./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec0_product09.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f6dcce-db19-4822-906a-0be7f0db146b/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f6dcce-db19-4822-906a-0be7f0db146b/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_49f6dcce-db19-4822-906a-0be7f0db146b/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f6dcce-db19-4822-906a-0be7f0db146b/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec0_product09.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f6dcce-db19-4822-906a-0be7f0db146b/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_49f6dcce-db19-4822-906a-0be7f0db146b/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 3b43506942a12950209750f07d771d1d388e9661c8c19f0364d898e10e246352 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:49:15,788 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:49:15,873 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f6dcce-db19-4822-906a-0be7f0db146b/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-26 11:49:15,880 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:49:15,881 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:49:15,914 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:49:15,915 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:49:15,916 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:49:15,917 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:49:15,918 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:49:15,918 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:49:15,919 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:49:15,920 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:49:15,921 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:49:15,921 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:49:15,922 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:49:15,923 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:49:15,924 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:49:15,924 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:49:15,925 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:49:15,926 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:49:15,927 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:49:15,927 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:49:15,928 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:49:15,929 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:49:15,929 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:49:15,930 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:49:15,931 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:49:15,931 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:49:15,932 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:49:15,932 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:49:15,933 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:49:15,934 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:49:15,934 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:49:15,935 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:49:15,935 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:49:15,936 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:49:15,936 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:49:15,937 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:49:15,937 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:49:15,938 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:49:15,938 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:49:15,939 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_49f6dcce-db19-4822-906a-0be7f0db146b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f6dcce-db19-4822-906a-0be7f0db146b/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b43506942a12950209750f07d771d1d388e9661c8c19f0364d898e10e246352 [2023-11-26 11:49:16,224 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:49:16,265 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:49:16,268 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:49:16,270 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:49:16,270 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:49:16,272 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f6dcce-db19-4822-906a-0be7f0db146b/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/product-lines/email_spec0_product09.cil.c [2023-11-26 11:49:19,596 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:49:19,984 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:49:19,986 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f6dcce-db19-4822-906a-0be7f0db146b/sv-benchmarks/c/product-lines/email_spec0_product09.cil.c [2023-11-26 11:49:20,012 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f6dcce-db19-4822-906a-0be7f0db146b/bin/uautomizer-verify-VRDe98Ueme/data/2f6f0dfc7/7728a1760d2f4c08bbd17cbe7821721c/FLAG444d54e4d [2023-11-26 11:49:20,029 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f6dcce-db19-4822-906a-0be7f0db146b/bin/uautomizer-verify-VRDe98Ueme/data/2f6f0dfc7/7728a1760d2f4c08bbd17cbe7821721c [2023-11-26 11:49:20,032 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:49:20,034 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:49:20,035 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:49:20,036 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:49:20,042 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:49:20,042 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:49:20" (1/1) ... [2023-11-26 11:49:20,044 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11aefb3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:20, skipping insertion in model container [2023-11-26 11:49:20,044 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:49:20" (1/1) ... [2023-11-26 11:49:20,116 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:49:20,827 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_49f6dcce-db19-4822-906a-0be7f0db146b/sv-benchmarks/c/product-lines/email_spec0_product09.cil.c[57372,57385] [2023-11-26 11:49:20,833 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:49:20,872 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:49:20,883 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [48] [2023-11-26 11:49:20,885 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [246] [2023-11-26 11:49:20,886 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [295] [2023-11-26 11:49:20,886 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [448] [2023-11-26 11:49:20,887 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [860] [2023-11-26 11:49:20,888 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1226] [2023-11-26 11:49:20,888 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2301] [2023-11-26 11:49:20,888 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2503] [2023-11-26 11:49:20,889 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2567] [2023-11-26 11:49:20,889 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2584] [2023-11-26 11:49:20,889 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptForward_spec.i","") [2593] [2023-11-26 11:49:21,002 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_49f6dcce-db19-4822-906a-0be7f0db146b/sv-benchmarks/c/product-lines/email_spec0_product09.cil.c[57372,57385] [2023-11-26 11:49:21,004 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:49:21,029 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:49:21,037 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:49:21,038 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:21 WrapperNode [2023-11-26 11:49:21,038 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:49:21,040 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:49:21,040 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:49:21,041 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:49:21,049 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:21" (1/1) ... [2023-11-26 11:49:21,105 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:21" (1/1) ... [2023-11-26 11:49:21,177 INFO L138 Inliner]: procedures = 110, calls = 144, calls flagged for inlining = 38, calls inlined = 33, statements flattened = 683 [2023-11-26 11:49:21,178 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:49:21,178 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:49:21,179 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:49:21,179 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:49:21,207 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:21" (1/1) ... [2023-11-26 11:49:21,208 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:21" (1/1) ... [2023-11-26 11:49:21,222 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:21" (1/1) ... [2023-11-26 11:49:21,265 INFO L175 MemorySlicer]: Split 6 memory accesses to 2 slices as follows [2, 4]. 67 percent of accesses are in the largest equivalence class. The 6 initializations are split as follows [2, 4]. The 0 writes are split as follows [0, 0]. [2023-11-26 11:49:21,266 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:21" (1/1) ... [2023-11-26 11:49:21,266 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:21" (1/1) ... [2023-11-26 11:49:21,302 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:21" (1/1) ... [2023-11-26 11:49:21,309 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:21" (1/1) ... [2023-11-26 11:49:21,313 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:21" (1/1) ... [2023-11-26 11:49:21,317 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:21" (1/1) ... [2023-11-26 11:49:21,324 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:49:21,325 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:49:21,325 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:49:21,325 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:49:21,326 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:21" (1/1) ... [2023-11-26 11:49:21,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:49:21,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f6dcce-db19-4822-906a-0be7f0db146b/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:49:21,364 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f6dcce-db19-4822-906a-0be7f0db146b/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:49:21,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f6dcce-db19-4822-906a-0be7f0db146b/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:49:21,424 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Base [2023-11-26 11:49:21,424 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Base [2023-11-26 11:49:21,424 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-11-26 11:49:21,424 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-11-26 11:49:21,424 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-11-26 11:49:21,425 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-11-26 11:49:21,425 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-11-26 11:49:21,425 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-11-26 11:49:21,425 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-11-26 11:49:21,425 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-11-26 11:49:21,425 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-11-26 11:49:21,426 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-11-26 11:49:21,426 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-11-26 11:49:21,426 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-11-26 11:49:21,426 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-11-26 11:49:21,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:49:21,426 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-11-26 11:49:21,426 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-11-26 11:49:21,427 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-11-26 11:49:21,427 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-11-26 11:49:21,427 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-11-26 11:49:21,427 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-11-26 11:49:21,427 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-11-26 11:49:21,427 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-11-26 11:49:21,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 11:49:21,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-26 11:49:21,428 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-11-26 11:49:21,428 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-11-26 11:49:21,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:49:21,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:49:21,621 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:49:21,624 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:49:22,460 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:49:22,574 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:49:22,575 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 11:49:22,576 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:49:22 BoogieIcfgContainer [2023-11-26 11:49:22,576 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:49:22,579 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:49:22,580 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:49:22,583 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:49:22,583 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:49:20" (1/3) ... [2023-11-26 11:49:22,585 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@564e2853 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:49:22, skipping insertion in model container [2023-11-26 11:49:22,585 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:21" (2/3) ... [2023-11-26 11:49:22,587 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@564e2853 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:49:22, skipping insertion in model container [2023-11-26 11:49:22,588 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:49:22" (3/3) ... [2023-11-26 11:49:22,589 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec0_product09.cil.c [2023-11-26 11:49:22,611 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:49:22,611 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 11:49:22,684 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:49:22,689 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;@60495e05, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:49:22,690 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 11:49:22,696 INFO L276 IsEmpty]: Start isEmpty. Operand has 185 states, 145 states have (on average 1.6551724137931034) internal successors, (240), 148 states have internal predecessors, (240), 26 states have call successors, (26), 12 states have call predecessors, (26), 12 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-26 11:49:22,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-26 11:49:22,712 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:49:22,713 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:49:22,714 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:49:22,720 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:49:22,720 INFO L85 PathProgramCache]: Analyzing trace with hash -1450564991, now seen corresponding path program 1 times [2023-11-26 11:49:22,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:49:22,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544053499] [2023-11-26 11:49:22,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:22,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:49:22,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:23,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:49:23,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:23,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 11:49:23,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:23,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-26 11:49:23,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:23,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-26 