./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec0_productSimulator.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_08145a7b-61e4-45fd-8c13-25850395ddc5/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08145a7b-61e4-45fd-8c13-25850395ddc5/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_08145a7b-61e4-45fd-8c13-25850395ddc5/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08145a7b-61e4-45fd-8c13-25850395ddc5/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec0_productSimulator.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08145a7b-61e4-45fd-8c13-25850395ddc5/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_08145a7b-61e4-45fd-8c13-25850395ddc5/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 1b548755c8e9cfcfe9ed8b47fb1ac823ac6821056e7770bffa975fdbf413b243 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:41:00,039 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:41:00,160 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08145a7b-61e4-45fd-8c13-25850395ddc5/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-26 10:41:00,164 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:41:00,165 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:41:00,205 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:41:00,206 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:41:00,207 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:41:00,208 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 10:41:00,213 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 10:41:00,214 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 10:41:00,215 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 10:41:00,216 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:41:00,218 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:41:00,218 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:41:00,219 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:41:00,219 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 10:41:00,220 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 10:41:00,220 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 10:41:00,221 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 10:41:00,221 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:41:00,222 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 10:41:00,222 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 10:41:00,223 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 10:41:00,223 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 10:41:00,224 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:41:00,224 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:41:00,225 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:41:00,225 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:41:00,226 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 10:41:00,227 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 10:41:00,227 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:41:00,228 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:41:00,228 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 10:41:00,229 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 10:41:00,229 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 10:41:00,229 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 10:41:00,229 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 10:41:00,230 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 10:41:00,230 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 10:41:00,230 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 10:41:00,231 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 10:41:00,231 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_08145a7b-61e4-45fd-8c13-25850395ddc5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08145a7b-61e4-45fd-8c13-25850395ddc5/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b548755c8e9cfcfe9ed8b47fb1ac823ac6821056e7770bffa975fdbf413b243 [2023-11-26 10:41:00,573 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:41:00,607 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:41:00,610 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:41:00,611 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:41:00,612 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:41:00,613 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08145a7b-61e4-45fd-8c13-25850395ddc5/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/product-lines/email_spec0_productSimulator.cil.c [2023-11-26 10:41:03,872 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:41:04,339 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:41:04,339 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08145a7b-61e4-45fd-8c13-25850395ddc5/sv-benchmarks/c/product-lines/email_spec0_productSimulator.cil.c [2023-11-26 10:41:04,384 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08145a7b-61e4-45fd-8c13-25850395ddc5/bin/uautomizer-verify-VRDe98Ueme/data/2bf031617/d7a547ae45414f958f67fe27116ccbaf/FLAG6fbe0a9a3 [2023-11-26 10:41:04,404 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08145a7b-61e4-45fd-8c13-25850395ddc5/bin/uautomizer-verify-VRDe98Ueme/data/2bf031617/d7a547ae45414f958f67fe27116ccbaf [2023-11-26 10:41:04,411 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:41:04,413 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:41:04,418 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:41:04,419 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:41:04,425 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:41:04,426 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:41:04" (1/1) ... [2023-11-26 10:41:04,428 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28be657 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:04, skipping insertion in model container [2023-11-26 10:41:04,428 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:41:04" (1/1) ... [2023-11-26 10:41:04,543 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:41:04,911 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_08145a7b-61e4-45fd-8c13-25850395ddc5/sv-benchmarks/c/product-lines/email_spec0_productSimulator.cil.c[14867,14880] [2023-11-26 10:41:05,255 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:41:05,273 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:41:05,285 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [48] [2023-11-26 10:41:05,286 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [168] [2023-11-26 10:41:05,287 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [751] [2023-11-26 10:41:05,287 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [768] [2023-11-26 10:41:05,287 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [777] [2023-11-26 10:41:05,288 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1848] [2023-11-26 10:41:05,288 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2247] [2023-11-26 10:41:05,288 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2608] [2023-11-26 10:41:05,289 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptForward_spec.i","") [2874] [2023-11-26 10:41:05,289 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2893] [2023-11-26 10:41:05,290 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [3097] [2023-11-26 10:41:05,348 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_08145a7b-61e4-45fd-8c13-25850395ddc5/sv-benchmarks/c/product-lines/email_spec0_productSimulator.cil.c[14867,14880] [2023-11-26 10:41:05,488 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:41:05,552 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 10:41:05,559 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:41:05,560 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:05 WrapperNode [2023-11-26 10:41:05,560 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:41:05,562 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:41:05,562 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:41:05,563 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:41:05,572 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:05" (1/1) ... [2023-11-26 10:41:05,614 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:05" (1/1) ... [2023-11-26 10:41:05,751 INFO L138 Inliner]: procedures = 151, calls = 282, calls flagged for inlining = 67, calls inlined = 64, statements flattened = 1331 [2023-11-26 10:41:05,752 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:41:05,752 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:41:05,753 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:41:05,753 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:41:05,789 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:05" (1/1) ... [2023-11-26 10:41:05,789 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:05" (1/1) ... [2023-11-26 10:41:05,810 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:05" (1/1) ... [2023-11-26 10:41:05,865 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 10:41:05,865 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:05" (1/1) ... [2023-11-26 10:41:05,865 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:05" (1/1) ... [2023-11-26 10:41:05,896 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:05" (1/1) ... [2023-11-26 10:41:05,911 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:05" (1/1) ... [2023-11-26 10:41:05,920 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:05" (1/1) ... [2023-11-26 10:41:05,929 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:05" (1/1) ... [2023-11-26 10:41:05,943 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:41:05,944 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:41:05,944 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:41:05,944 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:41:05,946 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:05" (1/1) ... [2023-11-26 10:41:05,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:41:05,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08145a7b-61e4-45fd-8c13-25850395ddc5/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:41:05,984 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08145a7b-61e4-45fd-8c13-25850395ddc5/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 10:41:06,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08145a7b-61e4-45fd-8c13-25850395ddc5/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 10:41:06,077 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-11-26 10:41:06,077 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-11-26 10:41:06,078 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__before__Keys [2023-11-26 10:41:06,078 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__before__Keys [2023-11-26 10:41:06,078 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Sign [2023-11-26 10:41:06,078 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Sign [2023-11-26 10:41:06,078 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-11-26 10:41:06,078 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-11-26 10:41:06,079 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-11-26 10:41:06,079 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-11-26 10:41:06,079 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-11-26 10:41:06,079 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-11-26 10:41:06,079 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-11-26 10:41:06,079 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-11-26 10:41:06,080 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Verify [2023-11-26 10:41:06,080 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Verify [2023-11-26 10:41:06,080 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-11-26 10:41:06,080 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-11-26 10:41:06,080 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__before__Keys [2023-11-26 10:41:06,080 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__before__Keys [2023-11-26 10:41:06,081 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-11-26 10:41:06,081 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-11-26 10:41:06,081 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-11-26 10:41:06,081 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-11-26 10:41:06,081 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-11-26 10:41:06,081 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-11-26 10:41:06,082 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Decrypt [2023-11-26 10:41:06,082 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Decrypt [2023-11-26 10:41:06,082 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Encrypt [2023-11-26 10:41:06,082 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Encrypt [2023-11-26 10:41:06,082 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-11-26 10:41:06,082 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-11-26 10:41:06,083 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-11-26 10:41:06,083 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-11-26 