./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec27_product32.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09164f2-275e-4664-9fbd-ba263a8b94c1/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09164f2-275e-4664-9fbd-ba263a8b94c1/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09164f2-275e-4664-9fbd-ba263a8b94c1/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09164f2-275e-4664-9fbd-ba263a8b94c1/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec27_product32.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09164f2-275e-4664-9fbd-ba263a8b94c1/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09164f2-275e-4664-9fbd-ba263a8b94c1/bin/uautomizer-verify-VRDe98Ueme --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 6b54f48e5606af61de5b12570bc2e15a173e4036917e2e3bdec28cef1386724b --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:43:43,705 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:43:43,824 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09164f2-275e-4664-9fbd-ba263a8b94c1/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-26 11:43:43,829 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:43:43,829 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:43:43,859 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:43:43,861 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:43:43,861 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:43:43,862 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:43:43,867 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:43:43,868 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:43:43,868 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:43:43,869 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:43:43,871 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:43:43,871 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:43:43,872 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:43:43,872 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:43:43,873 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:43:43,873 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:43:43,874 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:43:43,874 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:43:43,875 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:43:43,875 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:43:43,876 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:43:43,876 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:43:43,877 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:43:43,877 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:43:43,878 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:43:43,879 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:43:43,879 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:43:43,880 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:43:43,881 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:43:43,881 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:43:43,881 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:43:43,882 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:43:43,882 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:43:43,882 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:43:43,883 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:43:43,883 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:43:43,883 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:43:43,884 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:43:43,884 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:43:43,884 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09164f2-275e-4664-9fbd-ba263a8b94c1/bin/uautomizer-verify-VRDe98Ueme/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09164f2-275e-4664-9fbd-ba263a8b94c1/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6b54f48e5606af61de5b12570bc2e15a173e4036917e2e3bdec28cef1386724b [2023-11-26 11:43:44,204 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:43:44,240 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:43:44,243 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:43:44,246 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:43:44,246 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:43:44,248 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09164f2-275e-4664-9fbd-ba263a8b94c1/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/product-lines/email_spec27_product32.cil.c [2023-11-26 11:43:47,381 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:43:47,774 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:43:47,774 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09164f2-275e-4664-9fbd-ba263a8b94c1/sv-benchmarks/c/product-lines/email_spec27_product32.cil.c [2023-11-26 11:43:47,815 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09164f2-275e-4664-9fbd-ba263a8b94c1/bin/uautomizer-verify-VRDe98Ueme/data/90953999e/fb552f4860c8478fac4a5c7df02535c2/FLAG786cabb7e [2023-11-26 11:43:47,833 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09164f2-275e-4664-9fbd-ba263a8b94c1/bin/uautomizer-verify-VRDe98Ueme/data/90953999e/fb552f4860c8478fac4a5c7df02535c2 [2023-11-26 11:43:47,841 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:43:47,842 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:43:47,846 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:43:47,846 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:43:47,852 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:43:47,853 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:43:47" (1/1) ... [2023-11-26 11:43:47,859 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@daa3b69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:47, skipping insertion in model container [2023-11-26 11:43:47,859 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:43:47" (1/1) ... [2023-11-26 11:43:47,947 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:43:48,285 WARN L240 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_c09164f2-275e-4664-9fbd-ba263a8b94c1/sv-benchmarks/c/product-lines/email_spec27_product32.cil.c[27975,27988] [2023-11-26 11:43:48,561 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:43:48,577 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:43:48,590 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [48] [2023-11-26 11:43:48,592 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"VerifyForward_spec.i","") [1128] [2023-11-26 11:43:48,592 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1174] [2023-11-26 11:43:48,593 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1183] [2023-11-26 11:43:48,593 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1201] [2023-11-26 11:43:48,593 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1567] [2023-11-26 11:43:48,594 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1875] [2023-11-26 11:43:48,594 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2287] [2023-11-26 11:43:48,595 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2685] [2023-11-26 11:43:48,595 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2720] [2023-11-26 11:43:48,596 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2856] [2023-11-26 11:43:48,675 WARN L240 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_c09164f2-275e-4664-9fbd-ba263a8b94c1/sv-benchmarks/c/product-lines/email_spec27_product32.cil.c[27975,27988] [2023-11-26 11:43:48,782 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:43:48,833 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:43:48,841 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:43:48,841 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:48 WrapperNode [2023-11-26 11:43:48,841 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:43:48,842 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:43:48,843 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:43:48,843 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:43:48,850 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:48" (1/1) ... [2023-11-26 11:43:48,885 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:48" (1/1) ... [2023-11-26 11:43:48,972 INFO L138 Inliner]: procedures = 134, calls = 238, calls flagged for inlining = 60, calls inlined = 53, statements flattened = 1020 [2023-11-26 11:43:48,972 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:43:48,973 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:43:48,973 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:43:48,973 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:43:48,987 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:48" (1/1) ... [2023-11-26 11:43:48,987 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:48" (1/1) ... [2023-11-26 11:43:49,010 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:48" (1/1) ... [2023-11-26 11:43:49,066 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]. [2023-11-26 11:43:49,083 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:48" (1/1) ... [2023-11-26 11:43:49,083 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:48" (1/1) ... [2023-11-26 11:43:49,126 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:48" (1/1) ... [2023-11-26 11:43:49,167 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:48" (1/1) ... [2023-11-26 11:43:49,173 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:48" (1/1) ... [2023-11-26 11:43:49,188 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:48" (1/1) ... [2023-11-26 11:43:49,204 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:43:49,209 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:43:49,210 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:43:49,210 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:43:49,211 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:48" (1/1) ... [2023-11-26 11:43:49,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:43:49,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09164f2-275e-4664-9fbd-ba263a8b94c1/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:43:49,257 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09164f2-275e-4664-9fbd-ba263a8b94c1/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:43:49,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09164f2-275e-4664-9fbd-ba263a8b94c1/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:43:49,296 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-11-26 11:43:49,297 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-11-26 11:43:49,297 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-11-26 11:43:49,297 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-11-26 11:43:49,297 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-11-26 11:43:49,298 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-11-26 11:43:49,298 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-11-26 11:43:49,298 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-11-26 11:43:49,298 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-11-26 11:43:49,298 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-11-26 11:43:49,298 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-11-26 11:43:49,299 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-11-26 11:43:49,299 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2023-11-26 11:43:49,299 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2023-11-26 11:43:49,299 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-11-26 11:43:49,299 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-11-26 11:43:49,299 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-11-26 11:43:49,300 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-11-26 11:43:49,300 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-11-26 11:43:49,300 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-11-26 11:43:49,300 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-11-26 11:43:49,300 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-11-26 11:43:49,300 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-11-26 11:43:49,301 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-11-26 11:43:49,301 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-11-26 11:43:49,301 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-11-26 11:43:49,301 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-11-26 11:43:49,301 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-11-26 11:43:49,301 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-11-26 11:43:49,302 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-11-26 11:43:49,302 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-11-26 11:43:49,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:43:49,302 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-11-26 11:43:49,302 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-11-26 11:43:49,302 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-11-26 11:43:49,303 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-11-26 11:43:49,303 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-11-26 11:43:49,303 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-11-26 11:43:49,303 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-11-26 11:43:49,304 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-11-26 11:43:49,304 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-11-26 11:43:49,304 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-11-26 11:43:49,304 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-11-26 11:43:49,304 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-11-26 11:43:49,305 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2023-11-26 11:43:49,305 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2023-11-26 11:43:49,305 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-11-26 11:43:49,305 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-11-26 11:43:49,306 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-11-26 11:43:49,306 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-11-26 11:43:49,306 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-11-26 11:43:49,306 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-11-26 11:43:49,306 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-11-26 11:43:49,307 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-11-26 11:43:49,307 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-11-26 11:43:49,307 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-11-26 11:43:49,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 11:43:49,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-26 11:43:49,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-26 11:43:49,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-26 11:43:49,308 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-11-26 11:43:49,308 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-11-26 11:43:49,309 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-11-26 11:43:49,309 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-11-26 11:43:49,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:43:49,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:43:49,573 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:43:49,576 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:43:50,655 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:43:50,761 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:43:50,761 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 11:43:50,762 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:43:50 BoogieIcfgContainer [2023-11-26 11:43:50,762 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:43:50,766 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:43:50,767 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:43:50,770 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:43:50,770 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:43:47" (1/3) ... [2023-11-26 11:43:50,771 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c5ed241 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:43:50, skipping insertion in model container [2023-11-26 11:43:50,772 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:48" (2/3) ... [2023-11-26 11:43:50,774 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c5ed241 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:43:50, skipping insertion in model container [2023-11-26 11:43:50,774 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:43:50" (3/3) ... [2023-11-26 11:43:50,778 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec27_product32.cil.c [2023-11-26 11:43:50,799 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:43:50,799 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 11:43:50,869 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:43:50,877 