11:49:23,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:23,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-26 11:49:23,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:23,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-26 11:49:23,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:23,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-26 11:49:23,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:23,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-26 11:49:23,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:23,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-26 11:49:23,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:23,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-26 11:49:23,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:23,517 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-26 11:49:23,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:49:23,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544053499] [2023-11-26 11:49:23,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544053499] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:49:23,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1724791199] [2023-11-26 11:49:23,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:23,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:49:23,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f6dcce-db19-4822-906a-0be7f0db146b/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:49:23,524 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f6dcce-db19-4822-906a-0be7f0db146b/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:49:23,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f6dcce-db19-4822-906a-0be7f0db146b/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 11:49:23,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:23,884 INFO L262 TraceCheckSpWp]: Trace formula consists of 843 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-26 11:49:23,898 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:49:23,942 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-26 11:49:23,943 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:49:23,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1724791199] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:49:23,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:49:23,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [8] total 8 [2023-11-26 11:49:23,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091786321] [2023-11-26 11:49:23,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:49:23,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 11:49:23,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:49:23,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 11:49:23,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-26 11:49:23,988 INFO L87 Difference]: Start difference. First operand has 185 states, 145 states have (on average 1.6551724137931034) internal successors, (240), 148 states have internal predecessors, (240), 26 states have call successors, (26), 12 states have call predecessors, (26), 12 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-26 11:49:24,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:49:24,079 INFO L93 Difference]: Finished difference Result 289 states and 447 transitions. [2023-11-26 11:49:24,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 11:49:24,081 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 75 [2023-11-26 11:49:24,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:49:24,094 INFO L225 Difference]: With dead ends: 289 [2023-11-26 11:49:24,095 INFO L226 Difference]: Without dead ends: 182 [2023-11-26 11:49:24,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-26 11:49:24,103 INFO L413 NwaCegarLoop]: 275 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:49:24,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 275 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:49:24,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2023-11-26 11:49:24,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2023-11-26 11:49:24,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 143 states have (on average 1.6293706293706294) internal successors, (233), 145 states have internal predecessors, (233), 26 states have call successors, (26), 12 states have call predecessors, (26), 12 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-26 11:49:24,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 284 transitions. [2023-11-26 11:49:24,190 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 284 transitions. Word has length 75 [2023-11-26 11:49:24,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:49:24,191 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 284 transitions. [2023-11-26 11:49:24,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-26 11:49:24,192 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 284 transitions. [2023-11-26 11:49:24,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-26 11:49:24,206 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:49:24,206 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:49:24,213 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f6dcce-db19-4822-906a-0be7f0db146b/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-26 11:49:24,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f6dcce-db19-4822-906a-0be7f0db146b/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-26 11:49:24,409 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:49:24,409 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:49:24,409 INFO L85 PathProgramCache]: Analyzing trace with hash 887563800, now seen corresponding path program 1 times [2023-11-26 11:49:24,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:49:24,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222369731] [2023-11-26 11:49:24,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:24,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:49:24,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:24,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:49:24,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:24,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 11:49:24,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:24,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-26 11:49:24,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:24,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-26 11:49:24,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:24,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-26 11:49:24,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:24,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-26 11:49:24,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:24,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-26 11:49:24,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:24,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-26 11:49:24,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:24,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-26 11:49:24,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:24,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-26 11:49:24,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:24,659 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-26 11:49:24,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:49:24,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222369731] [2023-11-26 11:49:24,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222369731] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:49:24,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [983371511] [2023-11-26 11:49:24,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:24,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:49:24,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f6dcce-db19-4822-906a-0be7f0db146b/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:49:24,662 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f6dcce-db19-4822-906a-0be7f0db146b/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:49:24,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f6dcce-db19-4822-906a-0be7f0db146b/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-26 11:49:24,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:24,979 INFO L262 TraceCheckSpWp]: Trace formula consists of 844 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 11:49:24,986 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:49:25,033 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-26 11:49:25,036 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:49:25,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [983371511] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:49:25,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:49:25,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2023-11-26 11:49:25,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346201935] [2023-11-26 11:49:25,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:49:25,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:49:25,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:49:25,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:49:25,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-26 11:49:25,042 INFO L87 Difference]: Start difference. First operand 182 states and 284 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-26 11:49:25,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:49:25,133 INFO L93 Difference]: Finished difference Result 285 states and 431 transitions. [2023-11-26 11:49:25,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:49:25,134 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 76 [2023-11-26 11:49:25,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:49:25,137 INFO L225 Difference]: With dead ends: 285 [2023-11-26 11:49:25,137 INFO L226 Difference]: Without dead ends: 184 [2023-11-26 11:49:25,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-26 11:49:25,141 INFO L413 NwaCegarLoop]: 272 mSDtfsCounter, 0 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:49:25,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 543 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:49:25,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2023-11-26 11:49:25,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2023-11-26 11:49:25,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 145 states have (on average 1.6206896551724137) internal successors, (235), 147 states have internal predecessors, (235), 26 states have call successors, (26), 12 states have call predecessors, (26), 12 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-26 11:49:25,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 286 transitions. [2023-11-26 11:49:25,167 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 286 transitions. Word has length 76 [2023-11-26 11:49:25,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:49:25,168 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 286 transitions. [2023-11-26 11:49:25,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-26 11:49:25,173 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 286 transitions. [2023-11-26 11:49:25,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-26 11:49:25,184 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:49:25,184 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:49:25,198 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f6dcce-db19-4822-906a-0be7f0db146b/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-26 11:49:25,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f6dcce-db19-4822-906a-0be7f0db146b/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:49:25,392 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:49:25,393 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:49:25,393 INFO L85 PathProgramCache]: Analyzing trace with hash -175926311, now seen corresponding path program 1 times [2023-11-26 11:49:25,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:49:25,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470533509] [2023-11-26 11:49:25,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:25,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:49:25,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:25,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:49:25,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:25,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 11:49:25,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:25,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-26 11:49:25,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:25,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-26 11:49:25,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:25,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-26 11:49:25,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:25,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-26 11:49:25,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:25,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-26 11:49:25,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:25,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-26 11:49:25,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:25,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-26 11:49:25,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:25,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-26 11:49:25,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:25,709 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-26 11:49:25,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:49:25,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470533509] [2023-11-26 11:49:25,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470533509] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:49:25,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1538042833] [2023-11-26 11:49:25,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:25,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:49:25,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f6dcce-db19-4822-906a-0be7f0db146b/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:49:25,714 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f6dcce-db19-4822-906a-0be7f0db146b/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:49:25,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f6dcce-db19-4822-906a-0be7f0db146b/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-26 11:49:25,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:25,995 INFO L262 TraceCheckSpWp]: Trace formula consists of 855 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 11:49:26,001 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:49:26,070 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-26 11:49:26,071 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:49:26,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1538042833] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:49:26,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:49:26,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2023-11-26 11:49:26,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240760482] [2023-11-26 11:49:26,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:49:26,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:49:26,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:49:26,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:49:26,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-11-26 11:49:26,075 INFO L87 Difference]: Start difference. First operand 184 states and 286 transitions. Second operand has 5 states, 4 states have (on average 12.5) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-26 11:49:26,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:49:26,213 INFO L93 Difference]: Finished difference Result 365 states and 569 transitions. [2023-11-26 11:49:26,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 11:49:26,218 