10:41:06,083 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-11-26 10:41:06,083 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-11-26 10:41:06,083 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-11-26 10:41:06,083 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Forward [2023-11-26 10:41:06,084 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Forward [2023-11-26 10:41:06,099 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-11-26 10:41:06,100 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-11-26 10:41:06,100 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2023-11-26 10:41:06,100 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2023-11-26 10:41:06,100 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-11-26 10:41:06,100 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-11-26 10:41:06,100 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__before__Encrypt [2023-11-26 10:41:06,101 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__before__Encrypt [2023-11-26 10:41:06,101 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:41:06,101 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-11-26 10:41:06,101 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-11-26 10:41:06,101 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-11-26 10:41:06,102 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-11-26 10:41:06,102 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__AddressBook [2023-11-26 10:41:06,102 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__AddressBook [2023-11-26 10:41:06,102 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Encrypt [2023-11-26 10:41:06,102 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Encrypt [2023-11-26 10:41:06,102 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__AutoResponder [2023-11-26 10:41:06,103 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__AutoResponder [2023-11-26 10:41:06,103 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-11-26 10:41:06,103 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-11-26 10:41:06,103 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-11-26 10:41:06,103 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-11-26 10:41:06,103 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-11-26 10:41:06,104 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-11-26 10:41:06,104 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-11-26 10:41:06,104 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-11-26 10:41:06,104 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-11-26 10:41:06,104 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-11-26 10:41:06,104 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-11-26 10:41:06,105 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-11-26 10:41:06,105 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-11-26 10:41:06,105 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-11-26 10:41:06,105 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__before__Keys [2023-11-26 10:41:06,105 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__before__Keys [2023-11-26 10:41:06,105 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Verify [2023-11-26 10:41:06,106 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Verify [2023-11-26 10:41:06,106 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-11-26 10:41:06,106 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-11-26 10:41:06,106 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-11-26 10:41:06,106 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-11-26 10:41:06,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 10:41:06,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-26 10:41:06,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-26 10:41:06,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-26 10:41:06,107 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-11-26 10:41:06,107 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-11-26 10:41:06,107 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Sign [2023-11-26 10:41:06,108 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Sign [2023-11-26 10:41:06,108 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-11-26 10:41:06,108 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-11-26 10:41:06,108 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-11-26 10:41:06,108 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-11-26 10:41:06,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:41:06,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:41:06,432 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:41:06,435 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:41:07,965 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:41:08,110 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:41:08,110 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 10:41:08,111 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:41:08 BoogieIcfgContainer [2023-11-26 10:41:08,112 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:41:08,116 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 10:41:08,117 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 10:41:08,121 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 10:41:08,122 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 10:41:04" (1/3) ... [2023-11-26 10:41:08,124 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@453b6d94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:41:08, skipping insertion in model container [2023-11-26 10:41:08,125 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:05" (2/3) ... [2023-11-26 10:41:08,127 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@453b6d94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:41:08, skipping insertion in model container [2023-11-26 10:41:08,127 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:41:08" (3/3) ... [2023-11-26 10:41:08,129 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec0_productSimulator.cil.c [2023-11-26 10:41:08,152 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 10:41:08,153 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 10:41:08,253 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:41:08,262 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;@3d6477be, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:41:08,262 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 10:41:08,271 INFO L276 IsEmpty]: Start isEmpty. Operand has 571 states, 417 states have (on average 1.5515587529976018) internal successors, (647), 437 states have internal predecessors, (647), 109 states have call successors, (109), 43 states have call predecessors, (109), 43 states have return successors, (109), 108 states have call predecessors, (109), 109 states have call successors, (109) [2023-11-26 10:41:08,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-11-26 10:41:08,313 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:41:08,314 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:41:08,315 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:41:08,321 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:08,321 INFO L85 PathProgramCache]: Analyzing trace with hash -1347415236, now seen corresponding path program 1 times [2023-11-26 10:41:08,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:08,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694469750] [2023-11-26 10:41:08,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:08,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:08,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:09,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:41:09,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:09,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-26 10:41:09,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:09,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 10:41:09,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:09,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-26 10:41:09,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:09,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-26 10:41:09,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:09,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-26 10:41:09,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:09,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-26 10:41:09,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:09,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-26 10:41:09,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:09,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-26 10:41:09,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:09,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:41:09,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:09,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-26 10:41:09,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:09,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:41:09,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:09,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-26 10:41:09,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:09,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:41:09,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:09,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-26 10:41:09,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:09,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-26 10:41:09,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:09,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-26 10:41:09,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:09,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-26 10:41:09,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:09,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-26 10:41:09,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:09,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 10:41:09,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:09,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-26 10:41:09,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:09,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-11-26 10:41:09,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:09,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 10:41:09,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:09,448 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2023-11-26 10:41:09,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:09,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694469750] [2023-11-26 10:41:09,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694469750] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:09,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:41:09,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-26 10:41:09,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272606921] [2023-11-26 10:41:09,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:09,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 10:41:09,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:09,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 10:41:09,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-26 10:41:09,498 INFO L87 Difference]: Start difference. First operand has 571 states, 417 states have (on average 1.5515587529976018) internal successors, (647), 437 states have internal predecessors, (647), 109 states have call successors, (109), 43 states have call predecessors, (109), 43 states have return successors, (109), 108 states have call predecessors, (109), 109 states have call successors, (109) Second operand has 8 states, 8 states have (on average 9.375) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-26 10:41:13,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:41:13,827 INFO L93 Difference]: Finished difference Result 1307 states and 2064 transitions. [2023-11-26 10:41:13,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-26 10:41:13,831 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 147 [2023-11-26 10:41:13,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:41:13,876 INFO L225 Difference]: With dead ends: 1307 [2023-11-26 10:41:13,876 INFO L226 Difference]: Without dead ends: 764 [2023-11-26 10:41:13,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2023-11-26 10:41:13,896 INFO L413 NwaCegarLoop]: 295 mSDtfsCounter, 1764 mSDsluCounter, 1118 mSDsCounter, 0 mSdLazyCounter, 2805 mSolverCounterSat, 798 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1772 SdHoareTripleChecker+Valid, 1413 SdHoareTripleChecker+Invalid, 3603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 798 IncrementalHoareTripleChecker+Valid, 2805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-11-26 10:41:13,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1772 Valid, 1413 Invalid, 3603 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [798 Valid, 2805 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-11-26 