43,728 INFO L226 Difference]: Without dead ends: 22812 [2024-11-27 20:07:43,790 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:07:43,791 INFO L435 NwaCegarLoop]: 596 mSDtfsCounter, 129 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 1186 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:07:43,791 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 1186 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:07:43,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22812 states. [2024-11-27 20:07:45,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22812 to 22802. [2024-11-27 20:07:45,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22802 states, 18993 states have (on average 1.6648238824830202) internal successors, (31620), 19002 states have internal predecessors, (31620), 3765 states have call successors, (3765), 44 states have call predecessors, (3765), 43 states have return successors, (3960), 3758 states have call predecessors, (3960), 3764 states have call successors, (3960) [2024-11-27 20:07:45,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22802 states to 22802 states and 39345 transitions. [2024-11-27 20:07:45,538 INFO L78 Accepts]: Start accepts. Automaton has 22802 states and 39345 transitions. Word has length 153 [2024-11-27 20:07:45,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:07:45,539 INFO L471 AbstractCegarLoop]: Abstraction has 22802 states and 39345 transitions. [2024-11-27 20:07:45,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-27 20:07:45,539 INFO L276 IsEmpty]: Start isEmpty. Operand 22802 states and 39345 transitions. [2024-11-27 20:07:45,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-27 20:07:45,644 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:07:45,645 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:07:45,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-27 20:07:45,646 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:07:45,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:45,646 INFO L85 PathProgramCache]: Analyzing trace with hash -721997624, now seen corresponding path program 1 times [2024-11-27 20:07:45,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:07:45,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535838598] [2024-11-27 20:07:45,647 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:45,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:45,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:45,762 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-27 20:07:45,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:07:45,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535838598] [2024-11-27 20:07:45,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535838598] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:07:45,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:07:45,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:07:45,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612161240] [2024-11-27 20:07:45,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:07:45,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:07:45,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:07:45,766 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:07:45,767 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:07:45,767 INFO L87 Difference]: Start difference. First operand 22802 states and 39345 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-27 20:07:47,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:07:47,290 INFO L93 Difference]: Finished difference Result 56419 states and 97086 transitions. [2024-11-27 20:07:47,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:07:47,290 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 173 [2024-11-27 20:07:47,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:07:47,496 INFO L225 Difference]: With dead ends: 56419 [2024-11-27 20:07:47,496 INFO L226 Difference]: Without dead ends: 36603 [2024-11-27 20:07:47,560 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:07:47,561 INFO L435 NwaCegarLoop]: 598 mSDtfsCounter, 127 mSDsluCounter, 562 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 1160 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:07:47,561 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 1160 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:07:47,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36603 states. [2024-11-27 20:07:49,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36603 to 36593. [2024-11-27 20:07:49,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36593 states, 30465 states have (on average 1.6394879369768587) internal successors, (49947), 30474 states have internal predecessors, (49947), 6084 states have call successors, (6084), 44 states have call predecessors, (6084), 43 states have return successors, (6423), 6077 states have call predecessors, (6423), 6083 states have call successors, (6423) [2024-11-27 20:07:50,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36593 states to 36593 states and 62454 transitions. [2024-11-27 20:07:50,329 INFO L78 Accepts]: Start accepts. Automaton has 36593 states and 62454 transitions. Word has length 173 [2024-11-27 20:07:50,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:07:50,330 INFO L471 AbstractCegarLoop]: Abstraction has 36593 states and 62454 transitions. [2024-11-27 20:07:50,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-27 20:07:50,330 INFO L276 IsEmpty]: Start isEmpty. Operand 36593 states and 62454 transitions. [2024-11-27 20:07:50,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-27 20:07:50,425 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:07:50,425 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:07:50,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-27 20:07:50,426 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:07:50,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:50,426 INFO L85 PathProgramCache]: Analyzing trace with hash -431684697, now seen corresponding path program 1 times [2024-11-27 20:07:50,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:07:50,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559468375] [2024-11-27 20:07:50,427 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:50,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:50,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:50,664 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-27 20:07:50,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:07:50,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559468375] [2024-11-27 20:07:50,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559468375] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:07:50,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:07:50,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:07:50,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139261465] [2024-11-27 20:07:50,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:07:50,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:07:50,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:07:50,667 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:07:50,667 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:07:50,667 INFO L87 Difference]: Start difference. First operand 36593 states and 62454 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-27 20:07:53,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:07:53,486 INFO L93 Difference]: Finished difference Result 99657 states and 170545 transitions. [2024-11-27 20:07:53,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:07:53,487 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 155 [2024-11-27 20:07:53,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:07:53,844 INFO L225 Difference]: With dead ends: 99657 [2024-11-27 20:07:53,844 INFO L226 Difference]: Without dead ends: 66914 [2024-11-27 20:07:53,959 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:07:53,959 INFO L435 NwaCegarLoop]: 596 mSDtfsCounter, 125 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 1186 