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 12.5) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 80 [2023-11-26 11:49:26,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:49:26,223 INFO L225 Difference]: With dead ends: 365 [2023-11-26 11:49:26,223 INFO L226 Difference]: Without dead ends: 186 [2023-11-26 11:49:26,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-11-26 11:49:26,229 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 8 mSDsluCounter, 778 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1041 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:49:26,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1041 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:49:26,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2023-11-26 11:49:26,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 186. [2023-11-26 11:49:26,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 146 states have (on average 1.6164383561643836) internal successors, (236), 149 states have internal predecessors, (236), 26 states have call successors, (26), 12 states have call predecessors, (26), 13 states have return successors, (27), 24 states have call predecessors, (27), 25 states have call successors, (27) [2023-11-26 11:49:26,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 289 transitions. [2023-11-26 11:49:26,264 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 289 transitions. Word has length 80 [2023-11-26 11:49:26,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:49:26,266 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 289 transitions. [2023-11-26 11:49:26,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 12.5) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-26 11:49:26,266 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 289 transitions. [2023-11-26 11:49:26,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-26 11:49:26,269 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:49:26,269 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:49:26,282 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f6dcce-db19-4822-906a-0be7f0db146b/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-26 11:49:26,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f6dcce-db19-4822-906a-0be7f0db146b/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:49:26,483 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:49:26,483 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:49:26,483 INFO L85 PathProgramCache]: Analyzing trace with hash -615471499, now seen corresponding path program 1 times [2023-11-26 11:49:26,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:49:26,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785688677] [2023-11-26 11:49:26,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:26,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:49:26,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:26,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:49:26,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:26,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 11:49:26,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:26,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-26 11:49:26,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:26,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-26 11:49:26,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:26,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-26 11:49:26,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:26,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-26 11:49:26,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:26,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-26 11:49:26,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:26,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-26 11:49:26,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:26,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-26 11:49:26,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:26,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-26 11:49:26,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:26,685 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-26 11:49:26,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:49:26,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785688677] [2023-11-26 11:49:26,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785688677] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:49:26,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:49:26,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-26 11:49:26,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977488047] [2023-11-26 11:49:26,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:49:26,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 11:49:26,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:49:26,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 11:49:26,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-26 11:49:26,688 INFO L87 Difference]: Start difference. First operand 186 states and 289 transitions. Second operand has 8 states, 7 states have (on average 7.0) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-26 11:49:28,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:49:28,266 INFO L93 Difference]: Finished difference Result 461 states and 740 transitions. [2023-11-26 11:49:28,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-26 11:49:28,267 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 81 [2023-11-26 11:49:28,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:49:28,272 INFO L225 Difference]: With dead ends: 461 [2023-11-26 11:49:28,273 INFO L226 Difference]: Without dead ends: 290 [2023-11-26 11:49:28,274 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2023-11-26 11:49:28,278 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 449 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 1492 mSolverCounterSat, 149 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 459 SdHoareTripleChecker+Valid, 612 SdHoareTripleChecker+Invalid, 1641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 1492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-26 11:49:28,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [459 Valid, 612 Invalid, 1641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [149 Valid, 1492 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-26 11:49:28,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2023-11-26 11:49:28,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 186. [2023-11-26 11:49:28,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 146 states have (on average 1.6164383561643836) internal successors, (236), 149 states have internal predecessors, (236), 26 states have call successors, (26), 12 states have call predecessors, (26), 13 states have return successors, (26), 24 states have call predecessors, (26), 25 states have call successors, (26) [2023-11-26 11:49:28,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 288 transitions. [2023-11-26 11:49:28,349 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 288 transitions. Word has length 81 [2023-11-26 11:49:28,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:49:28,350 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 288 transitions. [2023-11-26 11:49:28,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-26 11:49:28,351 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 288 transitions. [2023-11-26 11:49:28,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-26 11:49:28,353 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:49:28,353 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:49:28,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 11:49:28,353 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:49:28,354 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:49:28,354 INFO L85 PathProgramCache]: Analyzing trace with hash -668112235, now seen corresponding path program 2 times [2023-11-26 11:49:28,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:49:28,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394541890] [2023-11-26 11:49:28,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:28,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:49:28,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:28,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:49:28,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:28,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 11:49:28,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:28,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-26 11:49:28,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:28,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-26 11:49:28,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:28,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-26 11:49:28,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:28,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-26 11:49:28,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:28,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-26 11:49:28,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:28,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-26 11:49:28,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:28,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-26 11:49:28,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:28,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-26 11:49:28,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:28,611 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-26 11:49:28,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:49:28,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394541890] [2023-11-26 11:49:28,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394541890] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:49:28,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:49:28,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-26 11:49:28,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296273489] [2023-11-26 11:49:28,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:49:28,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 11:49:28,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:49:28,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 11:49:28,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-26 11:49:28,616 INFO L87 Difference]: Start difference. First operand 186 states and 288 transitions. Second operand has 8 states, 7 states have (on average 7.142857142857143) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-26 11:49:30,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:49:30,198 INFO L93 Difference]: Finished difference Result 463 states and 743 transitions. [2023-11-26 11:49:30,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-26 11:49:30,199 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.142857142857143) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 82 [2023-11-26 11:49:30,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:49:30,202 INFO L225 Difference]: With dead ends: 463 [2023-11-26 11:49:30,203 INFO L226 Difference]: Without dead ends: 292 [2023-11-26 11:49:30,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2023-11-26 11:49:30,205 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 443 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 1563 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 1703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 1563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-26 11:49:30,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [453 Valid, 613 Invalid, 1703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 1563 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-26 11:49:30,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2023-11-26 11:49:30,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 188. [2023-11-26 11:49:30,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 147 states have (on average 1.6122448979591837) internal successors, (237), 151 states have internal predecessors, (237), 26 states have call successors, (26), 12 states have call predecessors, (26), 14 states have return successors, (28), 24 states have call predecessors, (28), 25 states have call successors, (28) [2023-11-26 11:49:30,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 291 transitions. [2023-11-26 11:49:30,245 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 291 transitions. Word has length 82 [2023-11-26 11:49:30,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:49:30,245 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 291 transitions. [2023-11-26 11:49:30,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.142857142857143) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-26 11:49:30,246 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 291 transitions. [2023-11-26 11:49:30,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-11-26 11:49:30,248 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:49:30,248 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:49:30,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 11:49:30,249 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:49:30,249 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:49:30,249 INFO L85 PathProgramCache]: Analyzing trace with hash -288473648, now seen corresponding path program 1 times [2023-11-26 11:49:30,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:49:30,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140007369] [2023-11-26 11:49:30,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:30,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:49:30,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:30,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:49:30,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:30,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 11:49:30,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:30,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-26 11:49:30,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:30,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-26 11:49:30,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:30,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-26 11:49:30,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:30,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-26 11:49:30,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:30,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-26 11:49:30,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:30,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-26 11:49:30,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:30,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-26 11:49:30,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:30,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-26 11:49:30,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:30,407 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-11-26 11:49:30,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:49:30,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140007369] [2023-11-26 11:49:30,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140007369] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:49:30,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1611028108] [2023-11-26 11:49:30,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:30,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:49:30,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f6dcce-db19-4822-906a-0be7f0db146b/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:49:30,410 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f6dcce-db19-4822-906a-0be7f0db146b/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:49:30,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f6dcce-db19-4822-906a-0be7f0db146b/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-26 