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@3e8b9ddc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:43:50,878 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 11:43:50,885 INFO L276 IsEmpty]: Start isEmpty. Operand has 404 states, 307 states have (on average 1.5993485342019544) internal successors, (491), 312 states have internal predecessors, (491), 66 states have call successors, (66), 29 states have call predecessors, (66), 29 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2023-11-26 11:43:50,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-11-26 11:43:50,915 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:43:50,916 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 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] [2023-11-26 11:43:50,916 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:43:50,922 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:43:50,923 INFO L85 PathProgramCache]: Analyzing trace with hash -275540643, now seen corresponding path program 1 times [2023-11-26 11:43:50,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:43:50,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984752365] [2023-11-26 11:43:50,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:43:50,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:43:51,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:51,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:43:51,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:51,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 11:43:51,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:51,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-26 11:43:51,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:51,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-26 11:43:51,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:51,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-26 11:43:51,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:51,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-26 11:43:51,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:51,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-26 11:43:51,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:51,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-26 11:43:51,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:51,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-26 11:43:51,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:51,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-26 11:43:51,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:51,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-26 11:43:51,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:52,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-26 11:43:52,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:52,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-26 11:43:52,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:52,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-26 11:43:52,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:52,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-26 11:43:52,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:52,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-26 11:43:52,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:52,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:43:52,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:52,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-26 11:43:52,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:52,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-11-26 11:43:52,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:52,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-11-26 11:43:52,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:52,069 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-11-26 11:43:52,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:43:52,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984752365] [2023-11-26 11:43:52,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984752365] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:43:52,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1925677793] [2023-11-26 11:43:52,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:43:52,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:43:52,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09164f2-275e-4664-9fbd-ba263a8b94c1/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:43:52,082 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09164f2-275e-4664-9fbd-ba263a8b94c1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:43:52,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09164f2-275e-4664-9fbd-ba263a8b94c1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 11:43:52,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:52,588 INFO L262 TraceCheckSpWp]: Trace formula consists of 1296 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-26 11:43:52,608 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:43:52,666 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-11-26 11:43:52,673 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:43:52,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1925677793] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:43:52,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:43:52,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2023-11-26 11:43:52,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670647189] [2023-11-26 11:43:52,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:43:52,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 11:43:52,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:43:52,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 11:43:52,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-26 11:43:52,743 INFO L87 Difference]: Start difference. First operand has 404 states, 307 states have (on average 1.5993485342019544) internal successors, (491), 312 states have internal predecessors, (491), 66 states have call successors, (66), 29 states have call predecessors, (66), 29 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) Second operand has 2 states, 2 states have (on average 38.5) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-26 11:43:52,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:43:52,861 INFO L93 Difference]: Finished difference Result 624 states and 945 transitions. [2023-11-26 11:43:52,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 11:43:52,866 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 38.5) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 145 [2023-11-26 11:43:52,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:43:52,894 INFO L225 Difference]: With dead ends: 624 [2023-11-26 11:43:52,894 INFO L226 Difference]: Without dead ends: 401 [2023-11-26 11:43:52,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-26 11:43:52,912 INFO L413 NwaCegarLoop]: 604 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:43:52,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 604 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:43:52,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2023-11-26 11:43:53,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 401. [2023-11-26 11:43:53,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 305 states have (on average 1.5868852459016394) internal successors, (484), 309 states have internal predecessors, (484), 66 states have call successors, (66), 29 states have call predecessors, (66), 29 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2023-11-26 11:43:53,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 615 transitions. [2023-11-26 11:43:53,029 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 615 transitions. Word has length 145 [2023-11-26 11:43:53,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:43:53,031 INFO L495 AbstractCegarLoop]: Abstraction has 401 states and 615 transitions. [2023-11-26 11:43:53,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 38.5) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-26 11:43:53,032 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 615 transitions. [2023-11-26 11:43:53,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-11-26 11:43:53,040 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:43:53,040 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 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, 1, 1, 1, 1, 1, 1] [2023-11-26 11:43:53,059 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09164f2-275e-4664-9fbd-ba263a8b94c1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-26 11:43:53,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09164f2-275e-4664-9fbd-ba263a8b94c1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:43:53,252 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:43:53,252 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:43:53,253 INFO L85 PathProgramCache]: Analyzing trace with hash -800826614, now seen corresponding path program 1 times [2023-11-26 11:43:53,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:43:53,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038670474] [2023-11-26 11:43:53,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:43:53,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:43:53,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:53,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:43:53,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:53,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 11:43:53,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:53,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-26 11:43:53,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:53,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-26 11:43:53,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:53,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-26 11:43:53,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:53,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-26 11:43:53,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:53,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-26 11:43:53,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:53,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-26 11:43:53,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:53,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-26 11:43:53,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:53,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-26 11:43:53,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:53,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-26 11:43:53,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:53,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-26 11:43:53,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:53,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-26 11:43:53,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:53,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-26 11:43:53,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:53,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-26 11:43:53,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:53,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-26 11:43:53,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:53,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-11-26 11:43:53,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:53,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-11-26 11:43:53,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:53,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-11-26 11:43:53,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:53,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:43:53,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:53,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-11-26 11:43:53,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:53,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-26 11:43:53,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:53,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-11-26 11:43:53,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:53,809 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2023-11-26 11:43:53,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:43:53,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038670474] [2023-11-26 11:43:53,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038670474] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:43:53,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1113728487] [2023-11-26 11:43:53,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:43:53,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:43:53,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09164f2-275e-4664-9fbd-ba263a8b94c1/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:43:53,816 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09164f2-275e-4664-9fbd-ba263a8b94c1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:43:53,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09164f2-275e-4664-9fbd-ba263a8b94c1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-26 11:43:54,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:54,233 INFO L262 TraceCheckSpWp]: Trace formula consists of 1370 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 11:43:54,242 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:43:54,268 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2023-11-26 11:43:54,268 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:43:54,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1113728487] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:43:54,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:43:54,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-11-26 11:43:54,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117201950] [2023-11-26 11:43:54,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:43:54,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:43:54,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:43:54,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:43:54,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-26 11:43:54,277 INFO L87 Difference]: Start difference. First operand 401 states and 615 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-26 11:43:54,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:43:54,360 INFO L93 Difference]: Finished difference Result 620 states and 929 transitions. [2023-11-26 11:43:54,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:43:54,361 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 164 [2023-11-26 11:43:54,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:43:54,365 INFO L225 Difference]: With dead ends: 620 [2023-11-26 11:43:54,365 INFO L226 Difference]: Without dead ends: 403 [2023-11-26 11:43:54,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-26 11:43:54,369 INFO L413 NwaCegarLoop]: 601 mSDtfsCounter, 0 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1201 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:43:54,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1201 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:43:54,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2023-11-26 11:43:54,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 403. [2023-11-26 11:43:54,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 307 states have (on average 1.5830618892508144) internal successors, (486), 311 states have internal predecessors, (486), 66 states have call successors, (66), 29 states have call predecessors, (66), 29 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2023-11-26 11:43:54,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 617 transitions. [2023-11-26 11:43:54,412 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 617 transitions. Word has length 164 [2023-11-26 11:43:54,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:43:54,414 INFO L495 AbstractCegarLoop]: Abstraction has 403 states and 617 transitions. [2023-11-26 11:43:54,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-26 11:43:54,416 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 617 transitions. [2023-11-26 11:43:54,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-11-26 11:43:54,422 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:43:54,423 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 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, 1, 1] [2023-11-26 11:43:54,436 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09164f2-275e-4664-9fbd-ba263a8b94c1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-26 