./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec27_product28.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4273c5c2-1e7d-4bdf-939c-ce87a1d092f3/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4273c5c2-1e7d-4bdf-939c-ce87a1d092f3/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4273c5c2-1e7d-4bdf-939c-ce87a1d092f3/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4273c5c2-1e7d-4bdf-939c-ce87a1d092f3/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec27_product28.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4273c5c2-1e7d-4bdf-939c-ce87a1d092f3/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4273c5c2-1e7d-4bdf-939c-ce87a1d092f3/bin/uautomizer-verify-LYvppIcaGC --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 4fb12138b73b283c9fdc444b2c9ebb4aa3340005d69e98d463fd0b0beb9c1e74 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:06:22,675 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:06:22,746 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4273c5c2-1e7d-4bdf-939c-ce87a1d092f3/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 01:06:22,752 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:06:22,752 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:06:22,777 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:06:22,778 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:06:22,778 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:06:22,778 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:06:22,778 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:06:22,779 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:06:22,779 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:06:22,779 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:06:22,779 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:06:22,779 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:06:22,779 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:06:22,780 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:06:22,780 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 01:06:22,780 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 01:06:22,780 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 01:06:22,780 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:06:22,780 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:06:22,780 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:06:22,780 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:06:22,780 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 01:06:22,781 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:06:22,781 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:06:22,781 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:06:22,781 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:06:22,781 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:06:22,781 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:06:22,781 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:06:22,781 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:06:22,782 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:06:22,782 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:06:22,782 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:06:22,782 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:06:22,782 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:06:22,782 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:06:22,782 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:06:22,782 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:06:22,783 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:06:22,783 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 01:06:22,783 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 01:06:22,783 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:06:22,783 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:06:22,783 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:06:22,783 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:06:22,783 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4273c5c2-1e7d-4bdf-939c-ce87a1d092f3/bin/uautomizer-verify-LYvppIcaGC 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 -> 4fb12138b73b283c9fdc444b2c9ebb4aa3340005d69e98d463fd0b0beb9c1e74 [2024-11-24 01:06:23,051 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:06:23,060 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:06:23,064 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:06:23,065 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:06:23,066 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:06:23,067 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4273c5c2-1e7d-4bdf-939c-ce87a1d092f3/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/product-lines/email_spec27_product28.cil.c [2024-11-24 01:06:25,933 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4273c5c2-1e7d-4bdf-939c-ce87a1d092f3/bin/uautomizer-verify-LYvppIcaGC/data/b753fd214/42ec50e9029441eabb41251c4d4cbed2/FLAG74389dcb2 [2024-11-24 01:06:26,424 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:06:26,424 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4273c5c2-1e7d-4bdf-939c-ce87a1d092f3/sv-benchmarks/c/product-lines/email_spec27_product28.cil.c [2024-11-24 01:06:26,456 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4273c5c2-1e7d-4bdf-939c-ce87a1d092f3/bin/uautomizer-verify-LYvppIcaGC/data/b753fd214/42ec50e9029441eabb41251c4d4cbed2/FLAG74389dcb2 [2024-11-24 01:06:26,481 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4273c5c2-1e7d-4bdf-939c-ce87a1d092f3/bin/uautomizer-verify-LYvppIcaGC/data/b753fd214/42ec50e9029441eabb41251c4d4cbed2 [2024-11-24 01:06:26,484 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:06:26,488 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:06:26,490 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:06:26,490 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:06:26,496 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:06:26,497 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:06:26" (1/1) ... [2024-11-24 01:06:26,498 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3eed9dcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:06:26, skipping insertion in model container [2024-11-24 01:06:26,498 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:06:26" (1/1) ... [2024-11-24 01:06:26,578 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:06:27,210 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4273c5c2-1e7d-4bdf-939c-ce87a1d092f3/sv-benchmarks/c/product-lines/email_spec27_product28.cil.c[32786,32799] [2024-11-24 01:06:27,340 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:06:27,354 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:06:27,363 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"VerifyForward_spec.i","") [48] [2024-11-24 01:06:27,365 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [95] [2024-11-24 01:06:27,365 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [386] [2024-11-24 01:06:27,365 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [532] [2024-11-24 01:06:27,365 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [898] [2024-11-24 01:06:27,365 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1300] [2024-11-24 01:06:27,366 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1622] [2024-11-24 01:06:27,366 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1631] [2024-11-24 01:06:27,367 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1648] [2024-11-24 01:06:27,367 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1683] [2024-11-24 01:06:27,367 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2752] [2024-11-24 01:06:27,502 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4273c5c2-1e7d-4bdf-939c-ce87a1d092f3/sv-benchmarks/c/product-lines/email_spec27_product28.cil.c[32786,32799] [2024-11-24 01:06:27,557 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:06:27,588 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:06:27,589 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:06:27 WrapperNode [2024-11-24 01:06:27,589 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:06:27,590 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:06:27,590 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:06:27,590 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:06:27,596 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:06:27" (1/1) ... [2024-11-24 01:06:27,624 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:06:27" (1/1) ... [2024-11-24 01:06:27,673 INFO L138 Inliner]: procedures = 128, calls = 197, calls flagged for inlining = 54, calls inlined = 45, statements flattened = 865 [2024-11-24 01:06:27,673 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:06:27,674 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:06:27,674 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:06:27,674 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:06:27,686 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:06:27" (1/1) ... [2024-11-24 01:06:27,686 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:06:27" (1/1) ... [2024-11-24 01:06:27,691 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:06:27" (1/1) ... [2024-11-24 01:06:27,727 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4]. 29 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0]. [2024-11-24 01:06:27,731 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:06:27" (1/1) ... [2024-11-24 01:06:27,731 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:06:27" (1/1) ... [2024-11-24 01:06:27,749 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:06:27" (1/1) ... [2024-11-24 01:06:27,750 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:06:27" (1/1) ... [2024-11-24 01:06:27,766 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:06:27" (1/1) ... [2024-11-24 01:06:27,773 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:06:27" (1/1) ... [2024-11-24 01:06:27,780 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:06:27" (1/1) ... [2024-11-24 01:06:27,789 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:06:27,790 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:06:27,790 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:06:27,790 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:06:27,791 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:06:27" (1/1) ... [2024-11-24 01:06:27,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:06:27,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4273c5c2-1e7d-4bdf-939c-ce87a1d092f3/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:06:27,825 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4273c5c2-1e7d-4bdf-939c-ce87a1d092f3/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:06:27,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4273c5c2-1e7d-4bdf-939c-ce87a1d092f3/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:06:27,862 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-11-24 01:06:27,862 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-11-24 01:06:27,863 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-11-24 01:06:27,863 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-11-24 