11:49:30,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:30,684 INFO L262 TraceCheckSpWp]: Trace formula consists of 858 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 11:49:30,688 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:49:30,714 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-11-26 11:49:30,714 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:49:30,781 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-11-26 11:49:30,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1611028108] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:49:30,782 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:49:30,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 10 [2023-11-26 11:49:30,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885141898] [2023-11-26 11:49:30,783 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:49:30,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-26 11:49:30,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:49:30,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-26 11:49:30,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-26 11:49:30,785 INFO L87 Difference]: Start difference. First operand 188 states and 291 transitions. Second operand has 10 states, 10 states have (on average 7.5) internal successors, (75), 7 states have internal predecessors, (75), 2 states have call successors, (27), 5 states have call predecessors, (27), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-26 11:49:32,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:49:32,184 INFO L93 Difference]: Finished difference Result 546 states and 906 transitions. [2023-11-26 11:49:32,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-26 11:49:32,185 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.5) internal successors, (75), 7 states have internal predecessors, (75), 2 states have call successors, (27), 5 states have call predecessors, (27), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 83 [2023-11-26 11:49:32,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:49:32,189 INFO L225 Difference]: With dead ends: 546 [2023-11-26 11:49:32,189 INFO L226 Difference]: Without dead ends: 445 [2023-11-26 11:49:32,190 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2023-11-26 11:49:32,190 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 754 mSDsluCounter, 603 mSDsCounter, 0 mSdLazyCounter, 1569 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 778 SdHoareTripleChecker+Valid, 710 SdHoareTripleChecker+Invalid, 1747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 1569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-26 11:49:32,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [778 Valid, 710 Invalid, 1747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 1569 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-26 11:49:32,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2023-11-26 11:49:32,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 326. [2023-11-26 11:49:32,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 276 states have (on average 1.7282608695652173) internal successors, (477), 280 states have internal predecessors, (477), 35 states have call successors, (35), 12 states have call predecessors, (35), 14 states have return successors, (37), 33 states have call predecessors, (37), 34 states have call successors, (37) [2023-11-26 11:49:32,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 549 transitions. [2023-11-26 11:49:32,218 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 549 transitions. Word has length 83 [2023-11-26 11:49:32,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:49:32,218 INFO L495 AbstractCegarLoop]: Abstraction has 326 states and 549 transitions. [2023-11-26 11:49:32,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.5) internal successors, (75), 7 states have internal predecessors, (75), 2 states have call successors, (27), 5 states have call predecessors, (27), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-26 11:49:32,219 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 549 transitions. [2023-11-26 11:49:32,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-11-26 11:49:32,221 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:49:32,221 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:49:32,228 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f6dcce-db19-4822-906a-0be7f0db146b/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-26 11:49:32,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f6dcce-db19-4822-906a-0be7f0db146b/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-26 11:49:32,428 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:49:32,428 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:49:32,428 INFO L85 PathProgramCache]: Analyzing trace with hash 107775441, now seen corresponding path program 1 times [2023-11-26 11:49:32,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:49:32,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129218591] [2023-11-26 11:49:32,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:32,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:49:32,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:32,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:49:32,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:32,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 11:49:32,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:32,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-26 11:49:32,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:32,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-26 11:49:32,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:32,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-26 11:49:32,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:32,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-26 11:49:32,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:32,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-26 11:49:32,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:32,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-26 11:49:32,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:32,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-26 11:49:32,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:32,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-26 11:49:32,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:32,542 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-11-26 11:49:32,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:49:32,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129218591] [2023-11-26 11:49:32,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129218591] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:49:32,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:49:32,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-26 11:49:32,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71124629] [2023-11-26 11:49:32,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:49:32,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:49:32,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:49:32,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:49:32,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:49:32,545 INFO L87 Difference]: Start difference. First operand 326 states and 549 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-26 11:49:33,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:49:33,646 INFO L93 Difference]: Finished difference Result 876 states and 1515 transitions. [2023-11-26 11:49:33,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-26 11:49:33,647 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 90 [2023-11-26 11:49:33,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:49:33,653 INFO L225 Difference]: With dead ends: 876 [2023-11-26 11:49:33,653 INFO L226 Difference]: Without dead ends: 572 [2023-11-26 11:49:33,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-26 11:49:33,661 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 518 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 907 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 533 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 1059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 907 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-26 11:49:33,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [533 Valid, 446 Invalid, 1059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 907 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-26 11:49:33,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2023-11-26 11:49:33,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 463. [2023-11-26 11:49:33,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 404 states have (on average 1.7574257425742574) internal successors, (710), 408 states have internal predecessors, (710), 44 states have call successors, (44), 12 states have call predecessors, (44), 14 states have return successors, (46), 42 states have call predecessors, (46), 43 states have call successors, (46) [2023-11-26 11:49:33,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 800 transitions. [2023-11-26 11:49:33,705 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 800 transitions. Word has length 90 [2023-11-26 11:49:33,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:49:33,708 INFO L495 AbstractCegarLoop]: Abstraction has 463 states and 800 transitions. [2023-11-26 11:49:33,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-26 11:49:33,708 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 800 transitions. [2023-11-26 11:49:33,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-26 11:49:33,711 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:49:33,711 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:49:33,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 11:49:33,712 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:49:33,712 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:49:33,712 INFO L85 PathProgramCache]: Analyzing trace with hash 973981928, now seen corresponding path program 1 times [2023-11-26 11:49:33,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:49:33,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992321813] [2023-11-26 11:49:33,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:33,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:49:33,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:33,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:49:33,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:33,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 11:49:33,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:33,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-26 11:49:33,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:33,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-26 11:49:33,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:33,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-26 11:49:33,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:33,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-26 11:49:33,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:33,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-26 11:49:33,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:33,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-26 11:49:33,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:33,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-26 11:49:33,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:33,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-26 11:49:33,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:33,834 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-11-26 11:49:33,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:49:33,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992321813] [2023-11-26 11:49:33,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992321813] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:49:33,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:49:33,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-26 11:49:33,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052936320] [2023-11-26 11:49:33,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:49:33,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:49:33,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:49:33,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:49:33,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:49:33,837 INFO L87 Difference]: Start difference. First operand 463 states and 800 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-26 11:49:34,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:49:34,908 INFO L93 Difference]: Finished difference Result 1233 states and 2170 transitions. [2023-11-26 11:49:34,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-26 11:49:34,909 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 91 [2023-11-26 11:49:34,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:49:34,915 INFO L225 Difference]: With dead ends: 1233 [2023-11-26 11:49:34,916 INFO L226 Difference]: Without dead ends: 799 [2023-11-26 11:49:34,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-26 11:49:34,918 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 517 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 868 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 533 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 1027 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 868 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-26 11:49:34,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [533 Valid, 434 Invalid, 1027 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 868 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-26 11:49:34,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 799 states. [2023-11-26 11:49:34,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 799 to 690. [2023-11-26 11:49:34,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 616 states have (on average 1.7727272727272727) internal successors, (1092), 620 states have internal predecessors, (1092), 59 states have call successors, (59), 12 states have call predecessors, (59), 14 states have return successors, (61), 57 states have call predecessors, (61), 58 states have call successors, (61) [2023-11-26 11:49:34,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 1212 transitions. [2023-11-26 11:49:34,957 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 1212 transitions. Word has length 91 [2023-11-26 11:49:34,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:49:34,958 INFO L495 AbstractCegarLoop]: Abstraction has 690 states and 1212 transitions. [2023-11-26 11:49:34,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-26 11:49:34,958 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 1212 transitions. [2023-11-26 11:49:34,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-26 11:49:34,962 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:49:34,962 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:49:34,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-26 11:49:34,962 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:49:34,962 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:49:34,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1898604051, now seen corresponding path program 1 times [2023-11-26 11:49:34,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:49:34,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449968138] [2023-11-26 11:49:34,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:34,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:49:34,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:35,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:49:35,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:35,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 