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:07:53,960 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 1186 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:07:54,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66914 states. [2024-11-27 20:07:57,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66914 to 66904. [2024-11-27 20:07:57,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66904 states, 55990 states have (on average 1.6353098767637078) internal successors, (91561), 55999 states have internal predecessors, (91561), 10870 states have call successors, (10870), 44 states have call predecessors, (10870), 43 states have return successors, (11483), 10863 states have call predecessors, (11483), 10869 states have call successors, (11483) [2024-11-27 20:07:58,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66904 states to 66904 states and 113914 transitions. [2024-11-27 20:07:58,059 INFO L78 Accepts]: Start accepts. Automaton has 66904 states and 113914 transitions. Word has length 155 [2024-11-27 20:07:58,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:07:58,059 INFO L471 AbstractCegarLoop]: Abstraction has 66904 states and 113914 transitions. [2024-11-27 20:07:58,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-27 20:07:58,060 INFO L276 IsEmpty]: Start isEmpty. Operand 66904 states and 113914 transitions. [2024-11-27 20:07:58,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-27 20:07:58,191 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:07:58,191 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:07:58,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-27 20:07:58,192 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:07:58,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:58,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1831386482, now seen corresponding path program 1 times [2024-11-27 20:07:58,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:07:58,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971639089] [2024-11-27 20:07:58,194 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:58,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:58,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:58,303 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-27 20:07:58,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:07:58,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971639089] [2024-11-27 20:07:58,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971639089] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:07:58,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:07:58,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:07:58,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952067993] [2024-11-27 20:07:58,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:07:58,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:07:58,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:07:58,306 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:07:58,306 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:07:58,306 INFO L87 Difference]: Start difference. First operand 66904 states and 113914 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-27 20:08:02,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:08:02,399 INFO L93 Difference]: Finished difference Result 186845 states and 318798 transitions. [2024-11-27 20:08:02,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:08:02,400 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 175 [2024-11-27 20:08:02,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:08:03,196 INFO L225 Difference]: With dead ends: 186845 [2024-11-27 20:08:03,196 INFO L226 Difference]: Without dead ends: 124978 [2024-11-27 20:08:03,420 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:08:03,424 INFO L435 NwaCegarLoop]: 597 mSDtfsCounter, 123 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 1187 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:08:03,424 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 1187 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:08:03,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124978 states. [2024-11-27 20:08:08,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124978 to 124968. [2024-11-27 20:08:08,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124968 states, 105157 states have (on average 1.6302481052141085) internal successors, (171432), 105166 states have internal predecessors, (171432), 19767 states have call successors, (19767), 44 states have call predecessors, (19767), 43 states have return successors, (20912), 19760 states have call predecessors, (20912), 19766 states have call successors, (20912) [2024-11-27 20:08:09,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124968 states to 124968 states and 212111 transitions. [2024-11-27 20:08:09,481 INFO L78 Accepts]: Start accepts. Automaton has 124968 states and 212111 transitions. Word has length 175 [2024-11-27 20:08:09,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:08:09,481 INFO L471 AbstractCegarLoop]: Abstraction has 124968 states and 212111 transitions. [2024-11-27 20:08:09,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-27 20:08:09,482 INFO L276 IsEmpty]: Start isEmpty. Operand 124968 states and 212111 transitions. [2024-11-27 20:08:09,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-27 20:08:09,664 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:08:09,664 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:08:09,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-27 20:08:09,664 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:08:09,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:08:09,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1717186201, now seen corresponding path program 1 times [2024-11-27 20:08:09,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:08:09,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406581558] [2024-11-27 20:08:09,666 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:08:09,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:08:09,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:08:09,766 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-27 20:08:09,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:08:09,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406581558] [2024-11-27 20:08:09,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406581558] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:08:09,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:08:09,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:08:09,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323002887] [2024-11-27 20:08:09,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:08:09,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:08:09,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:08:09,768 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:08:09,768 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:08:09,768 INFO L87 Difference]: Start difference. First operand 124968 states and 212111 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-27 20:08:16,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:08:16,267 INFO L93 Difference]: Finished difference Result 236098 states and 401324 transitions. [2024-11-27 20:08:16,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:08:16,267 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 157 [2024-11-27 20:08:16,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:08:17,429 INFO L225 Difference]: With dead ends: 236098 [2024-11-27 20:08:17,429 INFO L226 Difference]: Without dead ends: 235812 [2024-11-27 20:08:17,524 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:08:17,525 INFO L435 NwaCegarLoop]: 598 mSDtfsCounter, 118 mSDsluCounter, 594 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 1192 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:08:17,526 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 1192 Invalid, 4 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:08:17,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235812 states.