01:06:27,863 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-11-24 01:06:27,863 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-11-24 01:06:27,863 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-24 01:06:27,864 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-24 01:06:27,865 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-24 01:06:27,865 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-24 01:06:27,865 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-24 01:06:27,865 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-24 01:06:27,865 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-24 01:06:27,865 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-24 01:06:27,865 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-11-24 01:06:27,865 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-11-24 01:06:27,865 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-24 01:06:27,865 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-24 01:06:27,865 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-24 01:06:27,866 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-24 01:06:27,866 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-24 01:06:27,866 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-24 01:06:27,866 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-24 01:06:27,866 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-24 01:06:27,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:06:27,866 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-24 01:06:27,866 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-24 01:06:27,866 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-11-24 01:06:27,866 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-11-24 01:06:27,866 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-24 01:06:27,866 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-24 01:06:27,866 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-24 01:06:27,866 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-24 01:06:27,867 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-24 01:06:27,867 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-24 01:06:27,867 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2024-11-24 01:06:27,867 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2024-11-24 01:06:27,867 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-11-24 01:06:27,867 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-11-24 01:06:27,867 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-24 01:06:27,867 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-24 01:06:27,869 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-11-24 01:06:27,870 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-11-24 01:06:27,870 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-24 01:06:27,870 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-24 01:06:27,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 01:06:27,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-24 01:06:27,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-24 01:06:27,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-24 01:06:27,871 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-24 01:06:27,871 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-24 01:06:27,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:06:27,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:06:28,160 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:06:28,163 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:06:29,262 INFO L? ?]: Removed 406 outVars from TransFormulas that were not future-live. [2024-11-24 01:06:29,262 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:06:29,292 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:06:29,292 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 01:06:29,293 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:06:29 BoogieIcfgContainer [2024-11-24 01:06:29,293 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:06:29,299 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:06:29,299 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:06:29,304 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:06:29,305 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:06:26" (1/3) ... [2024-11-24 01:06:29,305 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d8b7ad3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:06:29, skipping insertion in model container [2024-11-24 01:06:29,305 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:06:27" (2/3) ... [2024-11-24 01:06:29,306 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d8b7ad3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:06:29, skipping insertion in model container [2024-11-24 01:06:29,306 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:06:29" (3/3) ... [2024-11-24 01:06:29,308 INFO L128 eAbstractionObserver]: Analyzing ICFG email_spec27_product28.cil.c [2024-11-24 01:06:29,343 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:06:29,345 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG email_spec27_product28.cil.c that has 24 procedures, 333 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 01:06:29,424 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:06:29,435 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@65f74eb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:06:29,435 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 01:06:29,440 INFO L276 IsEmpty]: Start isEmpty. Operand has 333 states, 257 states have (on average 1.5214007782101167) internal successors, (391), 261 states have internal predecessors, (391), 51 states have call successors, (51), 23 states have call predecessors, (51), 23 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-24 01:06:29,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-24 01:06:29,458 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:06:29,459 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:06:29,459 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:06:29,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:06:29,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1662804301, now seen corresponding path program 1 times [2024-11-24 01:06:29,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:06:29,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180440582] [2024-11-24 01:06:29,473 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:06:29,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:06:29,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:06:30,467 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-24 01:06:30,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:06:30,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180440582] [2024-11-24 01:06:30,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180440582] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:06:30,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [111197113] [2024-11-24 01:06:30,472 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:06:30,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:06:30,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4273c5c2-1e7d-4bdf-939c-ce87a1d092f3/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:06:30,476 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4273c5c2-1e7d-4bdf-939c-ce87a1d092f3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:06:30,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4273c5c2-1e7d-4bdf-939c-ce87a1d092f3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 01:06:30,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:06:30,993 INFO L256 TraceCheckSpWp]: Trace formula consists of 1133 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-24 01:06:31,006 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:06:31,061 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-24 01:06:31,061 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:06:31,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [111197113] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:06:31,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:06:31,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-24 01:06:31,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497167783] [2024-11-24 01:06:31,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:06:31,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:06:31,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:06:31,106 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:06:31,107 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:06:31,110 INFO L87 Difference]: Start difference. First operand has 333 states, 257 states have (on average 1.5214007782101167) internal successors, (391), 261 states have internal predecessors, (391), 51 states have call successors, (51), 23 states have call predecessors, (51), 23 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-24 01:06:31,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:06:31,230 INFO L93 Difference]: Finished difference Result 520 states and 754 transitions. [2024-11-24 01:06:31,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:06:31,233 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 139 [2024-11-24 01:06:31,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:06:31,247 INFO L225 Difference]: With dead ends: 520 [2024-11-24 01:06:31,247 INFO L226 Difference]: Without dead ends: 328 [2024-11-24 01:06:31,252 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:06:31,257 INFO L435 NwaCegarLoop]: 487 mSDtfsCounter, 1 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 971 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:06:31,257 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 971 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:06:31,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2024-11-24 01:06:31,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 327. [2024-11-24 01:06:31,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 252 states have (on average 1.5119047619047619) internal successors, (381), 255 states have internal predecessors, (381), 51 states have call successors, (51), 23 states have call predecessors, (51), 23 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-24 01:06:31,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 482 transitions. [2024-11-24 01:06:31,340 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 482 transitions. Word has length 139 [2024-11-24 01:06:31,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:06:31,341 INFO L471 AbstractCegarLoop]: Abstraction has 327 states and 482 transitions. [2024-11-24 01:06:31,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-24 01:06:31,342 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 482 transitions. [2024-11-24 01:06:31,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-24 01:06:31,351 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:06:31,352 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:06:31,365 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4273c5c2-1e7d-4bdf-939c-ce87a1d092f3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 