11:49:35,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:35,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-26 11:49:35,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:35,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-26 11:49:35,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:35,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-26 11:49:35,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:35,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-26 11:49:35,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:35,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-26 11:49:35,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:35,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-26 11:49:35,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:35,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-26 11:49:35,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:35,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-26 11:49:35,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:35,079 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-11-26 11:49:35,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:49:35,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449968138] [2023-11-26 11:49:35,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449968138] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:49:35,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:49:35,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-26 11:49:35,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490349759] [2023-11-26 11:49:35,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:49:35,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:49:35,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:49:35,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:49:35,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:49:35,082 INFO L87 Difference]: Start difference. First operand 690 states and 1212 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-26 11:49:36,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:49:36,225 INFO L93 Difference]: Finished difference Result 1805 states and 3210 transitions. [2023-11-26 11:49:36,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-26 11:49:36,226 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 92 [2023-11-26 11:49:36,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:49:36,235 INFO L225 Difference]: With dead ends: 1805 [2023-11-26 11:49:36,235 INFO L226 Difference]: Without dead ends: 1161 [2023-11-26 11:49:36,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-26 11:49:36,238 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 514 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 876 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 528 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 1033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 876 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:49:36,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [528 Valid, 435 Invalid, 1033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 876 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-26 11:49:36,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1161 states. [2023-11-26 11:49:36,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1161 to 1052. [2023-11-26 11:49:36,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1052 states, 954 states have (on average 1.7756813417190775) internal successors, (1694), 958 states have internal predecessors, (1694), 83 states have call successors, (83), 12 states have call predecessors, (83), 14 states have return successors, (85), 81 states have call predecessors, (85), 82 states have call successors, (85) [2023-11-26 11:49:36,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1052 states to 1052 states and 1862 transitions. [2023-11-26 11:49:36,292 INFO L78 Accepts]: Start accepts. Automaton has 1052 states and 1862 transitions. Word has length 92 [2023-11-26 11:49:36,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:49:36,293 INFO L495 AbstractCegarLoop]: Abstraction has 1052 states and 1862 transitions. [2023-11-26 11:49:36,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-26 11:49:36,293 INFO L276 IsEmpty]: Start isEmpty. Operand 1052 states and 1862 transitions. [2023-11-26 11:49:36,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-26 11:49:36,298 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:49:36,299 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:49:36,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-26 11:49:36,299 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:49:36,299 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:49:36,299 INFO L85 PathProgramCache]: Analyzing trace with hash 630570150, now seen corresponding path program 1 times [2023-11-26 11:49:36,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:49:36,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068995346] [2023-11-26 11:49:36,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:36,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:49:36,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:36,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:49:36,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:36,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 11:49:36,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:36,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-26 11:49:36,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:36,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-26 11:49:36,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:36,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-26 11:49:36,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:36,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-26 11:49:36,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:36,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-26 11:49:36,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:36,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-26 11:49:36,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:36,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-26 11:49:36,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:36,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-26 11:49:36,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:36,401 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-11-26 11:49:36,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:49:36,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068995346] [2023-11-26 11:49:36,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068995346] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:49:36,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:49:36,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-26 11:49:36,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782474485] [2023-11-26 11:49:36,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:49:36,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:49:36,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:49:36,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:49:36,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:49:36,404 INFO L87 Difference]: Start difference. First operand 1052 states and 1862 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-26 11:49:37,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:49:37,571 INFO L93 Difference]: Finished difference Result 2716 states and 4854 transitions. [2023-11-26 11:49:37,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-26 11:49:37,577 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 93 [2023-11-26 11:49:37,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:49:37,591 INFO L225 Difference]: With dead ends: 2716 [2023-11-26 11:49:37,591 INFO L226 Difference]: Without dead ends: 1745 [2023-11-26 11:49:37,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-26 11:49:37,595 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 512 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 874 mSolverCounterSat, 158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 525 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 1032 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 158 IncrementalHoareTripleChecker+Valid, 874 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:49:37,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [525 Valid, 435 Invalid, 1032 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [158 Valid, 874 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-26 11:49:37,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1745 states. [2023-11-26 11:49:37,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1745 to 1636. [2023-11-26 11:49:37,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1636 states, 1499 states have (on average 1.771847898599066) internal successors, (2656), 1503 states have internal predecessors, (2656), 122 states have call successors, (122), 12 states have call predecessors, (122), 14 states have return successors, (124), 120 states have call predecessors, (124), 121 states have call successors, (124) [2023-11-26 11:49:37,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1636 states to 1636 states and 2902 transitions. [2023-11-26 11:49:37,672 INFO L78 Accepts]: Start accepts. Automaton has 1636 states and 2902 transitions. Word has length 93 [2023-11-26 11:49:37,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:49:37,673 INFO L495 AbstractCegarLoop]: Abstraction has 1636 states and 2902 transitions. [2023-11-26 11:49:37,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-26 11:49:37,673 INFO L276 IsEmpty]: Start isEmpty. Operand 1636 states and 2902 transitions. [2023-11-26 11:49:37,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-26 11:49:37,681 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:49:37,681 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:49:37,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-26 11:49:37,682 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:49:37,682 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:49:37,682 INFO L85 PathProgramCache]: Analyzing trace with hash -573659563, now seen corresponding path program 1 times [2023-11-26 11:49:37,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:49:37,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655705759] [2023-11-26 11:49:37,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:37,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:49:37,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:37,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:49:37,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:37,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 11:49:37,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:37,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-26 11:49:37,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:37,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-26 11:49:37,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:37,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-26 11:49:37,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:37,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-26 11:49:37,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:37,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-26 11:49:37,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:37,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-26 11:49:37,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:37,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-26 11:49:37,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:37,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-26 11:49:37,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:37,791 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-11-26 11:49:37,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:49:37,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655705759] [2023-11-26 11:49:37,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655705759] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:49:37,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:49:37,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-26 11:49:37,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989166748] [2023-11-26 11:49:37,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:49:37,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:49:37,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:49:37,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:49:37,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:49:37,794 INFO L87 Difference]: Start difference. First operand 1636 states and 2902 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-26 11:49:38,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:49:38,955 INFO L93 Difference]: Finished difference Result 4215 states and 7544 transitions. [2023-11-26 11:49:38,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-26 11:49:38,956 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 94 [2023-11-26 11:49:38,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:49:38,981 INFO L225 Difference]: With dead ends: 4215 [2023-11-26 11:49:38,981 INFO L226 Difference]: Without dead ends: 2721 [2023-11-26 11:49:38,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-26 11:49:38,988 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 510 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 886 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 525 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 1043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-26 11:49:38,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [525 Valid, 435 Invalid, 1043 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 886 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-26 11:49:38,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2721 states. [2023-11-26 11:49:39,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2721 to 2612. [2023-11-26 11:49:39,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2612 states, 2409 states have (on average 1.7654628476546286) internal successors, (4253), 2413 states have internal predecessors, (4253), 188 states have call successors, (188), 12 states have call predecessors, (188), 14 states have return successors, (190), 186 states have call predecessors, (190), 187 states have call successors, (190) [2023-11-26 11:49:39,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2612 states to 2612 states and 4631 transitions. [2023-11-26 11:49:39,135 INFO L78 Accepts]: Start accepts. Automaton has 2612 states and 4631 transitions. Word has length 94 [2023-11-26 11:49:39,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:49:39,136 INFO L495 AbstractCegarLoop]: Abstraction has 2612 states and 4631 transitions. [2023-11-26 11:49:39,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-26 11:49:39,136 INFO L276 IsEmpty]: Start isEmpty. Operand 2612 states and 4631 transitions. [2023-11-26 11:49:39,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-26 11:49:39,151 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:49:39,152 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:49:39,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-26 11:49:39,152 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:49:39,152 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:49:39,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1386112621, now seen corresponding path program 2 times [2023-11-26 11:49:39,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:49:39,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778200038] [2023-11-26 