10:41:13,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 764 states. [2023-11-26 10:41:14,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 764 to 568. [2023-11-26 10:41:14,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 415 states have (on average 1.5253012048192771) internal successors, (633), 434 states have internal predecessors, (633), 109 states have call successors, (109), 43 states have call predecessors, (109), 43 states have return successors, (108), 107 states have call predecessors, (108), 108 states have call successors, (108) [2023-11-26 10:41:14,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 850 transitions. [2023-11-26 10:41:14,199 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 850 transitions. Word has length 147 [2023-11-26 10:41:14,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:41:14,201 INFO L495 AbstractCegarLoop]: Abstraction has 568 states and 850 transitions. [2023-11-26 10:41:14,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-26 10:41:14,201 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 850 transitions. [2023-11-26 10:41:14,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-11-26 10:41:14,222 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:41:14,222 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:41:14,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 10:41:14,223 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:41:14,225 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:14,225 INFO L85 PathProgramCache]: Analyzing trace with hash 60607248, now seen corresponding path program 1 times [2023-11-26 10:41:14,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:14,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289491751] [2023-11-26 10:41:14,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:14,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:14,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:14,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:41:14,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:14,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-26 10:41:14,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:14,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 10:41:14,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:14,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-26 10:41:14,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:14,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-26 10:41:14,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:14,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-26 10:41:14,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:14,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-26 10:41:14,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:14,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-26 10:41:14,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:14,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-26 10:41:14,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:14,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:41:14,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:14,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-26 10:41:14,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:14,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:41:14,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:14,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-26 10:41:14,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:14,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:41:14,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:14,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-26 10:41:14,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:14,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-26 10:41:14,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:14,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-26 10:41:14,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:14,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-26 10:41:14,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:14,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-26 10:41:14,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:14,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 10:41:14,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:14,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-11-26 10:41:14,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:14,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-26 10:41:14,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:14,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 10:41:14,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:14,959 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2023-11-26 10:41:14,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:14,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289491751] [2023-11-26 10:41:14,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289491751] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:41:14,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [341667885] [2023-11-26 10:41:14,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:14,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:41:14,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08145a7b-61e4-45fd-8c13-25850395ddc5/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:41:14,976 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08145a7b-61e4-45fd-8c13-25850395ddc5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:41:15,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08145a7b-61e4-45fd-8c13-25850395ddc5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 10:41:15,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:15,562 INFO L262 TraceCheckSpWp]: Trace formula consists of 1437 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 10:41:15,578 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:41:15,629 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2023-11-26 10:41:15,630 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:41:15,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [341667885] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:15,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 10:41:15,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [11] total 12 [2023-11-26 10:41:15,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936219161] [2023-11-26 10:41:15,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:15,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:41:15,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:15,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:41:15,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2023-11-26 10:41:15,636 INFO L87 Difference]: Start difference. First operand 568 states and 850 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-26 10:41:15,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:41:15,815 INFO L93 Difference]: Finished difference Result 880 states and 1292 transitions. [2023-11-26 10:41:15,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:41:15,815 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 153 [2023-11-26 10:41:15,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:41:15,825 INFO L225 Difference]: With dead ends: 880 [2023-11-26 10:41:15,825 INFO L226 Difference]: Without dead ends: 570 [2023-11-26 10:41:15,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2023-11-26 10:41:15,830 INFO L413 NwaCegarLoop]: 829 mSDtfsCounter, 0 mSDsluCounter, 828 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1657 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:41:15,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1657 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 10:41:15,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2023-11-26 10:41:15,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 570. [2023-11-26 10:41:15,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 417 states have (on average 1.5227817745803358) internal successors, (635), 436 states have internal predecessors, (635), 109 states have call successors, (109), 43 states have call predecessors, (109), 43 states have return successors, (108), 107 states have call predecessors, (108), 108 states have call successors, (108) [2023-11-26 10:41:15,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 852 transitions. [2023-11-26 10:41:15,918 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 852 transitions. Word has length 153 [2023-11-26 10:41:15,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:41:15,919 INFO L495 AbstractCegarLoop]: Abstraction has 570 states and 852 transitions. [2023-11-26 10:41:15,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-26 10:41:15,919 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 852 transitions. [2023-11-26 10:41:15,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-11-26 10:41:15,925 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:41:15,925 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:41:15,947 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08145a7b-61e4-45fd-8c13-25850395ddc5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-26 10:41:16,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08145a7b-61e4-45fd-8c13-25850395ddc5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:41:16,135 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:41:16,136 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:16,136 INFO L85 PathProgramCache]: Analyzing trace with hash -1317222946, now seen corresponding path program 1 times [2023-11-26 10:41:16,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:16,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137309229] [2023-11-26 10:41:16,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:16,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:16,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:16,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:41:16,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:16,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-26 10:41:16,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:16,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 10:41:16,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:16,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-26 10:41:16,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:16,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-26 10:41:16,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:16,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-26 10:41:16,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:16,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-26 10:41:16,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:16,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-26 10:41:16,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:16,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-26 10:41:16,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:16,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:41:16,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:16,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-26 10:41:16,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:16,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:41:16,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:16,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-26 10:41:16,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:16,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:41:16,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:16,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-26 10:41:16,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:16,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-26 10:41:16,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:16,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-26 10:41:16,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:16,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-26 10:41:16,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:16,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-26 10:41:16,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:16,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 10:41:16,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:16,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-26 10:41:16,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:16,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-11-26 10:41:16,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:16,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 10:41:16,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:16,709 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-11-26 10:41:16,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:16,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137309229] [2023-11-26 