11:43:54,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09164f2-275e-4664-9fbd-ba263a8b94c1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-11-26 11:43:54,631 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:43:54,632 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:43:54,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1349963772, now seen corresponding path program 1 times [2023-11-26 11:43:54,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:43:54,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394857900] [2023-11-26 11:43:54,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:43:54,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:43:54,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:54,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:43:54,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:54,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 11:43:54,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:54,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-26 11:43:54,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:54,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-26 11:43:54,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:54,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-26 11:43:54,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:54,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-26 11:43:54,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:55,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-26 11:43:55,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:55,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-26 11:43:55,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:55,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-26 11:43:55,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:55,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-26 11:43:55,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:55,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-26 11:43:55,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:55,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-26 11:43:55,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:55,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-26 11:43:55,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:55,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-26 11:43:55,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:55,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-26 11:43:55,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:55,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-26 11:43:55,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:55,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:43:55,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:55,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-26 11:43:55,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:55,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-11-26 11:43:55,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:55,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-11-26 11:43:55,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:55,081 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-11-26 11:43:55,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:43:55,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394857900] [2023-11-26 11:43:55,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394857900] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:43:55,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [69224343] [2023-11-26 11:43:55,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:43:55,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:43:55,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09164f2-275e-4664-9fbd-ba263a8b94c1/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:43:55,088 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09164f2-275e-4664-9fbd-ba263a8b94c1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:43:55,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09164f2-275e-4664-9fbd-ba263a8b94c1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-26 11:43:55,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:55,503 INFO L262 TraceCheckSpWp]: Trace formula consists of 1321 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 11:43:55,511 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:43:55,545 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-11-26 11:43:55,547 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:43:55,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [69224343] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:43:55,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:43:55,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-11-26 11:43:55,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248938411] [2023-11-26 11:43:55,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:43:55,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:43:55,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:43:55,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:43:55,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-26 11:43:55,555 INFO L87 Difference]: Start difference. First operand 403 states and 617 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-26 11:43:55,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:43:55,670 INFO L93 Difference]: Finished difference Result 854 states and 1326 transitions. [2023-11-26 11:43:55,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:43:55,671 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 153 [2023-11-26 11:43:55,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:43:55,676 INFO L225 Difference]: With dead ends: 854 [2023-11-26 11:43:55,676 INFO L226 Difference]: Without dead ends: 473 [2023-11-26 11:43:55,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-26 11:43:55,682 INFO L413 NwaCegarLoop]: 610 mSDtfsCounter, 129 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 1165 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:43:55,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 1165 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:43:55,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2023-11-26 11:43:55,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 468. [2023-11-26 11:43:55,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 358 states have (on average 1.600558659217877) internal successors, (573), 362 states have internal predecessors, (573), 80 states have call successors, (80), 29 states have call predecessors, (80), 29 states have return successors, (79), 78 states have call predecessors, (79), 79 states have call successors, (79) [2023-11-26 11:43:55,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 732 transitions. [2023-11-26 11:43:55,732 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 732 transitions. Word has length 153 [2023-11-26 11:43:55,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:43:55,733 INFO L495 AbstractCegarLoop]: Abstraction has 468 states and 732 transitions. [2023-11-26 11:43:55,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-26 11:43:55,734 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 732 transitions. [2023-11-26 11:43:55,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-11-26 11:43:55,741 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:43:55,742 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:43:55,756 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09164f2-275e-4664-9fbd-ba263a8b94c1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-26 11:43:55,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09164f2-275e-4664-9fbd-ba263a8b94c1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-11-26 11:43:55,951 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:43:55,951 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:43:55,951 INFO L85 PathProgramCache]: Analyzing trace with hash -298196483, now seen corresponding path program 1 times [2023-11-26 11:43:55,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:43:55,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140391722] [2023-11-26 11:43:55,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:43:55,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:43:55,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:56,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:43:56,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:56,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 11:43:56,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:56,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-26 11:43:56,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:56,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-26 11:43:56,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:56,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-26 11:43:56,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:56,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-26 11:43:56,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:56,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-26 11:43:56,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:56,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-26 11:43:56,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:56,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-26 11:43:56,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:56,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-26 11:43:56,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:56,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-26 11:43:56,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:56,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-26 11:43:56,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:56,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-26 11:43:56,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:56,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-26 11:43:56,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:56,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-26 11:43:56,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:56,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-26 11:43:56,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:56,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-11-26 11:43:56,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:56,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-11-26 11:43:56,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:56,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-11-26 11:43:56,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:56,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:43:56,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:56,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-11-26 11:43:56,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:56,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-11-26 11:43:56,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:56,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-11-26 11:43:56,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:56,356 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2023-11-26 11:43:56,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:43:56,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140391722] [2023-11-26 11:43:56,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140391722] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:43:56,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1206235973] [2023-11-26 11:43:56,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:43:56,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:43:56,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09164f2-275e-4664-9fbd-ba263a8b94c1/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:43:56,359 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09164f2-275e-4664-9fbd-ba263a8b94c1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:43:56,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09164f2-275e-4664-9fbd-ba263a8b94c1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-26 11:43:56,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:56,842 INFO L262 TraceCheckSpWp]: Trace formula consists of 1399 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-26 11:43:56,849 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:43:56,932 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-26 11:43:56,932 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:43:56,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1206235973] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:43:56,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:43:56,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2023-11-26 11:43:56,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092769980] [2023-11-26 11:43:56,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:43:56,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:43:56,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:43:56,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:43:56,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-11-26 11:43:56,936 INFO L87 Difference]: Start difference. First operand 468 states and 732 transitions. Second operand has 5 states, 4 states have (on average 25.0) internal successors, (100), 5 states have internal predecessors, (100), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2023-11-26 11:43:57,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:43:57,061 INFO L93 Difference]: Finished difference Result 931 states and 1458 transitions. [2023-11-26 11:43:57,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 11:43:57,062 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 25.0) internal successors, (100), 5 states have internal predecessors, (100), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) Word has length 172 [2023-11-26 11:43:57,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:43:57,066 INFO L225 Difference]: With dead ends: 931 [2023-11-26 11:43:57,066 INFO L226 Difference]: Without dead ends: 470 [2023-11-26 11:43:57,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-11-26 11:43:57,069 INFO L413 NwaCegarLoop]: 592 mSDtfsCounter, 8 mSDsluCounter, 1765 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2357 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:43:57,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2357 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:43:57,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2023-11-26 11:43:57,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 470. [2023-11-26 11:43:57,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 359 states have (on average 1.5988857938718664) internal successors, (574), 364 states have internal predecessors, (574), 80 states have call successors, (80), 29 states have call predecessors, (80), 30 states have return successors, (81), 78 states have call predecessors, (81), 79 states have call successors, (81) [2023-11-26 11:43:57,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 735 transitions. [2023-11-26 11:43:57,097 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 735 transitions. Word has length 172 [2023-11-26 11:43:57,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:43:57,097 INFO L495 AbstractCegarLoop]: Abstraction has 470 states and 735 transitions. [2023-11-26 11:43:57,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 25.0) internal successors, (100), 5 states have internal predecessors, (100), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2023-11-26 11:43:57,098 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 735 transitions. [2023-11-26 11:43:57,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-11-26 11:43:57,102 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:43:57,102 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:43:57,116 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09164f2-275e-4664-9fbd-ba263a8b94c1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-26 11:43:57,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09164f2-275e-4664-9fbd-ba263a8b94c1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:43:57,316 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:43:57,316 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:43:57,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1497538407, now seen corresponding path program 1 times [2023-11-26 11:43:57,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:43:57,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952470361] [2023-11-26 