11:49:39,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:39,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:49:39,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:39,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:49:39,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:39,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 11:49:39,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:39,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-26 11:49:39,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:39,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-26 11:49:39,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:39,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-26 11:49:39,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:39,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-26 11:49:39,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:39,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-26 11:49:39,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:39,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-26 11:49:39,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:39,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-26 11:49:39,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:39,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-26 11:49:39,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:39,300 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-11-26 11:49:39,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:49:39,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778200038] [2023-11-26 11:49:39,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778200038] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:49:39,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:49:39,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-26 11:49:39,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593808547] [2023-11-26 11:49:39,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:49:39,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:49:39,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:49:39,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:49:39,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:49:39,303 INFO L87 Difference]: Start difference. First operand 2612 states and 4631 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-26 11:49:40,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:49:40,338 INFO L93 Difference]: Finished difference Result 4581 states and 8136 transitions. [2023-11-26 11:49:40,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-26 11:49:40,339 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 95 [2023-11-26 11:49:40,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:49:40,362 INFO L225 Difference]: With dead ends: 4581 [2023-11-26 11:49:40,362 INFO L226 Difference]: Without dead ends: 2721 [2023-11-26 11:49:40,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-26 11:49:40,368 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 519 mSDsluCounter, 564 mSDsCounter, 0 mSdLazyCounter, 891 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 535 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 1038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 891 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-26 11:49:40,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [535 Valid, 750 Invalid, 1038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 891 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-26 11:49:40,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2721 states. [2023-11-26 11:49:40,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2721 to 2612. [2023-11-26 11:49:40,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2612 states, 2409 states have (on average 1.7563304275633043) internal successors, (4231), 2413 states have internal predecessors, (4231), 188 states have call successors, (188), 12 states have call predecessors, (188), 14 states have return successors, (190), 186 states have call predecessors, (190), 187 states have call successors, (190) [2023-11-26 11:49:40,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2612 states to 2612 states and 4609 transitions. [2023-11-26 11:49:40,529 INFO L78 Accepts]: Start accepts. Automaton has 2612 states and 4609 transitions. Word has length 95 [2023-11-26 11:49:40,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:49:40,529 INFO L495 AbstractCegarLoop]: Abstraction has 2612 states and 4609 transitions. [2023-11-26 11:49:40,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-26 11:49:40,530 INFO L276 IsEmpty]: Start isEmpty. Operand 2612 states and 4609 transitions. [2023-11-26 11:49:40,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-26 11:49:40,542 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:49:40,542 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:49:40,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-26 11:49:40,542 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:49:40,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:49:40,543 INFO L85 PathProgramCache]: Analyzing trace with hash -1484570524, now seen corresponding path program 1 times [2023-11-26 11:49:40,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:49:40,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251025179] [2023-11-26 11:49:40,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:40,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:49:40,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:40,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:49:40,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:40,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 11:49:40,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:40,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-26 11:49:40,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:40,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-26 11:49:40,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:40,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-26 11:49:40,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:40,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-26 11:49:40,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:40,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-26 11:49:40,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:40,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-26 11:49:40,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:40,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-26 11:49:40,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:40,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-26 11:49:40,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:40,662 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-11-26 11:49:40,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:49:40,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251025179] [2023-11-26 11:49:40,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251025179] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:49:40,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:49:40,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-26 11:49:40,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637290309] [2023-11-26 11:49:40,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:49:40,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:49:40,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:49:40,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:49:40,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:49:40,665 INFO L87 Difference]: Start difference. First operand 2612 states and 4609 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-26 11:49:41,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:49:41,762 INFO L93 Difference]: Finished difference Result 6578 states and 11718 transitions. [2023-11-26 11:49:41,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-26 11:49:41,763 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 95 [2023-11-26 11:49:41,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:49:41,793 INFO L225 Difference]: With dead ends: 6578 [2023-11-26 11:49:41,793 INFO L226 Difference]: Without dead ends: 4267 [2023-11-26 11:49:41,799 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-26 11:49:41,800 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 507 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 883 mSolverCounterSat, 155 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 522 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 1038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 155 IncrementalHoareTripleChecker+Valid, 883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-26 11:49:41,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [522 Valid, 430 Invalid, 1038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [155 Valid, 883 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-26 11:49:41,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4267 states. [2023-11-26 11:49:41,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4267 to 4158. [2023-11-26 11:49:41,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4158 states, 3838 states have (on average 1.7488275143303804) internal successors, (6712), 3842 states have internal predecessors, (6712), 305 states have call successors, (305), 12 states have call predecessors, (305), 14 states have return successors, (307), 303 states have call predecessors, (307), 304 states have call successors, (307) [2023-11-26 11:49:42,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4158 states to 4158 states and 7324 transitions. [2023-11-26 11:49:42,014 INFO L78 Accepts]: Start accepts. Automaton has 4158 states and 7324 transitions. Word has length 95 [2023-11-26 11:49:42,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:49:42,015 INFO L495 AbstractCegarLoop]: Abstraction has 4158 states and 7324 transitions. [2023-11-26 11:49:42,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-26 11:49:42,016 INFO L276 IsEmpty]: Start isEmpty. Operand 4158 states and 7324 transitions. [2023-11-26 11:49:42,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-26 11:49:42,035 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:49:42,036 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:49:42,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-26 11:49:42,036 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:49:42,036 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:49:42,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1115593065, now seen corresponding path program 1 times [2023-11-26 11:49:42,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:49:42,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472512077] [2023-11-26 11:49:42,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:42,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:49:42,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:42,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:49:42,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:42,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 11:49:42,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:42,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-26 11:49:42,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:42,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-26 11:49:42,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:42,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-26 11:49:42,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:42,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-26 11:49:42,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:42,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-26 11:49:42,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:42,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-26 11:49:42,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:42,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-26 11:49:42,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:42,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-26 11:49:42,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:42,151 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-11-26 11:49:42,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:49:42,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472512077] [2023-11-26 11:49:42,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472512077] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:49:42,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:49:42,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-26 11:49:42,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840506454] [2023-11-26 11:49:42,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:49:42,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:49:42,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:49:42,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:49:42,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:49:42,155 INFO L87 Difference]: Start difference. First operand 4158 states and 7324 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-26 11:49:43,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:49:43,508 INFO L93 Difference]: Finished difference Result 10941 states and 19440 transitions. [2023-11-26 11:49:43,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-26 11:49:43,509 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 96 [2023-11-26 11:49:43,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:49:43,574 INFO L225 Difference]: With dead ends: 10941 [2023-11-26 11:49:43,574 INFO L226 Difference]: Without dead ends: 7221 [2023-11-26 11:49:43,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-26 11:49:43,588 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 507 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 870 mSolverCounterSat, 156 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 1026 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 156 IncrementalHoareTripleChecker+Valid, 870 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:49:43,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [523 Valid, 434 Invalid, 1026 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [156 Valid, 870 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-26 11:49:43,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7221 states. [2023-11-26 11:49:43,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7221 to 7112. [2023-11-26 11:49:43,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7112 states, 6576 states have (on average 1.7408759124087592) internal successors, (11448), 6580 states have internal predecessors, (11448), 521 states have call successors, (521), 12 states have call predecessors, (521), 14 states have return successors, (523), 519 states have call predecessors, (523), 520 states have call successors, (523) [2023-11-26 11:49:43,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7112 states to 7112 states and 12492 transitions. [2023-11-26 11:49:43,980 INFO L78 Accepts]: Start accepts. Automaton has 7112 states and 12492 transitions. Word has length 96 [2023-11-26 11:49:43,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:49:43,980 INFO L495 AbstractCegarLoop]: Abstraction has 7112 states and 12492 transitions. [2023-11-26 11:49:43,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-26 11:49:43,981 INFO L276 IsEmpty]: Start isEmpty. Operand 7112 states and 12492 transitions. [2023-11-26 11:49:44,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-26 11:49:44,012 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:49:44,012 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:49:44,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-26 11:49:44,012 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:49:44,013 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:49:44,013 INFO L85 PathProgramCache]: Analyzing trace with hash -1004618186, now seen corresponding path program 1 times [2023-11-26 