01:06:31,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4273c5c2-1e7d-4bdf-939c-ce87a1d092f3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-24 01:06:31,557 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:06:31,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:06:31,558 INFO L85 PathProgramCache]: Analyzing trace with hash 553048363, now seen corresponding path program 1 times [2024-11-24 01:06:31,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:06:31,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146833807] [2024-11-24 01:06:31,558 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:06:31,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:06:31,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:06:32,124 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-24 01:06:32,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:06:32,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146833807] [2024-11-24 01:06:32,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146833807] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:06:32,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [616490322] [2024-11-24 01:06:32,125 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:06:32,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:06:32,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4273c5c2-1e7d-4bdf-939c-ce87a1d092f3/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:06:32,132 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4273c5c2-1e7d-4bdf-939c-ce87a1d092f3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:06:32,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4273c5c2-1e7d-4bdf-939c-ce87a1d092f3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 01:06:32,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:06:32,559 INFO L256 TraceCheckSpWp]: Trace formula consists of 1144 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 01:06:32,566 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:06:32,594 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-24 01:06:32,594 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:06:32,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [616490322] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:06:32,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:06:32,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-24 01:06:32,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698737042] [2024-11-24 01:06:32,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:06:32,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:06:32,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:06:32,605 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:06:32,605 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:06:32,605 INFO L87 Difference]: Start difference. First operand 327 states and 482 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-24 01:06:32,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:06:32,651 INFO L93 Difference]: Finished difference Result 679 states and 1015 transitions. [2024-11-24 01:06:32,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:06:32,651 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 144 [2024-11-24 01:06:32,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:06:32,655 INFO L225 Difference]: With dead ends: 679 [2024-11-24 01:06:32,655 INFO L226 Difference]: Without dead ends: 378 [2024-11-24 01:06:32,657 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:06:32,658 INFO L435 NwaCegarLoop]: 487 mSDtfsCounter, 99 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 921 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:06:32,659 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 921 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:06:32,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2024-11-24 01:06:32,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 370. [2024-11-24 01:06:32,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 284 states have (on average 1.528169014084507) internal successors, (434), 287 states have internal predecessors, (434), 62 states have call successors, (62), 23 states have call predecessors, (62), 23 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-24 01:06:32,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 557 transitions. [2024-11-24 01:06:32,696 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 557 transitions. Word has length 144 [2024-11-24 01:06:32,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:06:32,696 INFO L471 AbstractCegarLoop]: Abstraction has 370 states and 557 transitions. [2024-11-24 01:06:32,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-24 01:06:32,697 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 557 transitions. [2024-11-24 01:06:32,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-24 01:06:32,702 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:06:32,702 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:06:32,714 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4273c5c2-1e7d-4bdf-939c-ce87a1d092f3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-24 01:06:32,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4273c5c2-1e7d-4bdf-939c-ce87a1d092f3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:06:32,903 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:06:32,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:06:32,904 INFO L85 PathProgramCache]: Analyzing trace with hash -781334428, now seen corresponding path program 1 times [2024-11-24 01:06:32,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:06:32,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065447265] [2024-11-24 01:06:32,905 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:06:32,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:06:32,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:06:33,287 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-24 01:06:33,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:06:33,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065447265] [2024-11-24 01:06:33,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065447265] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:06:33,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [82931166] [2024-11-24 01:06:33,290 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:06:33,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:06:33,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4273c5c2-1e7d-4bdf-939c-ce87a1d092f3/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:06:33,293 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4273c5c2-1e7d-4bdf-939c-ce87a1d092f3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:06:33,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4273c5c2-1e7d-4bdf-939c-ce87a1d092f3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 01:06:33,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:06:33,711 INFO L256 TraceCheckSpWp]: Trace formula consists of 1149 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-24 01:06:33,722 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:06:33,802 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-24 01:06:33,802 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:06:33,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [82931166] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:06:33,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:06:33,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-24 01:06:33,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240705352] [2024-11-24 01:06:33,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:06:33,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:06:33,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:06:33,804 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:06:33,804 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:06:33,805 INFO L87 Difference]: Start difference. First operand 370 states and 557 transitions. Second operand has 5 states, 4 states have (on average 22.75) internal successors, (91), 5 states have internal predecessors, (91), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-24 01:06:33,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:06:33,911 INFO L93 Difference]: Finished difference Result 731 states and 1104 transitions. [2024-11-24 01:06:33,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:06:33,912 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 22.75) internal successors, (91), 5 states have internal predecessors, (91), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 145 [2024-11-24 01:06:33,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:06:33,917 INFO L225 Difference]: With dead ends: 731 [2024-11-24 01:06:33,920 INFO L226 Difference]: Without dead ends: 372 [2024-11-24 01:06:33,922 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:06:33,923 INFO L435 NwaCegarLoop]: 473 mSDtfsCounter, 2 mSDsluCounter, 1408 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1881 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:06:33,925 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1881 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:06:33,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2024-11-24 01:06:33,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 372. [2024-11-24 01:06:33,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 285 states have (on average 1.5263157894736843) internal successors, (435), 289 states have internal predecessors, (435), 62 states have call successors, (62), 23 states have call predecessors, (62), 24 states have return successors, (63), 61 states have call predecessors, (63), 61 states have call successors, (63) [2024-11-24 01:06:33,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 560 transitions. [2024-11-24 01:06:33,968 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 560 transitions. Word has length 145 [2024-11-24 01:06:33,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:06:33,969 INFO L471 AbstractCegarLoop]: Abstraction has 372 states and 560 transitions. [2024-11-24 01:06:33,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 22.75) internal successors, (91), 5 states have internal predecessors, (91), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-24 01:06:33,970 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 560 transitions. [2024-11-24 01:06:33,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-24 01:06:33,975 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:06:33,976 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:06:33,987 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4273c5c2-1e7d-4bdf-939c-ce87a1d092f3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-24 01:06:34,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4273c5c2-1e7d-4bdf-939c-ce87a1d092f3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:06:34,176 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:06:34,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:06:34,177 INFO L85 PathProgramCache]: Analyzing trace with hash 608612423, now seen corresponding path program 1 times [2024-11-24 