10:41:16,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137309229] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:41:16,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [368194749] [2023-11-26 10:41:16,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:16,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:41:16,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08145a7b-61e4-45fd-8c13-25850395ddc5/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:41:16,713 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08145a7b-61e4-45fd-8c13-25850395ddc5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:41:16,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08145a7b-61e4-45fd-8c13-25850395ddc5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-26 10:41:17,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:17,189 INFO L262 TraceCheckSpWp]: Trace formula consists of 1450 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-26 10:41:17,199 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:41:17,363 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2023-11-26 10:41:17,366 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:41:17,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [368194749] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:17,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 10:41:17,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16 [2023-11-26 10:41:17,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432440290] [2023-11-26 10:41:17,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:17,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 10:41:17,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:17,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 10:41:17,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2023-11-26 10:41:17,372 INFO L87 Difference]: Start difference. First operand 570 states and 852 transitions. Second operand has 7 states, 6 states have (on average 15.333333333333334) internal successors, (92), 7 states have internal predecessors, (92), 4 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2023-11-26 10:41:17,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:41:17,649 INFO L93 Difference]: Finished difference Result 1091 states and 1637 transitions. [2023-11-26 10:41:17,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 10:41:17,650 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.333333333333334) internal successors, (92), 7 states have internal predecessors, (92), 4 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) Word has length 159 [2023-11-26 10:41:17,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:41:17,655 INFO L225 Difference]: With dead ends: 1091 [2023-11-26 10:41:17,655 INFO L226 Difference]: Without dead ends: 574 [2023-11-26 10:41:17,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2023-11-26 10:41:17,659 INFO L413 NwaCegarLoop]: 817 mSDtfsCounter, 12 mSDsluCounter, 4064 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 4881 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:41:17,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 4881 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 10:41:17,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2023-11-26 10:41:17,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 574. [2023-11-26 10:41:17,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 419 states have (on average 1.5202863961813842) internal successors, (637), 439 states have internal predecessors, (637), 109 states have call successors, (109), 43 states have call predecessors, (109), 45 states have return successors, (112), 108 states have call predecessors, (112), 108 states have call successors, (112) [2023-11-26 10:41:17,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 858 transitions. [2023-11-26 10:41:17,729 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 858 transitions. Word has length 159 [2023-11-26 10:41:17,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:41:17,729 INFO L495 AbstractCegarLoop]: Abstraction has 574 states and 858 transitions. [2023-11-26 10:41:17,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.333333333333334) internal successors, (92), 7 states have internal predecessors, (92), 4 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2023-11-26 10:41:17,730 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 858 transitions. [2023-11-26 10:41:17,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-11-26 10:41:17,735 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:41:17,735 INFO L195 NwaCegarLoop]: trace histogram [8, 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, 1] [2023-11-26 10:41:17,743 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08145a7b-61e4-45fd-8c13-25850395ddc5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-26 10:41:17,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08145a7b-61e4-45fd-8c13-25850395ddc5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:41:17,944 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:41:17,944 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:17,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1558953115, now seen corresponding path program 1 times [2023-11-26 10:41:17,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:17,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764532050] [2023-11-26 10:41:17,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:17,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:17,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:18,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:41:18,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:18,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-26 10:41:18,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:18,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 10:41:18,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:18,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-26 10:41:18,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:18,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-26 10:41:18,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:18,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-26 10:41:18,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:18,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-26 10:41:18,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:18,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-26 10:41:18,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:18,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-26 10:41:18,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:18,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:41:18,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:18,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-26 10:41:18,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:18,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:41:18,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:18,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-26 10:41:18,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:18,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:41:18,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:18,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-26 10:41:18,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:18,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-26 10:41:18,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:18,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-26 10:41:18,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:18,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-26 10:41:18,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:18,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-26 10:41:18,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:18,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 10:41:18,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:18,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-11-26 10:41:18,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:18,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 10:41:18,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:18,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-11-26 10:41:18,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:18,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-11-26 10:41:18,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:18,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 10:41:18,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:18,400 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2023-11-26 10:41:18,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:18,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764532050] [2023-11-26 10:41:18,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764532050] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:18,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:41:18,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-26 10:41:18,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317834694] [2023-11-26 10:41:18,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:18,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-26 10:41:18,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:18,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-26 10:41:18,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-11-26 10:41:18,404 INFO L87 Difference]: Start difference. First operand 574 states and 858 transitions. Second operand has 11 states, 10 states have (on average 9.4) internal successors, (94), 7 states have internal predecessors, (94), 4 states have call successors, (31), 6 states have call predecessors, (31), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2023-11-26 10:41:23,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:41:23,411 INFO L93 Difference]: Finished difference Result 1273 states and 1969 transitions. [2023-11-26 10:41:23,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-26 10:41:23,412 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 9.4) internal successors, (94), 7 states have internal predecessors, (94), 4 states have call successors, (31), 6 states have call predecessors, (31), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) Word has length 172 [2023-11-26 10:41:23,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:41:23,426 INFO L225 Difference]: With dead ends: 1273 [2023-11-26 10:41:23,427 INFO L226 Difference]: Without dead ends: 772 [2023-11-26 10:41:23,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=117, Invalid=389, Unknown=0, NotChecked=0, Total=506 [2023-11-26 10:41:23,432 INFO L413 NwaCegarLoop]: 277 mSDtfsCounter, 1791 mSDsluCounter, 1789 mSDsCounter, 0 mSdLazyCounter, 5057 mSolverCounterSat, 791 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1803 SdHoareTripleChecker+Valid, 2066 SdHoareTripleChecker+Invalid, 5848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 791 IncrementalHoareTripleChecker+Valid, 5057 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-11-26 10:41:23,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1803 Valid, 2066 Invalid, 5848 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [791 Valid, 5057 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-11-26 10:41:23,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 772 states. [2023-11-26 10:41:23,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 772 to 576. [2023-11-26 10:41:23,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 420 states have (on average 1.519047619047619) internal successors, (638), 440 states have internal predecessors, (638), 109 states have call successors, (109), 43 states have call predecessors, (109), 46 states have return successors, (113), 109 states have call predecessors, (113), 108 states have call successors, (113) [2023-11-26 10:41:23,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 860 transitions. [2023-11-26 10:41:23,520 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 860 transitions. Word has length 172 [2023-11-26 10:41:23,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:41:23,522 INFO L495 AbstractCegarLoop]: Abstraction has 576 states and 860 transitions. [2023-11-26 10:41:23,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 9.4) internal successors, (94), 7 states have internal predecessors, (94), 4 states have call successors, (31), 6 states have call predecessors, (31), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2023-11-26 10:41:23,522 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 860 transitions. [2023-11-26 10:41:23,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-11-26 10:41:23,528 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:41:23,528 INFO L195 NwaCegarLoop]: trace histogram [8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:41:23,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 10:41:23,529 