11:49:44,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:49:44,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273719035] [2023-11-26 11:49:44,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:44,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:49:44,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:44,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:49:44,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:44,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 11:49:44,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:44,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-26 11:49:44,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:44,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-26 11:49:44,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:44,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-26 11:49:44,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:44,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-26 11:49:44,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:44,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-26 11:49:44,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:44,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-26 11:49:44,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:44,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-26 11:49:44,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:44,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-26 11:49:44,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:44,127 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-11-26 11:49:44,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:49:44,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273719035] [2023-11-26 11:49:44,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273719035] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:49:44,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:49:44,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-26 11:49:44,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548710750] [2023-11-26 11:49:44,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:49:44,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:49:44,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:49:44,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:49:44,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:49:44,130 INFO L87 Difference]: Start difference. First operand 7112 states and 12492 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-26 11:49:45,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:49:45,439 INFO L93 Difference]: Finished difference Result 16204 states and 28483 transitions. [2023-11-26 11:49:45,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-26 11:49:45,439 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 97 [2023-11-26 11:49:45,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:49:45,481 INFO L225 Difference]: With dead ends: 16204 [2023-11-26 11:49:45,482 INFO L226 Difference]: Without dead ends: 10263 [2023-11-26 11:49:45,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-26 11:49:45,499 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 505 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 868 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 519 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 1018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 868 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-26 11:49:45,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [519 Valid, 408 Invalid, 1018 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 868 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-26 11:49:45,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10263 states. [2023-11-26 11:49:46,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10263 to 10154. [2023-11-26 11:49:46,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10154 states, 9618 states have (on average 1.7177167810355582) internal successors, (16521), 9622 states have internal predecessors, (16521), 521 states have call successors, (521), 12 states have call predecessors, (521), 14 states have return successors, (523), 519 states have call predecessors, (523), 520 states have call successors, (523) [2023-11-26 11:49:46,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10154 states to 10154 states and 17565 transitions. [2023-11-26 11:49:46,117 INFO L78 Accepts]: Start accepts. Automaton has 10154 states and 17565 transitions. Word has length 97 [2023-11-26 11:49:46,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:49:46,118 INFO L495 AbstractCegarLoop]: Abstraction has 10154 states and 17565 transitions. [2023-11-26 11:49:46,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-26 11:49:46,118 INFO L276 IsEmpty]: Start isEmpty. Operand 10154 states and 17565 transitions. [2023-11-26 11:49:46,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-26 11:49:46,154 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:49:46,154 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:49:46,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-26 11:49:46,155 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:49:46,155 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:49:46,155 INFO L85 PathProgramCache]: Analyzing trace with hash 689593789, now seen corresponding path program 1 times [2023-11-26 11:49:46,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:49:46,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589598391] [2023-11-26 11:49:46,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:46,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:49:46,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:46,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:49:46,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:46,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 11:49:46,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:46,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-26 11:49:46,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:46,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-26 11:49:46,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:46,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-26 11:49:46,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:46,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-26 11:49:46,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:46,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-26 11:49:46,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:46,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-26 11:49:46,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:46,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-26 11:49:46,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:46,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-26 11:49:46,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:46,289 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 26 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-26 11:49:46,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:49:46,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589598391] [2023-11-26 11:49:46,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589598391] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:49:46,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1005508597] [2023-11-26 11:49:46,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:46,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:49:46,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f6dcce-db19-4822-906a-0be7f0db146b/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:49:46,291 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f6dcce-db19-4822-906a-0be7f0db146b/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:49:46,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f6dcce-db19-4822-906a-0be7f0db146b/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-26 11:49:46,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:46,572 INFO L262 TraceCheckSpWp]: Trace formula consists of 894 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 11:49:46,576 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:49:46,700 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-26 11:49:46,704 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:49:46,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1005508597] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:49:46,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:49:46,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2023-11-26 11:49:46,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767396437] [2023-11-26 11:49:46,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:49:46,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:49:46,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:49:46,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:49:46,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-26 11:49:46,708 INFO L87 Difference]: Start difference. First operand 10154 states and 17565 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-26 11:49:47,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:49:47,067 INFO L93 Difference]: Finished difference Result 18712 states and 32496 transitions. [2023-11-26 11:49:47,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:49:47,068 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 98 [2023-11-26 11:49:47,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:49:47,113 INFO L225 Difference]: With dead ends: 18712 [2023-11-26 11:49:47,113 INFO L226 Difference]: Without dead ends: 10159 [2023-11-26 11:49:47,138 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-26 11:49:47,139 INFO L413 NwaCegarLoop]: 353 mSDtfsCounter, 78 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 626 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:49:47,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 626 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:49:47,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10159 states. [2023-11-26 11:49:47,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10159 to 10154. [2023-11-26 11:49:47,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10154 states, 9618 states have (on average 1.7034726554377209) internal successors, (16384), 9622 states have internal predecessors, (16384), 521 states have call successors, (521), 12 states have call predecessors, (521), 14 states have return successors, (523), 519 states have call predecessors, (523), 520 states have call successors, (523) [2023-11-26 11:49:47,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10154 states to 10154 states and 17428 transitions. [2023-11-26 11:49:47,684 INFO L78 Accepts]: Start accepts. Automaton has 10154 states and 17428 transitions. Word has length 98 [2023-11-26 11:49:47,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:49:47,684 INFO L495 AbstractCegarLoop]: Abstraction has 10154 states and 17428 transitions. [2023-11-26 11:49:47,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-26 11:49:47,684 INFO L276 IsEmpty]: Start isEmpty. Operand 10154 states and 17428 transitions. [2023-11-26 11:49:47,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-26 11:49:47,727 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:49:47,728 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:49:47,742 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f6dcce-db19-4822-906a-0be7f0db146b/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-26 11:49:47,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f6dcce-db19-4822-906a-0be7f0db146b/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-26 11:49:47,936 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:49:47,937 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:49:47,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1887696551, now seen corresponding path program 1 times [2023-11-26 11:49:47,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:49:47,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536830010] [2023-11-26 11:49:47,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:47,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:49:47,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:48,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:49:48,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:48,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 11:49:48,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:48,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-26 11:49:48,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:48,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-26 11:49:48,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:48,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-26 11:49:48,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:48,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-26 11:49:48,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:48,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-26 11:49:48,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:48,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-26 11:49:48,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:48,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-26 11:49:48,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:48,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-26 11:49:48,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:48,038 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-11-26 11:49:48,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:49:48,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536830010] [2023-11-26 11:49:48,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536830010] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:49:48,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:49:48,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-26 11:49:48,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072760019] [2023-11-26 11:49:48,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:49:48,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:49:48,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:49:48,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:49:48,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:49:48,041 INFO L87 Difference]: Start difference. First operand 10154 states and 17428 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-26 11:49:49,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:49:49,579 INFO L93 Difference]: Finished difference Result 27147 states and 46818 transitions. [2023-11-26 11:49:49,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-26 11:49:49,580 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 98 [2023-11-26 11:49:49,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:49:49,653 INFO L225 Difference]: With dead ends: 27147 [2023-11-26 11:49:49,653 INFO L226 Difference]: Without dead ends: 18437 [2023-11-26 11:49:49,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-26 11:49:49,678 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 504 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 852 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 520 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 1015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:49:49,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [520 Valid, 434 Invalid, 1015 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 852 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-26 11:49:49,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18437 states. [2023-11-26 11:49:50,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18437 to 18328. [2023-11-26 11:49:50,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18328 states, 17381 states have (on average 1.688913181059778) internal successors, (29355), 17385 states have internal predecessors, (29355), 