01:06:34,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:06:34,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136269188] [2024-11-24 01:06:34,177 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:06:34,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:06:34,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:06:34,469 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-24 01:06:34,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:06:34,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136269188] [2024-11-24 01:06:34,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136269188] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:06:34,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1125144646] [2024-11-24 01:06:34,471 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:06:34,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:06:34,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4273c5c2-1e7d-4bdf-939c-ce87a1d092f3/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:06:34,476 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4273c5c2-1e7d-4bdf-939c-ce87a1d092f3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:06:34,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4273c5c2-1e7d-4bdf-939c-ce87a1d092f3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-24 01:06:34,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:06:34,881 INFO L256 TraceCheckSpWp]: Trace formula consists of 1150 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-24 01:06:34,888 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:06:34,960 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-24 01:06:34,963 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:06:34,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1125144646] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:06:34,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:06:34,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2024-11-24 01:06:34,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457096390] [2024-11-24 01:06:34,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:06:34,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:06:34,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:06:34,965 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:06:34,965 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:06:34,966 INFO L87 Difference]: Start difference. First operand 372 states and 560 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-24 01:06:35,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:06:35,075 INFO L93 Difference]: Finished difference Result 733 states and 1109 transitions. [2024-11-24 01:06:35,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:06:35,075 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 146 [2024-11-24 01:06:35,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:06:35,078 INFO L225 Difference]: With dead ends: 733 [2024-11-24 01:06:35,080 INFO L226 Difference]: Without dead ends: 374 [2024-11-24 01:06:35,082 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:06:35,086 INFO L435 NwaCegarLoop]: 471 mSDtfsCounter, 2 mSDsluCounter, 1396 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1867 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:06:35,086 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1867 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:06:35,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2024-11-24 01:06:35,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 374. [2024-11-24 01:06:35,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 286 states have (on average 1.5244755244755244) internal successors, (436), 291 states have internal predecessors, (436), 62 states have call successors, (62), 23 states have call predecessors, (62), 25 states have return successors, (68), 61 states have call predecessors, (68), 61 states have call successors, (68) [2024-11-24 01:06:35,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 566 transitions. [2024-11-24 01:06:35,117 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 566 transitions. Word has length 146 [2024-11-24 01:06:35,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:06:35,118 INFO L471 AbstractCegarLoop]: Abstraction has 374 states and 566 transitions. [2024-11-24 01:06:35,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-24 01:06:35,118 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 566 transitions. [2024-11-24 01:06:35,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-24 01:06:35,123 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:06:35,123 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:06:35,134 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4273c5c2-1e7d-4bdf-939c-ce87a1d092f3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-24 01:06:35,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4273c5c2-1e7d-4bdf-939c-ce87a1d092f3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:06:35,327 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:06:35,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:06:35,327 INFO L85 PathProgramCache]: Analyzing trace with hash -837049532, now seen corresponding path program 1 times [2024-11-24 01:06:35,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:06:35,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274788080] [2024-11-24 01:06:35,328 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:06:35,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:06:35,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:06:35,609 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-24 01:06:35,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:06:35,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274788080] [2024-11-24 01:06:35,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274788080] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:06:35,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:06:35,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:06:35,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76053768] [2024-11-24 01:06:35,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:06:35,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:06:35,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:06:35,611 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:06:35,611 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:06:35,611 INFO L87 Difference]: Start difference. First operand 374 states and 566 transitions. Second operand has 5 states, 4 states have (on average 22.25) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-24 01:06:35,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:06:35,684 INFO L93 Difference]: Finished difference Result 725 states and 1100 transitions. [2024-11-24 01:06:35,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:06:35,685 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 22.25) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 147 [2024-11-24 01:06:35,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:06:35,689 INFO L225 Difference]: With dead ends: 725 [2024-11-24 01:06:35,690 INFO L226 Difference]: Without dead ends: 374 [2024-11-24 01:06:35,692 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:06:35,693 INFO L435 NwaCegarLoop]: 474 mSDtfsCounter, 2 mSDsluCounter, 1411 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1885 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:06:35,693 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1885 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:06:35,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2024-11-24 01:06:35,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 374. [2024-11-24 01:06:35,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 286 states have (on average 1.5244755244755244) internal successors, (436), 291 states have internal predecessors, (436), 62 states have call successors, (62), 23 states have call predecessors, (62), 25 states have return successors, (67), 61 states have call predecessors, (67), 61 states have call successors, (67) [2024-11-24 01:06:35,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 565 transitions. [2024-11-24 01:06:35,717 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 565 transitions. Word has length 147 [2024-11-24 01:06:35,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:06:35,718 INFO L471 AbstractCegarLoop]: Abstraction has 374 states and 565 transitions. [2024-11-24 01:06:35,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 22.25) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-24 01:06:35,718 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 565 transitions. [2024-11-24 01:06:35,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-24 01:06:35,721 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:06:35,721 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:06:35,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 01:06:35,722 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:06:35,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:06:35,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1236192517, now seen corresponding path program 2 times [2024-11-24 01:06:35,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:06:35,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758458518] [2024-11-24 01:06:35,723 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:06:35,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:06:35,764 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-24 01:06:35,764 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:06:36,006 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-24 01:06:36,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:06:36,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758458518] [2024-11-24 01:06:36,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758458518] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:06:36,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:06:36,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 01:06:36,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739418070] [2024-11-24 01:06:36,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:06:36,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 01:06:36,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:06:36,007 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 01:06:36,008 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:06:36,008 INFO L87 Difference]: Start difference. First operand 374 states and 565 transitions. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 4 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-24 01:06:36,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:06:36,612 INFO L93 Difference]: Finished difference Result 853 states and 1297 transitions. [2024-11-24 01:06:36,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 01:06:36,613 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 4 states have call predecessors, (18), 3 states have call successors, (18) Word has length 148 [2024-11-24 01:06:36,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:06:36,621 INFO L225 Difference]: With dead ends: 853 [2024-11-24 01:06:36,621 INFO L226 Difference]: Without dead ends: 682 [2024-11-24 01:06:36,623 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-11-24 01:06:36,623 INFO L435 NwaCegarLoop]: 508 mSDtfsCounter, 898 mSDsluCounter, 2216 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 901 SdHoareTripleChecker+Valid, 2724 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:06:36,624 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [901 Valid, 2724 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 01:06:36,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2024-11-24 01:06:36,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 638. [2024-11-24 01:06:36,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 493 states have (on average 1.5598377281947262) internal successors, (769), 499 states have internal predecessors, (769), 104 states have call successors, (104), 39 states have call predecessors, (104), 40 states have return successors, (119), 102 states have call predecessors, (119), 103 states have call successors, (119) [2024-11-24 01:06:36,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 992 transitions. [2024-11-24 01:06:36,685 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 992 transitions. Word has length 148 [2024-11-24 01:06:36,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:06:36,686 INFO L471 AbstractCegarLoop]: Abstraction has 638 states and 992 transitions. [2024-11-24 01:06:36,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 4 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-24 01:06:36,686 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 992 transitions. [2024-11-24 01:06:36,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-24 01:06:36,691 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:06:36,691 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:06:36,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 01:06:36,692 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:06:36,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:06:36,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1984141352, now seen corresponding path program 1 times [2024-11-24 01:06:36,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:06:36,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659495151] [2024-11-24 01:06:36,693 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:06:36,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:06:36,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:06:36,960 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-24 01:06:36,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:06:36,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659495151] [2024-11-24 01:06:36,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659495151] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:06:36,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:06:36,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:06:36,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704169314] [2024-11-24 01:06:36,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:06:36,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:06:36,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:06:36,962 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:06:36,962 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:06:36,962 INFO L87 Difference]: Start difference. First operand 638 states and 992 transitions. Second operand has 5 states, 4 states have (on average 23.0) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-24 01:06:37,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:06:37,040 INFO L93 Difference]: Finished difference Result 1245 states and 1944 transitions. [2024-11-24 01:06:37,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:06:37,041 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 23.0) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 149 [2024-11-24 01:06:37,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:06:37,046 INFO L225 Difference]: With dead ends: 1245 [2024-11-24 01:06:37,046 INFO L226 Difference]: Without dead ends: 642 [2024-11-24 01:06:37,048 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:06:37,049 INFO L435 NwaCegarLoop]: 475 mSDtfsCounter, 1 mSDsluCounter, 1413 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1888 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:06:37,049 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1888 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:06:37,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2024-11-24 01:06:37,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 642. [2024-11-24 01:06:37,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 495 states have (on average 1.5575757575757576) internal successors, (771), 503 states have internal predecessors, (771), 104 states have call successors, (104), 39 states have call predecessors, (104), 42 states have return successors, (122), 102 states have call predecessors, (122), 103 states have call successors, (122) [2024-11-24 01:06:37,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 997 transitions. [2024-11-24 01:06:37,093 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 997 transitions. Word has length 149 [2024-11-24 01:06:37,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:06:37,094 INFO L471 AbstractCegarLoop]: Abstraction has 642 states and 997 transitions. [2024-11-24 01:06:37,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 23.0) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-24 01:06:37,094 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 997 transitions. [2024-11-24 01:06:37,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-24 01:06:37,098 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:06:37,099 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:06:37,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 01:06:37,099 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:06:37,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:06:37,100 INFO L85 PathProgramCache]: Analyzing trace with hash 393874420, now seen corresponding path program 1 times [2024-11-24 01:06:37,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:06:37,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97912758] [2024-11-24 01:06:37,100 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:06:37,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:06:37,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:06:37,323 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-24 01:06:37,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:06:37,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97912758] [2024-11-24 01:06:37,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97912758] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:06:37,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:06:37,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 01:06:37,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299827692] [2024-11-24 01:06:37,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:06:37,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 01:06:37,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:06:37,325 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 01:06:37,325 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:06:37,325 INFO L87 Difference]: Start difference. First operand 642 states and 997 transitions. Second operand has 8 states, 7 states have (on average 13.714285714285714) internal successors, (96), 8 states have internal predecessors, (96), 4 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-24 01:06:37,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:06:37,513 INFO L93 Difference]: Finished difference Result 1244 states and 1937 transitions. [2024-11-24 01:06:37,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 01:06:37,514 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.714285714285714) internal successors, (96), 8 states have internal predecessors, (96), 4 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 150 [2024-11-24 01:06:37,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:06:37,519 INFO L225 Difference]: With dead ends: 1244 [2024-11-24 01:06:37,519 INFO L226 Difference]: Without dead ends: 646 [2024-11-24 01:06:37,521 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:06:37,522 INFO L435 NwaCegarLoop]: 465 mSDtfsCounter, 7 mSDsluCounter, 2761 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 3226 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:06:37,522 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 3226 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:06:37,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2024-11-24 01:06:37,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 644. [2024-11-24 01:06:37,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 644 states, 497 states have (on average 1.5553319919517103) internal successors, (773), 504 states have internal predecessors, (773), 104 states have call successors, (104), 40 states have call predecessors, (104), 42 states have return successors, (120), 102 states have call predecessors, (120), 103 states have call successors, (120) [2024-11-24 01:06:37,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 997 transitions. [2024-11-24 01:06:37,565 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 997 transitions. Word has length 150 [2024-11-24 01:06:37,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:06:37,565 INFO L471 AbstractCegarLoop]: Abstraction has 644 states and 997 transitions. [2024-11-24 01:06:37,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.714285714285714) internal successors, (96), 8 states have internal predecessors, (96), 4 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-24 01:06:37,566 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 997 transitions. [2024-11-24 01:06:37,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-24 01:06:37,570 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:06:37,570 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:06:37,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 01:06:37,571 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:06:37,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:06:37,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1101872897, now seen corresponding path program 2 times [2024-11-24 01:06:37,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:06:37,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678326222] [2024-11-24 01:06:37,571 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:06:37,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:06:37,611 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-24 01:06:37,611 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:06:37,854 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-24 01:06:37,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:06:37,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678326222] [2024-11-24 01:06:37,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678326222] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:06:37,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:06:37,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 