11:43:57,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:43:57,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:43:57,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:57,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:43:57,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:57,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 11:43:57,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:57,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-26 11:43:57,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:57,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-26 11:43:57,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:57,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-26 11:43:57,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:57,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 11:43:57,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:57,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-26 11:43:57,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:57,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-26 11:43:57,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:57,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-26 11:43:57,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:57,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-26 11:43:57,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:57,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-26 11:43:57,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:57,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-26 11:43:57,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:57,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-26 11:43:57,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:57,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-26 11:43:57,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:57,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-26 11:43:57,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:57,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-26 11:43:57,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:57,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-26 11:43:57,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:57,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-26 11:43:57,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:57,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-26 11:43:57,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:57,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:43:57,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:57,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-11-26 11:43:57,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:57,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-11-26 11:43:57,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:57,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-11-26 11:43:57,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:57,723 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-11-26 11:43:57,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:43:57,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952470361] [2023-11-26 11:43:57,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952470361] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:43:57,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [300341988] [2023-11-26 11:43:57,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:43:57,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:43:57,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09164f2-275e-4664-9fbd-ba263a8b94c1/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:43:57,726 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09164f2-275e-4664-9fbd-ba263a8b94c1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:43:57,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09164f2-275e-4664-9fbd-ba263a8b94c1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-26 11:43:58,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:58,152 INFO L262 TraceCheckSpWp]: Trace formula consists of 1400 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 11:43:58,160 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:43:58,233 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-26 11:43:58,233 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:43:58,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [300341988] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:43:58,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:43:58,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2023-11-26 11:43:58,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080198487] [2023-11-26 11:43:58,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:43:58,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:43:58,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:43:58,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:43:58,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2023-11-26 11:43:58,237 INFO L87 Difference]: Start difference. First operand 470 states and 735 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2023-11-26 11:43:58,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:43:58,390 INFO L93 Difference]: Finished difference Result 933 states and 1463 transitions. [2023-11-26 11:43:58,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 11:43:58,391 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 173 [2023-11-26 11:43:58,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:43:58,395 INFO L225 Difference]: With dead ends: 933 [2023-11-26 11:43:58,395 INFO L226 Difference]: Without dead ends: 472 [2023-11-26 11:43:58,397 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2023-11-26 11:43:58,398 INFO L413 NwaCegarLoop]: 590 mSDtfsCounter, 8 mSDsluCounter, 1753 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2343 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:43:58,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2343 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:43:58,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2023-11-26 11:43:58,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 472. [2023-11-26 11:43:58,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 360 states have (on average 1.5972222222222223) internal successors, (575), 366 states have internal predecessors, (575), 80 states have call successors, (80), 29 states have call predecessors, (80), 31 states have return successors, (86), 78 states have call predecessors, (86), 79 states have call successors, (86) [2023-11-26 11:43:58,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 741 transitions. [2023-11-26 11:43:58,425 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 741 transitions. Word has length 173 [2023-11-26 11:43:58,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:43:58,426 INFO L495 AbstractCegarLoop]: Abstraction has 472 states and 741 transitions. [2023-11-26 11:43:58,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2023-11-26 11:43:58,426 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 741 transitions. [2023-11-26 11:43:58,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-11-26 11:43:58,431 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:43:58,431 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:43:58,440 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09164f2-275e-4664-9fbd-ba263a8b94c1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-26 11:43:58,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09164f2-275e-4664-9fbd-ba263a8b94c1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:43:58,640 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:43:58,640 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:43:58,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1503828450, now seen corresponding path program 1 times [2023-11-26 11:43:58,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:43:58,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987808109] [2023-11-26 11:43:58,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:43:58,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:43:58,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:58,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:43:58,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:58,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 11:43:58,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:58,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-26 11:43:58,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:58,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-26 11:43:58,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:58,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-26 11:43:58,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:58,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-26 11:43:58,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:58,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-26 11:43:58,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:58,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-26 11:43:58,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:58,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-26 11:43:58,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:58,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-26 11:43:58,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:58,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-26 11:43:58,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:58,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-26 11:43:58,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:58,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-26 11:43:58,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:58,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-26 11:43:58,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:58,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-26 11:43:58,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:58,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-11-26 11:43:58,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:58,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-11-26 11:43:58,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:58,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-11-26 11:43:58,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:58,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-11-26 11:43:58,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:58,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:43:58,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:58,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-11-26 11:43:58,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:58,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-26 11:43:59,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:59,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-11-26 11:43:59,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:59,005 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2023-11-26 11:43:59,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:43:59,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987808109] [2023-11-26 11:43:59,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987808109] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:43:59,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:43:59,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-26 11:43:59,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011755553] [2023-11-26 11:43:59,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:43:59,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-26 11:43:59,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:43:59,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-26 11:43:59,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-26 11:43:59,009 INFO L87 Difference]: Start difference. First operand 472 states and 741 transitions. Second operand has 9 states, 8 states have (on average 12.25) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (26), 6 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2023-11-26 11:44:01,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:44:01,943 INFO L93 Difference]: Finished difference Result 1032 states and 1653 transitions. [2023-11-26 11:44:01,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-26 11:44:01,944 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.25) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (26), 6 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) Word has length 174 [2023-11-26 11:44:01,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:44:01,949 INFO L225 Difference]: With dead ends: 1032 [2023-11-26 11:44:01,949 INFO L226 Difference]: Without dead ends: 579 [2023-11-26 11:44:01,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-11-26 11:44:01,952 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 1427 mSDsluCounter, 1005 mSDsCounter, 0 mSdLazyCounter, 2587 mSolverCounterSat, 509 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1428 SdHoareTripleChecker+Valid, 1192 SdHoareTripleChecker+Invalid, 3096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 509 IncrementalHoareTripleChecker+Valid, 2587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-26 11:44:01,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1428 Valid, 1192 Invalid, 3096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [509 Valid, 2587 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-26 11:44:01,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2023-11-26 11:44:02,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 472. [2023-11-26 11:44:02,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 360 states have (on average 1.5972222222222223) internal successors, (575), 366 states have internal predecessors, (575), 80 states have call successors, (80), 29 states have call predecessors, (80), 31 states have return successors, (85), 78 states have call predecessors, (85), 79 states have call successors, (85) [2023-11-26 11:44:02,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 740 transitions. [2023-11-26 11:44:02,013 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 740 transitions. Word has length 174 [2023-11-26 11:44:02,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:44:02,014 INFO L495 AbstractCegarLoop]: Abstraction has 472 states and 740 transitions. [2023-11-26 11:44:02,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.25) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (26), 6 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2023-11-26 11:44:02,014 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 740 transitions. [2023-11-26 11:44:02,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2023-11-26 11:44:02,018 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:44:02,019 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:02,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-26 11:44:02,019 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:44:02,020 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:02,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1143104480, now seen corresponding path program 2 times [2023-11-26 11:44:02,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:02,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378053173] [2023-11-26 11:44:02,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:02,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:02,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:02,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:44:02,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:02,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 11:44:02,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:02,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-26 11:44:02,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:02,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-26 11:44:02,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:02,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-26 11:44:02,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:02,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-26 11:44:02,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:02,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-26 11:44:02,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:02,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-26 11:44:02,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:02,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-26 11:44:02,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:02,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-26 11:44:02,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:02,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-26 