932 states have call successors, (932), 12 states have call predecessors, (932), 14 states have return successors, (934), 930 states have call predecessors, (934), 931 states have call successors, (934) [2023-11-26 11:49:50,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18328 states to 18328 states and 31221 transitions. [2023-11-26 11:49:50,633 INFO L78 Accepts]: Start accepts. Automaton has 18328 states and 31221 transitions. Word has length 98 [2023-11-26 11:49:50,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:49:50,634 INFO L495 AbstractCegarLoop]: Abstraction has 18328 states and 31221 transitions. [2023-11-26 11:49:50,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-26 11:49:50,634 INFO L276 IsEmpty]: Start isEmpty. Operand 18328 states and 31221 transitions. [2023-11-26 11:49:50,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-26 11:49:50,704 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:49:50,705 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:49:50,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-26 11:49:50,705 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:49:50,705 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:49:50,706 INFO L85 PathProgramCache]: Analyzing trace with hash -766007876, now seen corresponding path program 1 times [2023-11-26 11:49:50,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:49:50,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737480576] [2023-11-26 11:49:50,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:50,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:49:50,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:50,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:49:50,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:50,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 11:49:50,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:50,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-26 11:49:50,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:50,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-26 11:49:50,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:50,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-26 11:49:50,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:50,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-26 11:49:50,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:50,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-26 11:49:50,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:50,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-26 11:49:50,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:50,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-26 11:49:50,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:50,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-26 11:49:50,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:50,832 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-11-26 11:49:50,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:49:50,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737480576] [2023-11-26 11:49:50,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737480576] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:49:50,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:49:50,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-26 11:49:50,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858127251] [2023-11-26 11:49:50,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:49:50,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:49:50,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:49:50,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:49:50,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:49:50,835 INFO L87 Difference]: Start difference. First operand 18328 states and 31221 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-26 11:49:52,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:49:52,832 INFO L93 Difference]: Finished difference Result 50494 states and 86265 transitions. [2023-11-26 11:49:52,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-26 11:49:52,833 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 99 [2023-11-26 11:49:52,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:49:52,950 INFO L225 Difference]: With dead ends: 50494 [2023-11-26 11:49:52,950 INFO L226 Difference]: Without dead ends: 34097 [2023-11-26 11:49:52,972 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-26 11:49:52,973 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 501 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 881 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 517 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 1038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 881 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-26 11:49:52,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [517 Valid, 438 Invalid, 1038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 881 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-26 11:49:53,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34097 states. [2023-11-26 11:49:54,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34097 to 33988. [2023-11-26 11:49:54,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33988 states, 32243 states have (on average 1.6720528486803337) internal successors, (53912), 32247 states have internal predecessors, (53912), 1730 states have call successors, (1730), 12 states have call predecessors, (1730), 14 states have return successors, (1732), 1728 states have call predecessors, (1732), 1729 states have call successors, (1732) [2023-11-26 11:49:54,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33988 states to 33988 states and 57374 transitions. [2023-11-26 11:49:54,517 INFO L78 Accepts]: Start accepts. Automaton has 33988 states and 57374 transitions. Word has length 99 [2023-11-26 11:49:54,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:49:54,517 INFO L495 AbstractCegarLoop]: Abstraction has 33988 states and 57374 transitions. [2023-11-26 11:49:54,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-26 11:49:54,518 INFO L276 IsEmpty]: Start isEmpty. Operand 33988 states and 57374 transitions. [2023-11-26 11:49:54,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-26 11:49:54,560 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:49:54,560 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 3, 3, 3, 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] [2023-11-26 11:49:54,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-26 11:49:54,560 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:49:54,560 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:49:54,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1897087177, now seen corresponding path program 1 times [2023-11-26 11:49:54,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:49:54,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276799873] [2023-11-26 11:49:54,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:54,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:49:54,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:54,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:49:54,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:54,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 11:49:54,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:54,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-26 11:49:54,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:54,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-26 11:49:54,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:54,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-26 11:49:54,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:54,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-26 11:49:54,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:54,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-26 11:49:54,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:54,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-26 11:49:54,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:54,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-26 11:49:54,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:54,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-26 11:49:54,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:54,721 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 21 proven. 6 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-11-26 11:49:54,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:49:54,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276799873] [2023-11-26 11:49:54,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276799873] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:49:54,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1982181850] [2023-11-26 11:49:54,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:54,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:49:54,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f6dcce-db19-4822-906a-0be7f0db146b/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:49:54,725 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f6dcce-db19-4822-906a-0be7f0db146b/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:49:54,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f6dcce-db19-4822-906a-0be7f0db146b/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-26 11:49:55,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:55,018 INFO L262 TraceCheckSpWp]: Trace formula consists of 896 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 11:49:55,022 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:49:55,045 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-11-26 11:49:55,046 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:49:55,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1982181850] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:49:55,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:49:55,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2023-11-26 11:49:55,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081215682] [2023-11-26 11:49:55,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:49:55,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:49:55,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:49:55,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:49:55,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-26 11:49:55,049 INFO L87 Difference]: Start difference. First operand 33988 states and 57374 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-26 11:49:56,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:49:56,367 INFO L93 Difference]: Finished difference Result 65446 states and 110729 transitions. [2023-11-26 11:49:56,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:49:56,367 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 100 [2023-11-26 11:49:56,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:49:56,564 INFO L225 Difference]: With dead ends: 65446 [2023-11-26 11:49:56,564 INFO L226 Difference]: Without dead ends: 33993 [2023-11-26 11:49:56,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-26 11:49:56,603 INFO L413 NwaCegarLoop]: 353 mSDtfsCounter, 77 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 626 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:49:56,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 626 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:49:56,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33993 states. [2023-11-26 11:49:58,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33993 to 33988. [2023-11-26 11:49:58,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33988 states, 32243 states have (on average 1.6558322736718047) internal successors, (53389), 32247 states have internal predecessors, (53389), 1730 states have call successors, (1730), 12 states have call predecessors, (1730), 14 states have return successors, (1732), 1728 states have call predecessors, (1732), 1729 states have call successors, (1732) [2023-11-26 11:49:58,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33988 states to 33988 states and 56851 transitions. [2023-11-26 11:49:58,231 INFO L78 Accepts]: Start accepts. Automaton has 33988 states and 56851 transitions. Word has length 100 [2023-11-26 11:49:58,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:49:58,232 INFO L495 AbstractCegarLoop]: Abstraction has 33988 states and 56851 transitions. [2023-11-26 11:49:58,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-26 11:49:58,232 INFO L276 IsEmpty]: Start isEmpty. Operand 33988 states and 56851 transitions. [2023-11-26 11:49:58,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-26 11:49:58,277 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:49:58,277 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:49:58,291 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f6dcce-db19-4822-906a-0be7f0db146b/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-26 11:49:58,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f6dcce-db19-4822-906a-0be7f0db146b/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:49:58,485 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:49:58,485 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:49:58,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1438749979, now seen corresponding path program 1 times [2023-11-26 11:49:58,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:49:58,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415920777] [2023-11-26 11:49:58,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:58,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:49:58,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:58,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:49:58,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:58,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 11:49:58,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:58,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-26 11:49:58,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:58,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-26 11:49:58,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:58,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-26 11:49:58,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:58,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-26 11:49:58,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:58,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-26 11:49:58,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:58,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-26 11:49:58,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:58,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-26 11:49:58,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:58,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-26 11:49:58,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:58,607 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-11-26 11:49:58,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:49:58,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415920777] [2023-11-26 11:49:58,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415920777] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:49:58,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:49:58,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-26 11:49:58,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854375563] [2023-11-26 11:49:58,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:49:58,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:49:58,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:49:58,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:49:58,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:49:58,610 INFO L87 Difference]: Start difference. First operand 33988 states and 56851 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10)