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:41:23,529 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:23,529 INFO L85 PathProgramCache]: Analyzing trace with hash 370621378, now seen corresponding path program 1 times [2023-11-26 10:41:23,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:23,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102483192] [2023-11-26 10:41:23,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:23,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:23,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:23,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:41:23,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:23,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-26 10:41:23,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:23,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 10:41:23,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:23,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-26 10:41:23,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:23,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-26 10:41:23,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:23,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-26 10:41:23,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:23,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-26 10:41:23,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:23,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-26 10:41:23,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:23,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-26 10:41:23,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:23,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:41:23,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:23,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-26 10:41:23,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:23,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:41:23,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:23,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-26 10:41:23,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:23,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:41:23,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:23,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-26 10:41:23,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:23,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-26 10:41:23,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:23,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-26 10:41:23,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:23,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-11-26 10:41:23,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:23,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-26 10:41:23,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:23,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-11-26 10:41:23,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:23,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 10:41:23,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:23,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-11-26 10:41:23,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:23,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 10:41:23,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:23,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-11-26 10:41:23,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:23,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-11-26 10:41:23,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:23,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 10:41:24,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:24,002 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2023-11-26 10:41:24,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:24,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102483192] [2023-11-26 10:41:24,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102483192] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:24,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:41:24,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-26 10:41:24,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317041926] [2023-11-26 10:41:24,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:24,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-26 10:41:24,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:24,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-26 10:41:24,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-11-26 10:41:24,007 INFO L87 Difference]: Start difference. First operand 576 states and 860 transitions. Second operand has 11 states, 10 states have (on average 10.0) internal successors, (100), 7 states have internal predecessors, (100), 4 states have call successors, (32), 6 states have call predecessors, (32), 3 states have return successors, (25), 3 states have call predecessors, (25), 4 states have call successors, (25) [2023-11-26 10:41:28,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:41:28,868 INFO L93 Difference]: Finished difference Result 1277 states and 1975 transitions. [2023-11-26 10:41:28,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-26 10:41:28,869 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 10.0) internal successors, (100), 7 states have internal predecessors, (100), 4 states have call successors, (32), 6 states have call predecessors, (32), 3 states have return successors, (25), 3 states have call predecessors, (25), 4 states have call successors, (25) Word has length 180 [2023-11-26 10:41:28,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:41:28,877 INFO L225 Difference]: With dead ends: 1277 [2023-11-26 10:41:28,880 INFO L226 Difference]: Without dead ends: 776 [2023-11-26 10:41:28,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=117, Invalid=389, Unknown=0, NotChecked=0, Total=506 [2023-11-26 10:41:28,884 INFO L413 NwaCegarLoop]: 277 mSDtfsCounter, 1774 mSDsluCounter, 1789 mSDsCounter, 0 mSdLazyCounter, 5207 mSolverCounterSat, 777 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1783 SdHoareTripleChecker+Valid, 2066 SdHoareTripleChecker+Invalid, 5984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 777 IncrementalHoareTripleChecker+Valid, 5207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-11-26 10:41:28,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1783 Valid, 2066 Invalid, 5984 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [777 Valid, 5207 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-11-26 10:41:28,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2023-11-26 10:41:28,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 578. [2023-11-26 10:41:28,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 578 states, 421 states have (on average 1.517814726840855) internal successors, (639), 442 states have internal predecessors, (639), 109 states have call successors, (109), 43 states have call predecessors, (109), 47 states have return successors, (116), 109 states have call predecessors, (116), 108 states have call successors, (116) [2023-11-26 10:41:28,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 864 transitions. [2023-11-26 10:41:28,952 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 864 transitions. Word has length 180 [2023-11-26 10:41:28,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:41:28,953 INFO L495 AbstractCegarLoop]: Abstraction has 578 states and 864 transitions. [2023-11-26 10:41:28,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 10.0) internal successors, (100), 7 states have internal predecessors, (100), 4 states have call successors, (32), 6 states have call predecessors, (32), 3 states have return successors, (25), 3 states have call predecessors, (25), 4 states have call successors, (25) [2023-11-26 10:41:28,953 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 864 transitions. [2023-11-26 10:41:28,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-11-26 10:41:28,958 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:41:28,958 INFO L195 NwaCegarLoop]: trace histogram [8, 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, 1, 1, 1] [2023-11-26 10:41:28,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 10:41:28,959 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:41:28,959 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:28,959 INFO L85 PathProgramCache]: Analyzing trace with hash 443814134, now seen corresponding path program 1 times [2023-11-26 10:41:28,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:28,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491914487] [2023-11-26 10:41:28,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:28,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:29,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:29,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:41:29,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:29,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-26 10:41:29,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:29,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 10:41:29,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:29,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-26 10:41:29,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:29,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-26 10:41:29,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:29,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-26 10:41:29,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:29,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-26 10:41:29,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:29,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-26 10:41:29,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:29,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-26 10:41:29,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:29,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:41:29,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:29,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-26 10:41:29,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:29,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:41:29,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:29,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-26 10:41:29,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:29,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:41:29,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:29,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-26 10:41:29,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:29,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-26 10:41:29,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:29,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-26 10:41:29,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:29,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-26 10:41:29,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:29,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-26 10:41:29,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:29,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 10:41:29,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:29,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-11-26 10:41:29,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:29,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 10:41:29,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:29,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-11-26 10:41:29,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:29,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-11-26 10:41:29,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:29,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 10:41:29,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:29,260 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2023-11-26 10:41:29,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:29,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491914487] [2023-11-26 10:41:29,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491914487] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:41:29,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1721639470] [2023-11-26 10:41:29,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:29,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:41:29,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08145a7b-61e4-45fd-8c13-25850395ddc5/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:41:29,263 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08145a7b-61e4-45fd-8c13-25850395ddc5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:41:29,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08145a7b-61e4-45fd-8c13-25850395ddc5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-26 10:41:29,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:29,696 INFO L262 