01:06:37,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655713246] [2024-11-24 01:06:37,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:06:37,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 01:06:37,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:06:37,856 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 01:06:37,856 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:06:37,857 INFO L87 Difference]: Start difference. First operand 644 states and 997 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 3 states have call successors, (20), 1 states have call predecessors, (20), 3 states have return successors, (18), 5 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-24 01:06:38,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:06:38,062 INFO L93 Difference]: Finished difference Result 865 states and 1311 transitions. [2024-11-24 01:06:38,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 01:06:38,063 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 3 states have call successors, (20), 1 states have call predecessors, (20), 3 states have return successors, (18), 5 states have call predecessors, (18), 3 states have call successors, (18) Word has length 151 [2024-11-24 01:06:38,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:06:38,068 INFO L225 Difference]: With dead ends: 865 [2024-11-24 01:06:38,069 INFO L226 Difference]: Without dead ends: 692 [2024-11-24 01:06:38,070 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:06:38,072 INFO L435 NwaCegarLoop]: 519 mSDtfsCounter, 40 mSDsluCounter, 3562 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 4081 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:06:38,072 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 4081 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:06:38,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 692 states. [2024-11-24 01:06:38,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 692 to 683. [2024-11-24 01:06:38,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 683 states, 521 states have (on average 1.5470249520153552) internal successors, (806), 531 states have internal predecessors, (806), 118 states have call successors, (118), 40 states have call predecessors, (118), 43 states have return successors, (138), 115 states have call predecessors, (138), 117 states have call successors, (138) [2024-11-24 01:06:38,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 683 states to 683 states and 1062 transitions. [2024-11-24 01:06:38,130 INFO L78 Accepts]: Start accepts. Automaton has 683 states and 1062 transitions. Word has length 151 [2024-11-24 01:06:38,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:06:38,132 INFO L471 AbstractCegarLoop]: Abstraction has 683 states and 1062 transitions. [2024-11-24 01:06:38,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 3 states have call successors, (20), 1 states have call predecessors, (20), 3 states have return successors, (18), 5 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-24 01:06:38,133 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states and 1062 transitions. [2024-11-24 01:06:38,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-24 01:06:38,138 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:06:38,138 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:06:38,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 01:06:38,139 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:06:38,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:06:38,139 INFO L85 PathProgramCache]: Analyzing trace with hash 868450852, now seen corresponding path program 1 times [2024-11-24 01:06:38,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:06:38,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028559104] [2024-11-24 01:06:38,140 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:06:38,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:06:38,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:06:38,384 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-24 01:06:38,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:06:38,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028559104] [2024-11-24 01:06:38,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028559104] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:06:38,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:06:38,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 01:06:38,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184311861] [2024-11-24 01:06:38,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:06:38,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 01:06:38,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:06:38,386 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 01:06:38,386 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:06:38,387 INFO L87 Difference]: Start difference. First operand 683 states and 1062 transitions. Second operand has 8 states, 7 states have (on average 14.285714285714286) internal successors, (100), 8 states have internal predecessors, (100), 4 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-24 01:06:38,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:06:38,599 INFO L93 Difference]: Finished difference Result 1335 states and 2086 transitions. [2024-11-24 01:06:38,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 01:06:38,600 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 14.285714285714286) internal successors, (100), 8 states have internal predecessors, (100), 4 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 152 [2024-11-24 01:06:38,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:06:38,606 INFO L225 Difference]: With dead ends: 1335 [2024-11-24 01:06:38,606 INFO L226 Difference]: Without dead ends: 693 [2024-11-24 01:06:38,608 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:06:38,610 INFO L435 NwaCegarLoop]: 467 mSDtfsCounter, 5 mSDsluCounter, 2773 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 3240 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:06:38,610 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 3240 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:06:38,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2024-11-24 01:06:38,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 691. [2024-11-24 01:06:38,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 691 states, 527 states have (on average 1.540796963946869) internal successors, (812), 538 states have internal predecessors, (812), 118 states have call successors, (118), 41 states have call predecessors, (118), 45 states have return successors, (145), 115 states have call predecessors, (145), 117 states have call successors, (145) [2024-11-24 01:06:38,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 1075 transitions. [2024-11-24 01:06:38,664 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 1075 transitions. Word has length 152 [2024-11-24 01:06:38,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:06:38,665 INFO L471 AbstractCegarLoop]: Abstraction has 691 states and 1075 transitions. [2024-11-24 01:06:38,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 14.285714285714286) internal successors, (100), 8 states have internal predecessors, (100), 4 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-24 01:06:38,665 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 1075 transitions. [2024-11-24 01:06:38,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-24 01:06:38,671 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:06:38,671 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:06:38,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 01:06:38,671 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:06:38,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:06:38,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1766406391, now seen corresponding path program 1 times [2024-11-24 01:06:38,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:06:38,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111275912] [2024-11-24 01:06:38,672 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:06:38,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:06:38,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:06:38,891 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-24 01:06:38,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:06:38,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111275912] [2024-11-24 01:06:38,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111275912] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:06:38,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1506544254] [2024-11-24 01:06:38,892 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:06:38,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:06:38,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4273c5c2-1e7d-4bdf-939c-ce87a1d092f3/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:06:38,894 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4273c5c2-1e7d-4bdf-939c-ce87a1d092f3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:06:38,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4273c5c2-1e7d-4bdf-939c-ce87a1d092f3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-24 01:06:39,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:06:39,308 INFO L256 TraceCheckSpWp]: Trace formula consists of 1158 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-24 01:06:39,315 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:06:39,379 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-24 01:06:39,383 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:06:39,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1506544254] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:06:39,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:06:39,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-24 01:06:39,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930750965] [2024-11-24 01:06:39,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:06:39,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:06:39,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:06:39,384 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:06:39,385 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:06:39,385 INFO L87 Difference]: Start difference. First operand 691 states and 1075 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-24 01:06:39,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:06:39,488 INFO L93 Difference]: Finished difference Result 1180 states and 1817 transitions. [2024-11-24 01:06:39,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:06:39,488 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 154 [2024-11-24 01:06:39,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:06:39,493 INFO L225 Difference]: With dead ends: 1180 [2024-11-24 01:06:39,494 INFO L226 Difference]: Without dead ends: 697 [2024-11-24 01:06:39,495 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:06:39,497 INFO L435 NwaCegarLoop]: 474 mSDtfsCounter, 1 mSDsluCounter, 1404 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1878 