11:44:02,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:02,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-26 11:44:02,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:02,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-26 11:44:02,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:02,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-26 11:44:02,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:02,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-26 11:44:02,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:02,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-26 11:44:02,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:02,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-26 11:44:02,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:02,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-26 11:44:02,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:02,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-11-26 11:44:02,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:02,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:44:02,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:02,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-11-26 11:44:02,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:02,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-11-26 11:44:02,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:02,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-11-26 11:44:02,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:02,415 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2023-11-26 11:44:02,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:02,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378053173] [2023-11-26 11:44:02,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378053173] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:02,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:02,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-26 11:44:02,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758042846] [2023-11-26 11:44:02,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:02,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-26 11:44:02,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:02,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-26 11:44:02,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-26 11:44:02,419 INFO L87 Difference]: Start difference. First operand 472 states and 740 transitions. Second operand has 9 states, 8 states have (on average 12.375) internal successors, (99), 5 states have internal predecessors, (99), 3 states have call successors, (26), 6 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2023-11-26 11:44:05,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:44:05,291 INFO L93 Difference]: Finished difference Result 1034 states and 1656 transitions. [2023-11-26 11:44:05,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-26 11:44:05,292 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.375) internal successors, (99), 5 states have internal predecessors, (99), 3 states have call successors, (26), 6 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) Word has length 175 [2023-11-26 11:44:05,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:44:05,297 INFO L225 Difference]: With dead ends: 1034 [2023-11-26 11:44:05,297 INFO L226 Difference]: Without dead ends: 581 [2023-11-26 11:44:05,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-11-26 11:44:05,303 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 1394 mSDsluCounter, 1005 mSDsCounter, 0 mSdLazyCounter, 2684 mSolverCounterSat, 484 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1395 SdHoareTripleChecker+Valid, 1192 SdHoareTripleChecker+Invalid, 3168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 484 IncrementalHoareTripleChecker+Valid, 2684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-26 11:44:05,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1395 Valid, 1192 Invalid, 3168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [484 Valid, 2684 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-26 11:44:05,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2023-11-26 11:44:05,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 474. [2023-11-26 11:44:05,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 361 states have (on average 1.5955678670360112) internal successors, (576), 368 states have internal predecessors, (576), 80 states have call successors, (80), 29 states have call predecessors, (80), 32 states have return successors, (87), 78 states have call predecessors, (87), 79 states have call successors, (87) [2023-11-26 11:44:05,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 743 transitions. [2023-11-26 11:44:05,360 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 743 transitions. Word has length 175 [2023-11-26 11:44:05,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:44:05,360 INFO L495 AbstractCegarLoop]: Abstraction has 474 states and 743 transitions. [2023-11-26 11:44:05,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.375) internal successors, (99), 5 states have internal predecessors, (99), 3 states have call successors, (26), 6 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2023-11-26 11:44:05,361 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 743 transitions. [2023-11-26 11:44:05,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-11-26 11:44:05,365 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:44:05,365 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:05,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 11:44:05,385 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:44:05,386 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:05,386 INFO L85 PathProgramCache]: Analyzing trace with hash -2117178574, now seen corresponding path program 1 times [2023-11-26 11:44:05,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:05,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551680434] [2023-11-26 11:44:05,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:05,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:05,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:05,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:44:05,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:05,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 11:44:05,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:05,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-26 11:44:05,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:05,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-26 11:44:05,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:05,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-26 11:44:05,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:05,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-26 11:44:05,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:05,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-26 11:44:05,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:05,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-26 11:44:05,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:05,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-26 11:44:05,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:05,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-26 11:44:05,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:05,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-26 11:44:05,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:05,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-26 11:44:05,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:05,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-26 11:44:05,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:05,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-26 11:44:05,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:05,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-11-26 11:44:05,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:05,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-11-26 11:44:05,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:05,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:44:05,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:05,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-11-26 11:44:05,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:05,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-11-26 11:44:05,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:05,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-26 11:44:05,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:05,714 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-11-26 11:44:05,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:05,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551680434] [2023-11-26 11:44:05,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551680434] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:05,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:05,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-26 11:44:05,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498743892] [2023-11-26 11:44:05,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:05,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-26 11:44:05,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:05,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-26 11:44:05,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-11-26 11:44:05,718 INFO L87 Difference]: Start difference. First operand 474 states and 743 transitions. Second operand has 12 states, 11 states have (on average 8.818181818181818) internal successors, (97), 8 states have internal predecessors, (97), 4 states have call successors, (23), 6 states have call predecessors, (23), 3 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2023-11-26 11:44:09,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:44:09,606 INFO L93 Difference]: Finished difference Result 1032 states and 1651 transitions. [2023-11-26 11:44:09,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-26 11:44:09,607 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.818181818181818) internal successors, (97), 8 states have internal predecessors, (97), 4 states have call successors, (23), 6 states have call predecessors, (23), 3 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) Word has length 158 [2023-11-26 11:44:09,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:44:09,612 INFO L225 Difference]: With dead ends: 1032 [2023-11-26 11:44:09,613 INFO L226 Difference]: Without dead ends: 581 [2023-11-26 11:44:09,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2023-11-26 11:44:09,616 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 1453 mSDsluCounter, 1472 mSDsCounter, 0 mSdLazyCounter, 4337 mSolverCounterSat, 516 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1454 SdHoareTripleChecker+Valid, 1653 SdHoareTripleChecker+Invalid, 4853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 516 IncrementalHoareTripleChecker+Valid, 4337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-11-26 11:44:09,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1454 Valid, 1653 Invalid, 4853 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [516 Valid, 4337 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-11-26 11:44:09,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2023-11-26 11:44:09,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 474. [2023-11-26 11:44:09,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 361 states have (on average 1.5955678670360112) internal successors, (576), 368 states have internal predecessors, (576), 80 states have call successors, (80), 29 states have call predecessors, (80), 32 states have return successors, (86), 78 states have call predecessors, (86), 79 states have call successors, (86) [2023-11-26 11:44:09,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 742 transitions. [2023-11-26 11:44:09,667 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 742 transitions. Word has length 158 [2023-11-26 11:44:09,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:44:09,668 INFO L495 AbstractCegarLoop]: Abstraction has 474 states and 742 transitions. [2023-11-26 11:44:09,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.818181818181818) internal successors, (97), 8 states have internal predecessors, (97), 4 states have call successors, (23), 6 states have call predecessors, (23), 3 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2023-11-26 11:44:09,668 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 742 transitions. [2023-11-26 11:44:09,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-11-26 11:44:09,672 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:44:09,672 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:09,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-26 11:44:09,673 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:44:09,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:09,673 INFO L85 PathProgramCache]: Analyzing trace with hash 861795971, now seen corresponding path program 2 times [2023-11-26 11:44:09,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:09,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935484887] [2023-11-26 11:44:09,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:09,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:09,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:09,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:44:09,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:09,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 11:44:09,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:09,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-26 11:44:09,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:09,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-26 11:44:09,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:09,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-26 11:44:09,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:09,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-26 11:44:09,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:09,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-26 11:44:09,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:09,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-26 11:44:09,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:09,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-26 11:44:09,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:09,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-26 11:44:09,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:09,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-26 11:44:09,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:09,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-26 11:44:09,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:09,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-26 11:44:09,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:09,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-26 11:44:09,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:09,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-26 11:44:09,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:09,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-26 11:44:09,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:09,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:44:09,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:09,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-26 11:44:09,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:09,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-11-26 11:44:09,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:09,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-11-26 11:44:09,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:10,000 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-11-26 11:44:10,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:10,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935484887] [2023-11-26 11:44:10,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935484887] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:10,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:10,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-26 11:44:10,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069357048] [2023-11-26 11:44:10,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:10,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-26 