TraceCheckSpWp]: Trace formula consists of 1504 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 10:41:29,703 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:41:29,837 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2023-11-26 10:41:29,837 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:41:29,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1721639470] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:29,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 10:41:29,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2023-11-26 10:41:29,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178615988] [2023-11-26 10:41:29,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:29,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:41:29,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:29,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:41:29,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-26 10:41:29,840 INFO L87 Difference]: Start difference. First operand 578 states and 864 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 3 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2023-11-26 10:41:30,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:41:30,011 INFO L93 Difference]: Finished difference Result 1404 states and 2108 transitions. [2023-11-26 10:41:30,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:41:30,012 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 3 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 174 [2023-11-26 10:41:30,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:41:30,020 INFO L225 Difference]: With dead ends: 1404 [2023-11-26 10:41:30,021 INFO L226 Difference]: Without dead ends: 1101 [2023-11-26 10:41:30,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-26 10:41:30,024 INFO L413 NwaCegarLoop]: 864 mSDtfsCounter, 717 mSDsluCounter, 797 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 717 SdHoareTripleChecker+Valid, 1661 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:41:30,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [717 Valid, 1661 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 10:41:30,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1101 states. [2023-11-26 10:41:30,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1101 to 1099. [2023-11-26 10:41:30,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1099 states, 804 states have (on average 1.5236318407960199) internal successors, (1225), 842 states have internal predecessors, (1225), 200 states have call successors, (200), 86 states have call predecessors, (200), 94 states have return successors, (227), 201 states have call predecessors, (227), 198 states have call successors, (227) [2023-11-26 10:41:30,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1099 states to 1099 states and 1652 transitions. [2023-11-26 10:41:30,164 INFO L78 Accepts]: Start accepts. Automaton has 1099 states and 1652 transitions. Word has length 174 [2023-11-26 10:41:30,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:41:30,165 INFO L495 AbstractCegarLoop]: Abstraction has 1099 states and 1652 transitions. [2023-11-26 10:41:30,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 3 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2023-11-26 10:41:30,165 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states and 1652 transitions. [2023-11-26 10:41:30,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-11-26 10:41:30,172 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:41:30,172 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:41:30,181 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08145a7b-61e4-45fd-8c13-25850395ddc5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-26 10:41:30,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08145a7b-61e4-45fd-8c13-25850395ddc5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:41:30,381 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:41:30,381 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:30,381 INFO L85 PathProgramCache]: Analyzing trace with hash 148307849, now seen corresponding path program 1 times [2023-11-26 10:41:30,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:30,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635730150] [2023-11-26 10:41:30,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:30,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:30,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:30,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:41:30,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:30,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-26 10:41:30,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:30,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 10:41:30,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:30,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-26 10:41:30,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:30,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-26 10:41:30,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:30,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-26 10:41:30,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:30,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-26 10:41:30,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:30,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-26 10:41:30,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:30,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-26 10:41:30,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:30,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:41:30,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:30,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-26 10:41:30,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:30,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:41:30,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:30,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-26 10:41:30,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:30,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:41:30,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:30,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-26 10:41:30,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:30,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-26 10:41:30,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:30,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-26 10:41:30,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:30,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-26 10:41:30,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:30,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-11-26 10:41:30,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:30,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 10:41:30,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:30,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-11-26 10:41:30,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:30,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-11-26 10:41:30,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:30,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 10:41:30,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:30,615 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2023-11-26 10:41:30,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:30,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635730150] [2023-11-26 10:41:30,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635730150] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:41:30,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [837801109] [2023-11-26 10:41:30,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:30,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:41:30,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08145a7b-61e4-45fd-8c13-25850395ddc5/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:41:30,617 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08145a7b-61e4-45fd-8c13-25850395ddc5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:41:30,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08145a7b-61e4-45fd-8c13-25850395ddc5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-26 10:41:31,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:31,039 INFO L262 TraceCheckSpWp]: Trace formula consists of 1453 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 10:41:31,047 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:41:31,080 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2023-11-26 10:41:31,081 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 10:41:31,206 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2023-11-26 10:41:31,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [837801109] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 10:41:31,207 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 10:41:31,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2023-11-26 10:41:31,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766696260] [2023-11-26 10:41:31,208 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 10:41:31,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-26 10:41:31,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:31,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-26 10:41:31,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-26 10:41:31,211 INFO L87 Difference]: Start difference. First operand 1099 states and 1652 transitions. Second operand has 11 states, 11 states have (on average 11.636363636363637) internal successors, (128), 7 states have internal predecessors, (128), 2 states have call successors, (50), 6 states have call predecessors, (50), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-11-26 10:41:35,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:41:35,494 INFO L93 Difference]: Finished difference Result 2784 states and 4580 transitions. [2023-11-26 10:41:35,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-26 10:41:35,494 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.636363636363637) internal successors, (128), 7 states have internal predecessors, (128), 2 states have call successors, (50), 6 states have call predecessors, (50), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 162 [2023-11-26 10:41:35,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:41:35,513 INFO L225 Difference]: With dead ends: 2784 [2023-11-26 10:41:35,513 INFO L226 Difference]: Without dead ends: 2194 [2023-11-26 10:41:35,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 382 GetRequests, 367 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2023-11-26 10:41:35,518 INFO L413 NwaCegarLoop]: 316 mSDtfsCounter, 2021 mSDsluCounter, 1813 mSDsCounter, 0 mSdLazyCounter, 3771 mSolverCounterSat, 769 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2083 SdHoareTripleChecker+Valid, 2129 SdHoareTripleChecker+Invalid, 4540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 769 IncrementalHoareTripleChecker+Valid, 3771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-11-26 10:41:35,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2083 Valid, 2129 Invalid, 4540 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [769 Valid, 3771 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-11-26 10:41:35,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2194 states. [2023-11-26 10:41:35,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2194 to 1801. [2023-11-26 10:41:35,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1801 states, 1402 states have (on average 1.5984308131241085) internal successors, (2241), 1453 states have internal predecessors, (2241), 302 states have call successors, (302), 86 states have call predecessors, (302), 96 states have return successors, (332), 305 states have call predecessors, (332), 300 states have call successors, (332) [2023-11-26 10:41:35,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1801 states to 1801 states and 2875 transitions. [2023-11-26 10:41:35,688 INFO L78 Accepts]: Start accepts. Automaton has 1801 states and 2875 transitions. Word has length 162 [2023-11-26 10:41:35,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:41:35,689 INFO L495 AbstractCegarLoop]: Abstraction has 1801 states and 2875 transitions. [2023-11-26 10:41:35,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.636363636363637) internal successors, (128), 7 states have internal predecessors, (128), 2 states have call successors, (50), 6 states have call predecessors, (50), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-11-26 10:41:35,689 INFO L276 IsEmpty]: Start isEmpty. Operand 1801 states and 2875 transitions. [2023-11-26 10:41:35,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2023-11-26 10:41:35,701 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:41:35,701 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:41:35,709 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08145a7b-61e4-45fd-8c13-25850395ddc5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-26 