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:06:39,498 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1878 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:06:39,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2024-11-24 01:06:39,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 693. [2024-11-24 01:06:39,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 693 states, 528 states have (on average 1.5397727272727273) internal successors, (813), 540 states have internal predecessors, (813), 118 states have call successors, (118), 41 states have call predecessors, (118), 46 states have return successors, (147), 115 states have call predecessors, (147), 117 states have call successors, (147) [2024-11-24 01:06:39,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 1078 transitions. [2024-11-24 01:06:39,553 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 1078 transitions. Word has length 154 [2024-11-24 01:06:39,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:06:39,554 INFO L471 AbstractCegarLoop]: Abstraction has 693 states and 1078 transitions. [2024-11-24 01:06:39,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-24 01:06:39,554 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 1078 transitions. [2024-11-24 01:06:39,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-24 01:06:39,559 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:06:39,559 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:06:39,570 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4273c5c2-1e7d-4bdf-939c-ce87a1d092f3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-24 01:06:39,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4273c5c2-1e7d-4bdf-939c-ce87a1d092f3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:06:39,760 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:06:39,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:06:39,761 INFO L85 PathProgramCache]: Analyzing trace with hash 53693046, now seen corresponding path program 1 times [2024-11-24 01:06:39,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:06:39,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339418334] [2024-11-24 01:06:39,761 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:06:39,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:06:39,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:06:39,938 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-24 01:06:39,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:06:39,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339418334] [2024-11-24 01:06:39,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339418334] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:06:39,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [239588358] [2024-11-24 01:06:39,939 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:06:39,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:06:39,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4273c5c2-1e7d-4bdf-939c-ce87a1d092f3/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:06:39,941 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4273c5c2-1e7d-4bdf-939c-ce87a1d092f3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:06:39,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4273c5c2-1e7d-4bdf-939c-ce87a1d092f3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-24 01:06:40,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:06:40,335 INFO L256 TraceCheckSpWp]: Trace formula consists of 1157 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 01:06:40,339 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:06:40,375 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-24 01:06:40,376 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:06:40,490 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-24 01:06:40,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [239588358] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:06:40,491 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:06:40,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-24 01:06:40,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535332452] [2024-11-24 01:06:40,491 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:06:40,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 01:06:40,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:06:40,493 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 01:06:40,493 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:06:40,493 INFO L87 Difference]: Start difference. First operand 693 states and 1078 transitions. Second operand has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 7 states have internal predecessors, (137), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2024-11-24 01:06:40,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:06:40,712 INFO L93 Difference]: Finished difference Result 1611 states and 2612 transitions. [2024-11-24 01:06:40,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:06:40,713 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 7 states have internal predecessors, (137), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 153 [2024-11-24 01:06:40,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:06:40,723 INFO L225 Difference]: With dead ends: 1611 [2024-11-24 01:06:40,724 INFO L226 Difference]: Without dead ends: 1317 [2024-11-24 01:06:40,726 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 303 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:06:40,726 INFO L435 NwaCegarLoop]: 517 mSDtfsCounter, 384 mSDsluCounter, 1669 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 2186 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:06:40,727 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [429 Valid, 2186 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:06:40,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1317 states. [2024-11-24 01:06:40,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1317 to 1287. [2024-11-24 01:06:40,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1287 states, 994 states have (on average 1.6066398390342052) internal successors, (1597), 1006 states have internal predecessors, (1597), 246 states have call successors, (246), 41 states have call predecessors, (246), 46 states have return successors, (300), 243 states have call predecessors, (300), 245 states have call successors, (300) [2024-11-24 01:06:40,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1287 states to 1287 states and 2143 transitions. [2024-11-24 01:06:40,863 INFO L78 Accepts]: Start accepts. Automaton has 1287 states and 2143 transitions. Word has length 153 [2024-11-24 01:06:40,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:06:40,864 INFO L471 AbstractCegarLoop]: Abstraction has 1287 states and 2143 transitions. [2024-11-24 01:06:40,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 7 states have internal predecessors, (137), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2024-11-24 01:06:40,864 INFO L276 IsEmpty]: Start isEmpty. Operand 1287 states and 2143 transitions. [2024-11-24 01:06:40,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-24 01:06:40,878 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:06:40,878 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:06:40,889 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4273c5c2-1e7d-4bdf-939c-ce87a1d092f3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-24 01:06:41,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4273c5c2-1e7d-4bdf-939c-ce87a1d092f3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-24 01:06:41,082 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:06:41,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:06:41,084 INFO L85 PathProgramCache]: Analyzing trace with hash 478729342, now seen corresponding path program 1 times [2024-11-24 01:06:41,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:06:41,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847205143] [2024-11-24 01:06:41,084 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:06:41,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:06:41,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:06:41,203 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-24 01:06:41,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:06:41,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847205143] [2024-11-24 01:06:41,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847205143] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:06:41,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:06:41,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:06:41,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118857813] [2024-11-24 01:06:41,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:06:41,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:06:41,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:06:41,208 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:06:41,209 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:06:41,209 INFO L87 Difference]: Start difference. First operand 1287 states and 2143 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-24 01:06:41,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:06:41,355 INFO L93 Difference]: Finished difference Result 3043 states and 5149 transitions. [2024-11-24 01:06:41,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:06:41,356 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 160 [2024-11-24 01:06:41,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:06:41,373 INFO L225 Difference]: With dead ends: 3043 [2024-11-24 01:06:41,373 INFO L226 Difference]: Without dead ends: 1883 [2024-11-24 01:06:41,379 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:06:41,382 INFO L435 NwaCegarLoop]: 492 mSDtfsCounter, 97 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 969 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:06:41,382 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 969 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:06:41,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1883 states. [2024-11-24 01:06:41,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1883 to 1873. [2024-11-24 01:06:41,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1873 states, 1452 states have (on average 1.6205234159779613) internal successors, (2353), 1464 states have internal predecessors, (2353), 374 states have call successors, (374), 41 states have call predecessors, (374), 46 states have return successors, (453), 371 states have call predecessors, (453), 373 states have call successors, (453) [2024-11-24 01:06:41,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1873 states to 1873 states and 3180 transitions. [2024-11-24 01:06:41,541 INFO L78 Accepts]: Start accepts. Automaton has 1873 states and 3180 transitions. Word has length 160 [2024-11-24 01:06:41,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:06:41,542 INFO L471 AbstractCegarLoop]: Abstraction has 1873 states and 3180 transitions. [2024-11-24 01:06:41,542 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-24 01:06:41,542 INFO L276 IsEmpty]: Start isEmpty. Operand 1873 states and 3180 