11:44:10,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:10,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-26 11:44:10,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-11-26 11:44:10,003 INFO L87 Difference]: Start difference. First operand 474 states and 742 transitions. Second operand has 12 states, 11 states have (on average 8.909090909090908) internal successors, (98), 8 states have internal predecessors, (98), 4 states have call successors, (23), 6 states have call predecessors, (23), 3 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2023-11-26 11:44:13,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:44:13,609 INFO L93 Difference]: Finished difference Result 1034 states and 1657 transitions. [2023-11-26 11:44:13,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-26 11:44:13,609 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.909090909090908) internal successors, (98), 8 states have internal predecessors, (98), 4 states have call successors, (23), 6 states have call predecessors, (23), 3 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) Word has length 159 [2023-11-26 11:44:13,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:44:13,615 INFO L225 Difference]: With dead ends: 1034 [2023-11-26 11:44:13,615 INFO L226 Difference]: Without dead ends: 583 [2023-11-26 11:44:13,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2023-11-26 11:44:13,618 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 1445 mSDsluCounter, 1472 mSDsCounter, 0 mSdLazyCounter, 4276 mSolverCounterSat, 533 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1446 SdHoareTripleChecker+Valid, 1651 SdHoareTripleChecker+Invalid, 4809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 533 IncrementalHoareTripleChecker+Valid, 4276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:44:13,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1446 Valid, 1651 Invalid, 4809 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [533 Valid, 4276 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-11-26 11:44:13,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2023-11-26 11:44:13,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 476. [2023-11-26 11:44:13,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 362 states have (on average 1.5939226519337018) internal successors, (577), 370 states have internal predecessors, (577), 80 states have call successors, (80), 29 states have call predecessors, (80), 33 states have return successors, (91), 78 states have call predecessors, (91), 79 states have call successors, (91) [2023-11-26 11:44:13,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 748 transitions. [2023-11-26 11:44:13,665 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 748 transitions. Word has length 159 [2023-11-26 11:44:13,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:44:13,665 INFO L495 AbstractCegarLoop]: Abstraction has 476 states and 748 transitions. [2023-11-26 11:44:13,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.909090909090908) internal successors, (98), 8 states have internal predecessors, (98), 4 states have call successors, (23), 6 states have call predecessors, (23), 3 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2023-11-26 11:44:13,666 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 748 transitions. [2023-11-26 11:44:13,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-11-26 11:44:13,670 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:44:13,670 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:13,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-26 11:44:13,671 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:44:13,671 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:13,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1863378003, now seen corresponding path program 1 times [2023-11-26 11:44:13,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:13,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761202481] [2023-11-26 11:44:13,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:13,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:13,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:13,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:44:13,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:13,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 11:44:13,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:13,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-26 11:44:13,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:13,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-26 11:44:13,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:13,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-26 11:44:13,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:13,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-26 11:44:13,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:13,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-26 11:44:13,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:13,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-26 11:44:13,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:13,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-26 11:44:13,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:13,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-26 11:44:13,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:13,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-26 11:44:13,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:13,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-26 11:44:13,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:13,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-26 11:44:13,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:13,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-26 11:44:13,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:13,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-26 11:44:13,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:14,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-11-26 11:44:14,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:14,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:44:14,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:14,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-11-26 11:44:14,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:14,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-26 11:44:14,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:14,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-11-26 11:44:14,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:14,026 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-26 11:44:14,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:14,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761202481] [2023-11-26 11:44:14,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761202481] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:44:14,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [855197974] [2023-11-26 11:44:14,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:14,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:44:14,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09164f2-275e-4664-9fbd-ba263a8b94c1/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:44:14,031 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09164f2-275e-4664-9fbd-ba263a8b94c1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:44:14,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09164f2-275e-4664-9fbd-ba263a8b94c1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-26 11:44:14,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:14,397 INFO L262 TraceCheckSpWp]: Trace formula consists of 1332 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 11:44:14,403 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:44:14,448 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-11-26 11:44:14,449 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:44:14,603 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-11-26 11:44:14,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [855197974] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:44:14,603 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:44:14,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2023-11-26 11:44:14,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142440784] [2023-11-26 11:44:14,607 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:44:14,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-26 11:44:14,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:14,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-26 11:44:14,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2023-11-26 11:44:14,610 INFO L87 Difference]: Start difference. First operand 476 states and 748 transitions. Second operand has 15 states, 14 states have (on average 11.428571428571429) internal successors, (160), 11 states have internal predecessors, (160), 4 states have call successors, (46), 6 states have call predecessors, (46), 3 states have return successors, (38), 3 states have call predecessors, (38), 4 states have call successors, (38) [2023-11-26 11:44:18,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:44:18,663 INFO L93 Difference]: Finished difference Result 1453 states and 2433 transitions. [2023-11-26 11:44:18,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-26 11:44:18,664 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 11.428571428571429) internal successors, (160), 11 states have internal predecessors, (160), 4 states have call successors, (46), 6 states have call predecessors, (46), 3 states have return successors, (38), 3 states have call predecessors, (38), 4 states have call successors, (38) Word has length 160 [2023-11-26 11:44:18,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:44:18,675 INFO L225 Difference]: With dead ends: 1453 [2023-11-26 11:44:18,676 INFO L226 Difference]: Without dead ends: 1003 [2023-11-26 11:44:18,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 386 GetRequests, 356 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=165, Invalid=827, Unknown=0, NotChecked=0, Total=992 [2023-11-26 11:44:18,680 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 3014 mSDsluCounter, 1649 mSDsCounter, 0 mSdLazyCounter, 4067 mSolverCounterSat, 994 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3036 SdHoareTripleChecker+Valid, 1827 SdHoareTripleChecker+Invalid, 5061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 994 IncrementalHoareTripleChecker+Valid, 4067 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-11-26 11:44:18,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3036 Valid, 1827 Invalid, 5061 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [994 Valid, 4067 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-11-26 11:44:18,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1003 states. [2023-11-26 11:44:18,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1003 to 881. [2023-11-26 11:44:18,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 881 states, 688 states have (on average 1.6424418604651163) internal successors, (1130), 696 states have internal predecessors, (1130), 159 states have call successors, (159), 29 states have call predecessors, (159), 33 states have return successors, (180), 157 states have call predecessors, (180), 158 states have call successors, (180) [2023-11-26 11:44:18,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 881 states to 881 states and 1469 transitions. [2023-11-26 11:44:18,757 INFO L78 Accepts]: Start accepts. Automaton has 881 states and 1469 transitions. Word has length 160 [2023-11-26 11:44:18,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:44:18,758 INFO L495 AbstractCegarLoop]: Abstraction has 881 states and 1469 transitions. [2023-11-26 11:44:18,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 11.428571428571429) internal successors, (160), 11 states have internal predecessors, (160), 4 states have call successors, (46), 6 states have call predecessors, (46), 3 states have return successors, (38), 3 states have call predecessors, (38), 4 states have call successors, (38) [2023-11-26 11:44:18,759 INFO L276 IsEmpty]: Start isEmpty. Operand 881 states and 1469 transitions. [2023-11-26 11:44:18,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-11-26 11:44:18,766 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:44:18,766 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:18,780 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09164f2-275e-4664-9fbd-ba263a8b94c1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-26 11:44:18,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c09164f2-275e-4664-9fbd-ba263a8b94c1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-26 11:44:18,975 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:44:18,976 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:18,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1535503078, now seen corresponding path program 1 times [2023-11-26 11:44:18,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:18,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079054866] [2023-11-26 11:44:18,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:18,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:19,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:19,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:44:19,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:19,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 11:44:19,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:19,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-26 11:44:19,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:19,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-26 11:44:19,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:19,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-26 11:44:19,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:19,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-26 11:44:19,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:19,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-26 11:44:19,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:19,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-26 11:44:19,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:19,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-26 11:44:19,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:19,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-26 11:44:19,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:19,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-26 11:44:19,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:19,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-26 11:44:19,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:19,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-26 11:44:19,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:19,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-11-26 11:44:19,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:19,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-11-26 11:44:19,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:19,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-11-26 11:44:19,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:19,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:44:19,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:19,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-11-26 11:44:19,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:19,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-26 11:44:19,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:19,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-11-26 11:44:19,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:19,134 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-11-26 11:44:19,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:19,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079054866] [2023-11-26 11:44:19,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079054866] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:19,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:19,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 11:44:19,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526347280] [2023-11-26 11:44:19,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:19,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 11:44:19,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:19,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 11:44:19,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:44:19,137 INFO L87 Difference]: Start difference. First operand 881 states and 1469 transitions. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-26 11:44:21,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:44:21,326 INFO L93 Difference]: Finished difference Result 2188 states and 3752 transitions. [2023-11-26 11:44:21,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-26 11:44:21,327 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 164 [2023-11-26 11:44:21,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:44:21,339 INFO L225 Difference]: With dead ends: 2188 [2023-11-26 11:44:21,339 INFO L226 Difference]: Without dead ends: 1375 [2023-11-26 11:44:21,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-26 11:44:21,345 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 1542 mSDsluCounter, 694 mSDsCounter, 0 mSdLazyCounter, 1462 mSolverCounterSat, 583 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1560 SdHoareTripleChecker+Valid, 897 SdHoareTripleChecker+Invalid, 2045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 583 IncrementalHoareTripleChecker+Valid, 1462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-26 11:44:21,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1560 Valid, 897 Invalid, 2045 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [583 Valid, 1462 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-26 11:44:21,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1375 states. [2023-11-26 11:44:21,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1375 to 1263. [2023-11-26 11:44:21,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1263 states, 991 states have (on average 1.656912209889001) internal successors, (1642), 999 states have internal predecessors, (1642), 238 states have call successors, (238), 29 states have call predecessors, (238), 33 states have return successors, (269), 236 states have call predecessors, (269), 237 states have call successors, (269) [2023-11-26 11:44:21,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1263 states to 1263 states and 2149 transitions. [2023-11-26 11:44:21,444 INFO L78 Accepts]: Start accepts. Automaton has 1263 states and 2149 transitions. Word has length 164 [2023-11-26 11:44:21,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:44:21,445 INFO L495 AbstractCegarLoop]: Abstraction has 1263 states and 2149 transitions. [2023-11-26 11:44:21,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-26 11:44:21,445 INFO L276 IsEmpty]: Start isEmpty. Operand 1263 states and 2149 transitions. [2023-11-26 11:44:21,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-11-26 11:44:21,455 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:44:21,456 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:21,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-26 11:44:21,456 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:44:21,456 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:21,457 INFO L85 PathProgramCache]: Analyzing trace with hash 284990763, now seen corresponding path program 1 times [2023-11-26 11:44:21,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:21,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082733642] [2023-11-26 11:44:21,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:21,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:21,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:21,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:44:21,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:21,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 11:44:21,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:21,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-26 11:44:21,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:21,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-26 11:44:21,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:21,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-26 11:44:21,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:21,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-26 11:44:21,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:21,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-26 11:44:21,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:21,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-26 11:44:21,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:21,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-26 11:44:21,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:21,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-26 11:44:21,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:21,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-26 11:44:21,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:21,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-26 11:44:21,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:21,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-26 11:44:21,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:21,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-26 11:44:21,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:21,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-26 11:44:21,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:21,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-26 11:44:21,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:21,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:44:21,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:21,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-11-26 11:44:21,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:21,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-11-26 11:44:21,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:21,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-11-26 11:44:21,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:21,625 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-11-26 11:44:21,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:21,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082733642] [2023-11-26 11:44:21,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082733642] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:21,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:21,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 11:44:21,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619535286] [2023-11-26 11:44:21,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:21,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 11:44:21,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:21,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 11:44:21,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:44:21,630 INFO L87 Difference]: Start difference. First operand 1263 states and 2149 transitions. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-26 11:44:23,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:44:23,663 INFO L93 Difference]: Finished difference Result 3139 states and 5438 transitions. [2023-11-26 11:44:23,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-26 11:44:23,664 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 165 [2023-11-26 11:44:23,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:44:23,681 INFO L225 Difference]: With dead ends: 3139 [2023-11-26 11:44:23,682 INFO L226 Difference]: Without dead ends: 1994 [2023-11-26 11:44:23,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-26 11:44:23,688 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 1517 mSDsluCounter, 689 mSDsCounter, 0 mSdLazyCounter, 1462 mSolverCounterSat, 583 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1536 SdHoareTripleChecker+Valid, 885 SdHoareTripleChecker+Invalid, 2045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 583 IncrementalHoareTripleChecker+Valid, 1462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-26 11:44:23,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1536 Valid, 885 Invalid, 2045 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [583 Valid, 1462 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-26 11:44:23,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1994 states. [2023-11-26 11:44:23,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1994 to 1882. [2023-11-26 11:44:23,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1882 states, 1491 states have (on average 1.664654594232059) internal successors, (2482), 1499 states have internal predecessors, (2482), 357 states have call successors, (357), 29 states have call predecessors, (357), 33 states have return successors, (388), 355 states have call predecessors, (388), 356 states have call successors, (388) [2023-11-26 11:44:23,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1882 states to 1882 states and 3227 transitions. [2023-11-26 11:44:23,870 INFO L78 Accepts]: Start accepts. Automaton has 1882 states and 3227 transitions. Word has length 165 [2023-11-26 11:44:23,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:44:23,870 INFO L495 AbstractCegarLoop]: Abstraction has 1882 states and 3227 transitions. [2023-11-26 11:44:23,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-26 11:44:23,870 INFO L276 IsEmpty]: Start isEmpty. Operand 1882 states and 3227 transitions. [2023-11-26 11:44:23,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-11-26 11:44:23,889 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:44:23,889 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:23,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-26 11:44:23,890 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:44:23,890 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:23,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1510158164, now seen corresponding path program 1 times [2023-11-26 11:44:23,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:23,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253901427] [2023-11-26 11:44:23,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:23,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:23,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:23,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:44:23,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:23,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 11:44:23,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:23,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-26 11:44:23,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:23,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-26 11:44:24,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:24,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-26 11:44:24,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:24,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-26 11:44:24,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:24,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-26 11:44:24,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:24,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-26 11:44:24,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:24,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-26 11:44:24,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:24,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-26 11:44:24,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:24,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-26 11:44:24,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:24,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-26 11:44:24,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:24,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-26 11:44:24,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:24,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-26 11:44:24,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:24,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-11-26 11:44:24,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:24,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-11-26 11:44:24,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:24,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:44:24,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:24,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-11-26 11:44:24,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:24,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-11-26 11:44:24,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:24,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-11-26 11:44:24,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:24,069 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-11-26 11:44:24,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:24,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253901427] [2023-11-26 11:44:24,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253901427] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:24,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:24,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 11:44:24,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735782358] [2023-11-26 11:44:24,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:24,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 11:44:24,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:24,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 11:44:24,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:44:24,074 INFO L87 Difference]: Start difference. First operand 1882 states and 3227 transitions. Second operand has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-26 11:44:26,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:44:26,180 INFO L93 Difference]: Finished difference Result 4579 states and 8009 transitions. [2023-11-26 11:44:26,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-26 11:44:26,181 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 166 [2023-11-26 11:44:26,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:44:26,203 INFO L225 Difference]: With dead ends: 4579 [2023-11-26 11:44:26,203 INFO L226 Difference]: Without dead ends: 2943 [2023-11-26 11:44:26,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-26 11:44:26,210 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 1574 mSDsluCounter, 680 mSDsCounter, 0 mSdLazyCounter, 1395 mSolverCounterSat, 588 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1593 SdHoareTripleChecker+Valid, 871 SdHoareTripleChecker+Invalid, 1983 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 588 IncrementalHoareTripleChecker+Valid, 1395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-26 11:44:26,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1593 Valid, 871 Invalid, 1983 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [588 Valid, 1395 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-26 11:44:26,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2943 states. [2023-11-26 11:44:26,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2943 to 2831. [2023-11-26 11:44:26,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2831 states, 2278 states have (on average 1.6712028094820017) internal successors, (3807), 2286 states have internal predecessors, (3807), 519 states have call successors, (519), 29 states have call predecessors, (519), 33 states have return successors, (566), 517 states have call predecessors, (566), 518 states have call successors, (566) [2023-11-26 11:44:26,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2831 states to 2831 states and 4892 transitions. [2023-11-26 11:44:26,386 INFO L78 Accepts]: Start accepts. Automaton has 2831 states and 4892 transitions. Word has length 166 [2023-11-26 11:44:26,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:44:26,386 INFO L495 AbstractCegarLoop]: Abstraction has 2831 states and 4892 transitions. [2023-11-26 11:44:26,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-26 11:44:26,387 INFO L276 IsEmpty]: Start isEmpty. Operand 2831 states and 4892 transitions. [2023-11-26 11:44:26,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2023-11-26 11:44:26,408 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:44:26,408 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:26,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-26 11:44:26,408 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:44:26,409 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:26,409 INFO L85 PathProgramCache]: Analyzing trace with hash -1553787574, now seen corresponding path program 1 times [2023-11-26 11:44:26,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:26,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025882928] [2023-11-26 11:44:26,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:26,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:26,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:26,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:44:26,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:26,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 