10:41:35,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08145a7b-61e4-45fd-8c13-25850395ddc5/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-26 10:41:35,910 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:41:35,910 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:35,910 INFO L85 PathProgramCache]: Analyzing trace with hash 746873936, now seen corresponding path program 1 times [2023-11-26 10:41:35,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:35,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671619141] [2023-11-26 10:41:35,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:35,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:35,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:36,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:41:36,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:36,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-26 10:41:36,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:36,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 10:41:36,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:36,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-26 10:41:36,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:36,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-26 10:41:36,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:36,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-26 10:41:36,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:36,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-26 10:41:36,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:36,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-26 10:41:36,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:36,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-26 10:41:36,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:36,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:41:36,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:36,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-26 10:41:36,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:36,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:41:36,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:36,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-26 10:41:36,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:36,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:41:36,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:36,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-26 10:41:36,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:36,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-26 10:41:36,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:36,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-11-26 10:41:36,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:36,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-11-26 10:41:36,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:36,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-26 10:41:36,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:36,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 10:41:36,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:36,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-26 10:41:36,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:36,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-11-26 10:41:36,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:36,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 10:41:36,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:36,103 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2023-11-26 10:41:36,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:36,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671619141] [2023-11-26 10:41:36,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671619141] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:36,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:41:36,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 10:41:36,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239809638] [2023-11-26 10:41:36,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:36,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 10:41:36,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:36,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 10:41:36,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-26 10:41:36,106 INFO L87 Difference]: Start difference. First operand 1801 states and 2875 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-26 10:41:39,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:41:39,294 INFO L93 Difference]: Finished difference Result 4310 states and 7169 transitions. [2023-11-26 10:41:39,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-26 10:41:39,295 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 167 [2023-11-26 10:41:39,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:41:39,316 INFO L225 Difference]: With dead ends: 4310 [2023-11-26 10:41:39,317 INFO L226 Difference]: Without dead ends: 2700 [2023-11-26 10:41:39,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2023-11-26 10:41:39,323 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 1524 mSDsluCounter, 1019 mSDsCounter, 0 mSdLazyCounter, 2089 mSolverCounterSat, 664 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1550 SdHoareTripleChecker+Valid, 1313 SdHoareTripleChecker+Invalid, 2753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 664 IncrementalHoareTripleChecker+Valid, 2089 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-11-26 10:41:39,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1550 Valid, 1313 Invalid, 2753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [664 Valid, 2089 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-11-26 10:41:39,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2700 states. [2023-11-26 10:41:39,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2700 to 2327. [2023-11-26 10:41:39,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2327 states, 1844 states have (on average 1.61117136659436) internal successors, (2971), 1907 states have internal predecessors, (2971), 386 states have call successors, (386), 86 states have call predecessors, (386), 96 states have return successors, (416), 389 states have call predecessors, (416), 384 states have call successors, (416) [2023-11-26 10:41:39,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2327 states to 2327 states and 3773 transitions. [2023-11-26 10:41:39,513 INFO L78 Accepts]: Start accepts. Automaton has 2327 states and 3773 transitions. Word has length 167 [2023-11-26 10:41:39,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:41:39,514 INFO L495 AbstractCegarLoop]: Abstraction has 2327 states and 3773 transitions. [2023-11-26 10:41:39,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-26 10:41:39,515 INFO L276 IsEmpty]: Start isEmpty. Operand 2327 states and 3773 transitions. [2023-11-26 10:41:39,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-11-26 10:41:39,529 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:41:39,530 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:41:39,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-26 10:41:39,530 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:41:39,530 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:39,531 INFO L85 PathProgramCache]: Analyzing trace with hash -212468772, now seen corresponding path program 1 times [2023-11-26 10:41:39,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:39,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755077001] [2023-11-26 10:41:39,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:39,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:39,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:39,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:41:39,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:39,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-26 10:41:39,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:39,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 10:41:39,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:39,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-26 10:41:39,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:39,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-26 10:41:39,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:39,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-26 10:41:39,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:39,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-26 10:41:39,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:39,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-26 10:41:39,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:39,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-26 10:41:39,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:39,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:41:39,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:39,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-26 10:41:39,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:39,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:41:39,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:39,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-26 10:41:39,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:39,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:41:39,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:39,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-26 10:41:39,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:39,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-26 10:41:39,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:39,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-26 10:41:39,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:39,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-26 10:41:39,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:39,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-11-26 10:41:39,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:39,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 10:41:39,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:39,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-11-26 10:41:39,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:39,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-11-26 10:41:39,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:39,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 10:41:39,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:39,728 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2023-11-26 10:41:39,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:39,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755077001] [2023-11-26 10:41:39,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755077001] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:39,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:41:39,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 10:41:39,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520496229] [2023-11-26 10:41:39,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:39,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 10:41:39,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:39,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 10:41:39,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-26 10:41:39,733 INFO L87 Difference]: Start difference. First operand 2327 states and 3773 transitions. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-26 10:41:43,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:41:43,043 INFO L93 Difference]: Finished difference Result 5774 states and 9689 transitions. [2023-11-26 10:41:43,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-26 10:41:43,044 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 168 [2023-11-26 10:41:43,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:41:43,075 INFO L225 Difference]: With dead ends: 5774 [2023-11-26 10:41:43,075 INFO L226 Difference]: Without dead ends: 3676 [2023-11-26 10:41:43,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2023-11-26 10:41:43,084 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 1513 mSDsluCounter, 1052 mSDsCounter, 0 mSdLazyCounter, 2146 mSolverCounterSat, 657 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1538 SdHoareTripleChecker+Valid, 1346 SdHoareTripleChecker+Invalid, 2803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 657 IncrementalHoareTripleChecker+Valid, 2146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-11-26 10:41:43,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1538 Valid, 1346 Invalid, 2803 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [657 Valid, 2146 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-11-26 10:41:43,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3676 states. [2023-11-26 10:41:43,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3676 to 3303. [2023-11-26 10:41:43,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3303 states, 2662 states have (on average 1.6277235161532682) internal successors, (4333), 2745 states have internal predecessors, (4333), 544 states have call successors, (544), 86 states have call predecessors, (544), 96 states have return successors, (574), 547 states have call predecessors, (574), 542 states have call successors, (574) [2023-11-26 10:41:43,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3303 states to 3303 states and 5451 transitions. [2023-11-26 10:41:43,370 INFO L78 Accepts]: Start accepts. Automaton has 3303 states and 5451 transitions. Word has length 168 [2023-11-26 10:41:43,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:41:43,371 INFO L495 AbstractCegarLoop]: Abstraction has 3303 states and 5451 transitions. [2023-11-26 10:41:43,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-26 10:41:43,371 INFO L276 IsEmpty]: Start isEmpty. Operand 3303 states and 5451 transitions. [2023-11-26 10:41:43,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-11-26 10:41:43,390 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:41:43,390 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:41:43,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-26 10:41:43,391 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:41:43,391 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:43,391 INFO L85 PathProgramCache]: Analyzing trace with hash -859085882, now seen corresponding path program 1 times [2023-11-26 10:41:43,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:43,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246925346] [2023-11-26 10:41:43,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:43,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:43,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:43,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:41:43,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:43,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-26 10:41:43,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:43,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 10:41:43,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:43,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-26 10:41:43,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:43,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-26 10:41:43,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:43,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-26 10:41:43,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:43,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-26 10:41:43,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:43,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-26 10:41:43,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:43,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-26 10:41:43,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:43,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:41:43,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:43,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-26 10:41:43,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:43,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:41:43,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:43,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-26 10:41:43,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:43,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:41:43,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:43,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-26 10:41:43,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:43,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-26 10:41:43,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:43,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-11-26 10:41:43,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:43,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-11-26 10:41:43,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:43,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-11-26 10:41:43,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:43,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 10:41:43,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:43,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-11-26 10:41:43,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:43,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-11-26 10:41:43,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:43,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 10:41:43,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:43,602 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2023-11-26 10:41:43,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:43,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246925346] [2023-11-26 10:41:43,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246925346] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:43,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:41:43,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 10:41:43,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224474325] [2023-11-26 10:41:43,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:43,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 10:41:43,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:43,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 10:41:43,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-26 10:41:43,606 INFO L87 Difference]: Start difference. First operand 3303 states and 5451 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, (30), 6 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-26 10:41:46,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:41:46,686 INFO L93 Difference]: Finished difference Result 8196 states and 13867 transitions. [2023-11-26 10:41:46,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-26 10:41:46,686 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, (30), 6 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 169 [2023-11-26 10:41:46,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:41:46,727 INFO L225 Difference]: With dead ends: 8196 [2023-11-26 10:41:46,727 INFO L226 Difference]: Without dead ends: 5242 [2023-11-26 10:41:46,738 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2023-11-26 10:41:46,739 INFO L413 NwaCegarLoop]: 290 mSDtfsCounter, 1519 mSDsluCounter, 1051 mSDsCounter, 0 mSdLazyCounter, 2103 mSolverCounterSat, 671 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1544 SdHoareTripleChecker+Valid, 1341 SdHoareTripleChecker+Invalid, 2774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 671 IncrementalHoareTripleChecker+Valid, 2103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-26 10:41:46,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1544 Valid, 1341 Invalid, 2774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [671 Valid, 2103 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-11-26 10:41:46,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5242 states. [2023-11-26 10:41:47,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5242 to 4869. [2023-11-26 10:41:47,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4869 states, 3990 states have (on average 1.6408521303258146) internal successors, (6547), 4105 states have internal predecessors, (6547), 782 states have call successors, (782), 86 states have call predecessors, (782), 96 states have return successors, (812), 785 states have call predecessors, (812), 780 states have call successors, (812) [2023-11-26 10:41:47,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4869 states to 4869 states and 8141 transitions. [2023-11-26 10:41:47,125 INFO L78 Accepts]: Start accepts. Automaton has 4869 states and 8141 transitions. Word has length 169 [2023-11-26 10:41:47,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:41:47,125 INFO L495 AbstractCegarLoop]: Abstraction has 4869 states and 8141 transitions. [2023-11-26 10:41:47,126 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, (30), 6 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-26 10:41:47,126 INFO L276 IsEmpty]: Start isEmpty. Operand 4869 states and 8141 transitions. [2023-11-26 10:41:47,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-11-26 10:41:47,153 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:41:47,154 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:41:47,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-26 10:41:47,154 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:41:47,155 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:47,155 INFO L85 PathProgramCache]: Analyzing trace with hash -31596843, now seen corresponding path program 1 times [2023-11-26 10:41:47,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:47,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013891965] [2023-11-26 10:41:47,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:47,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:47,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:47,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:41:47,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:47,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-26 10:41:47,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:47,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 10:41:47,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:47,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-26 10:41:47,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:47,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-26 10:41:47,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:47,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-26 10:41:47,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:47,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-26 10:41:47,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:47,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-26 10:41:47,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:47,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-26 10:41:47,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:47,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:41:47,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:47,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-26 10:41:47,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:47,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:41:47,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:47,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-26 10:41:47,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:47,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 10:41:47,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:47,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-26 10:41:47,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:47,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-26 10:41:47,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:47,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-26 10:41:47,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:47,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-26 10:41:47,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:47,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-11-26 10:41:47,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:47,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 10:41:47,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:47,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-11-26 10:41:47,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:47,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-11-26 10:41:47,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:47,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 10:41:47,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:47,347 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2023-11-26 10:41:47,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:47,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013891965] [2023-11-26 10:41:47,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013891965] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:47,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:41:47,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 10:41:47,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137914347] [2023-11-26 10:41:47,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:47,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 10:41:47,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:47,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 10:41:47,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-26 10:41:47,351 INFO L87 Difference]: Start difference. First operand 4869 states and 8141 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, (30), 6 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23)