11:44:26,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:26,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-26 11:44:26,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:26,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-26 11:44:26,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:26,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-26 11:44:26,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:26,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-26 11:44:26,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:26,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-26 11:44:26,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:26,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-26 11:44:26,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:26,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-26 11:44:26,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:26,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-26 11:44:26,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:26,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-26 11:44:26,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:26,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-26 11:44:26,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:26,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-26 11:44:26,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:26,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-26 11:44:26,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:26,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-26 11:44:26,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:26,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-26 11:44:26,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:26,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:44:26,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:26,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-26 11:44:26,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:26,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-11-26 11:44:26,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:26,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-11-26 11:44:26,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:26,553 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-11-26 11:44:26,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:26,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025882928] [2023-11-26 11:44:26,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025882928] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:26,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:26,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 11:44:26,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510055144] [2023-11-26 11:44:26,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:26,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 11:44:26,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:26,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 11:44:26,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:44:26,556 INFO L87 Difference]: Start difference. First operand 2831 states and 4892 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-26 11:44:28,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:44:28,661 INFO L93 Difference]: Finished difference Result 6851 states and 12077 transitions. [2023-11-26 11:44:28,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-26 11:44:28,662 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 167 [2023-11-26 11:44:28,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:44:28,699 INFO L225 Difference]: With dead ends: 6851 [2023-11-26 11:44:28,699 INFO L226 Difference]: Without dead ends: 4475 [2023-11-26 11:44:28,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-26 11:44:28,711 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 1563 mSDsluCounter, 680 mSDsCounter, 0 mSdLazyCounter, 1405 mSolverCounterSat, 586 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1582 SdHoareTripleChecker+Valid, 871 SdHoareTripleChecker+Invalid, 1991 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 586 IncrementalHoareTripleChecker+Valid, 1405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-26 11:44:28,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1582 Valid, 871 Invalid, 1991 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [586 Valid, 1405 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-26 11:44:28,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4475 states. [2023-11-26 11:44:28,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4475 to 4363. [2023-11-26 11:44:28,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4363 states, 3565 states have (on average 1.6760168302945302) internal successors, (5975), 3573 states have internal predecessors, (5975), 764 states have call successors, (764), 29 states have call predecessors, (764), 33 states have return successors, (837), 762 states have call predecessors, (837), 763 states have call successors, (837) [2023-11-26 11:44:29,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4363 states to 4363 states and 7576 transitions. [2023-11-26 11:44:29,008 INFO L78 Accepts]: Start accepts. Automaton has 4363 states and 7576 transitions. Word has length 167 [2023-11-26 11:44:29,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:44:29,008 INFO L495 AbstractCegarLoop]: Abstraction has 4363 states and 7576 transitions. [2023-11-26 11:44:29,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-26 11:44:29,010 INFO L276 IsEmpty]: Start isEmpty. Operand 4363 states and 7576 transitions. [2023-11-26 11:44:29,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-11-26 11:44:29,042 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:44:29,042 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:29,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-26 11:44:29,043 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:44:29,043 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:29,045 INFO L85 PathProgramCache]: Analyzing trace with hash 2127208912, now seen corresponding path program 1 times [2023-11-26 11:44:29,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:29,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938230904] [2023-11-26 11:44:29,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:29,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:29,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:29,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:44:29,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:29,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 11:44:29,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:29,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-26 11:44:29,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:29,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-26 11:44:29,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:29,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-26 11:44:29,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:29,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-26 11:44:29,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:29,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-26 11:44:29,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:29,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-26 11:44:29,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:29,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-26 11:44:29,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:29,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-26 11:44:29,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:29,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-26 11:44:29,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:29,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-26 11:44:29,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:29,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-26 11:44:29,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:29,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-11-26 11:44:29,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:29,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-11-26 11:44:29,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:29,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-11-26 11:44:29,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:29,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:44:29,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:29,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-11-26 11:44:29,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:29,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-11-26 11:44:29,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:29,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-26 11:44:29,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:29,240 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-11-26 11:44:29,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:29,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938230904] [2023-11-26 11:44:29,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938230904] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:29,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:29,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 11:44:29,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19554821] [2023-11-26 11:44:29,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:29,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 11:44:29,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:29,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 11:44:29,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:44:29,243 INFO L87 Difference]: Start difference. First operand 4363 states and 7576 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-26 11:44:31,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:44:31,486 INFO L93 Difference]: Finished difference Result 10904 states and 19288 transitions. [2023-11-26 11:44:31,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-26 11:44:31,487 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 168 [2023-11-26 11:44:31,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:44:31,542 INFO L225 Difference]: With dead ends: 10904 [2023-11-26 11:44:31,542 INFO L226 Difference]: Without dead ends: 7235 [2023-11-26 11:44:31,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-26 11:44:31,556 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 1572 mSDsluCounter, 704 mSDsCounter, 0 mSdLazyCounter, 1406 mSolverCounterSat, 611 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1592 SdHoareTripleChecker+Valid, 906 SdHoareTripleChecker+Invalid, 2017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 611 IncrementalHoareTripleChecker+Valid, 1406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-26 11:44:31,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1592 Valid, 906 Invalid, 2017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [611 Valid, 1406 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-26 11:44:31,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7235 states. [2023-11-26 11:44:31,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7235 to 7123. [2023-11-26 11:44:31,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7123 states, 5832 states have (on average 1.6719821673525377) internal successors, (9751), 5840 states have internal predecessors, (9751), 1257 states have call successors, (1257), 29 states have call predecessors, (1257), 33 states have return successors, (1374), 1255 states have call predecessors, (1374), 1256 states have call successors, (1374) [2023-11-26 11:44:31,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7123 states to 7123 states and 12382 transitions. [2023-11-26 11:44:31,971 INFO L78 Accepts]: Start accepts. Automaton has 7123 states and 12382 transitions. Word has length 168 [2023-11-26 11:44:31,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:44:31,972 INFO L495 AbstractCegarLoop]: Abstraction has 7123 states and 12382 transitions. [2023-11-26 11:44:31,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-26 11:44:31,972 INFO L276 IsEmpty]: Start isEmpty. Operand 7123 states and 12382 transitions. [2023-11-26 11:44:32,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-11-26 11:44:32,027 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:44:32,027 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:32,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-26 11:44:32,028 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:44:32,028 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:32,028 INFO L85 PathProgramCache]: Analyzing trace with hash 297806886, now seen corresponding path program 1 times [2023-11-26 11:44:32,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:32,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845545830] [2023-11-26 11:44:32,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:32,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:32,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:32,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:44:32,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:32,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 11:44:32,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:32,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-26 11:44:32,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:32,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-26 11:44:32,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:32,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-26 11:44:32,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:32,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-26 11:44:32,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:32,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-26 11:44:32,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:32,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-26 11:44:32,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:32,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-26 11:44:32,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:32,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-26 11:44:32,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:32,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-26 11:44:32,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:32,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-26 11:44:32,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:32,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-26 11:44:32,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:32,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-26 11:44:32,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:32,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-26 11:44:32,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:32,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-26 11:44:32,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:32,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:44:32,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:32,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-11-26 11:44:32,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:32,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-11-26 11:44:32,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:32,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-11-26 11:44:32,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:32,252 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-11-26 11:44:32,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:32,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845545830] [2023-11-26 11:44:32,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845545830] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:32,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:32,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 11:44:32,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100747017] [2023-11-26 11:44:32,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:32,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 11:44:32,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:32,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 11:44:32,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:44:32,256 INFO L87 Difference]: Start difference. First operand 7123 states and 12382 transitions. Second operand has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20)