transitions. [2024-11-24 01:06:41,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-24 01:06:41,557 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:06:41,558 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:06:41,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-24 01:06:41,559 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:06:41,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:06:41,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1276360014, now seen corresponding path program 1 times [2024-11-24 01:06:41,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:06:41,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019951572] [2024-11-24 01:06:41,560 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:06:41,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:06:41,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:06:41,670 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-24 01:06:41,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:06:41,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019951572] [2024-11-24 01:06:41,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019951572] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:06:41,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:06:41,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:06:41,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901740382] [2024-11-24 01:06:41,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:06:41,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:06:41,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:06:41,672 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:06:41,672 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:06:41,672 INFO L87 Difference]: Start difference. First operand 1873 states and 3180 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-24 01:06:41,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:06:41,808 INFO L93 Difference]: Finished difference Result 4439 states and 7598 transitions. [2024-11-24 01:06:41,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:06:41,809 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 161 [2024-11-24 01:06:41,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:06:41,829 INFO L225 Difference]: With dead ends: 4439 [2024-11-24 01:06:41,830 INFO L226 Difference]: Without dead ends: 2795 [2024-11-24 01:06:41,837 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:06:41,838 INFO L435 NwaCegarLoop]: 482 mSDtfsCounter, 95 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 956 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:06:41,838 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 956 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:06:41,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2795 states. [2024-11-24 01:06:42,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2795 to 2785. [2024-11-24 01:06:42,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2785 states, 2174 states have (on average 1.6297148114075437) internal successors, (3543), 2186 states have internal predecessors, (3543), 564 states have call successors, (564), 41 states have call predecessors, (564), 46 states have return successors, (659), 561 states have call predecessors, (659), 563 states have call successors, (659) [2024-11-24 01:06:42,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2785 states to 2785 states and 4766 transitions. [2024-11-24 01:06:42,090 INFO L78 Accepts]: Start accepts. Automaton has 2785 states and 4766 transitions. Word has length 161 [2024-11-24 01:06:42,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:06:42,090 INFO L471 AbstractCegarLoop]: Abstraction has 2785 states and 4766 transitions. [2024-11-24 01:06:42,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-24 01:06:42,091 INFO L276 IsEmpty]: Start isEmpty. Operand 2785 states and 4766 transitions. [2024-11-24 01:06:42,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-24 01:06:42,115 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:06:42,115 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:06:42,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-24 01:06:42,116 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:06:42,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:06:42,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1336241824, now seen corresponding path program 1 times [2024-11-24 01:06:42,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:06:42,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533862172] [2024-11-24 01:06:42,118 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:06:42,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:06:42,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:06:42,206 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-24 01:06:42,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:06:42,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533862172] [2024-11-24 01:06:42,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533862172] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:06:42,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:06:42,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:06:42,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916601420] [2024-11-24 01:06:42,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:06:42,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:06:42,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:06:42,208 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:06:42,209 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:06:42,209 INFO L87 Difference]: Start difference. First operand 2785 states and 4766 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-24 01:06:42,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:06:42,389 INFO L93 Difference]: Finished difference Result 6477 states and 11190 transitions. [2024-11-24 01:06:42,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:06:42,390 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 162 [2024-11-24 01:06:42,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:06:42,418 INFO L225 Difference]: With dead ends: 6477 [2024-11-24 01:06:42,418 INFO L226 Difference]: Without dead ends: 4163 [2024-11-24 01:06:42,429 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:06:42,430 INFO L435 NwaCegarLoop]: 480 mSDtfsCounter, 93 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 951 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:06:42,430 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 951 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:06:42,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4163 states. [2024-11-24 01:06:42,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4163 to 4153. [2024-11-24 01:06:42,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4153 states, 3296 states have (on average 1.6374393203883495) internal successors, (5397), 3308 states have internal predecessors, (5397), 810 states have call successors, (810), 41 states have call predecessors, (810), 46 states have return successors, (955), 807 states have call predecessors, (955), 809 states have call successors, (955) [2024-11-24 01:06:42,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4153 states to 4153 states and 7162 transitions. [2024-11-24 01:06:42,763 INFO L78 Accepts]: Start accepts. Automaton has 4153 states and 7162 transitions. Word has length 162 [2024-11-24 01:06:42,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:06:42,763 INFO L471 AbstractCegarLoop]: Abstraction has 4153 states and 7162 transitions. [2024-11-24 01:06:42,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-24 01:06:42,764 INFO L276 IsEmpty]: Start isEmpty. Operand 4153 states and 7162 transitions. [2024-11-24 01:06:42,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-24 01:06:42,793 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:06:42,794 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:06:42,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-24 01:06:42,794 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:06:42,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:06:42,794 INFO L85 PathProgramCache]: Analyzing trace with hash -1976998737, now seen corresponding path program 1 times [2024-11-24 01:06:42,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:06:42,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405146952] [2024-11-24 01:06:42,795 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:06:42,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:06:42,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:06:42,918 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-24 01:06:42,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:06:42,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405146952] [2024-11-24 01:06:42,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405146952] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:06:42,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:06:42,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:06:42,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371722633] [2024-11-24 01:06:42,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:06:42,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:06:42,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:06:42,920 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:06:42,920 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:06:42,921 INFO L87 Difference]: Start difference. First operand 4153 states and 7162 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-24 01:06:43,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:06:43,178 INFO L93 Difference]: Finished difference Result 9623 states and 16744 transitions. [2024-11-24 01:06:43,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:06:43,178 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 163 [2024-11-24 01:06:43,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:06:43,227 INFO L225 Difference]: With dead ends: 9623 [2024-11-24 01:06:43,228 INFO L226 Difference]: Without dead ends: 6335 [2024-11-24 01:06:43,243 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:06:43,244 INFO L435 NwaCegarLoop]: 480 mSDtfsCounter, 91 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 951 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:06:43,244 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 951 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:06:43,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6335 states. [2024-11-24 01:06:43,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6335 to 6325. [2024-11-24 01:06:43,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6325 states, 5110 states have (on average 1.6424657534246576) internal successors, (8393), 5122 states have internal predecessors, (8393), 1168 states have call successors, (1168), 41 states have call predecessors, (1168), 46 states have return successors, (1396), 1165 states have call predecessors, (1396), 1167 states have call successors, (1396) [2024-11-24 01:06:43,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6325 states to 6325 states and 10957 transitions. [2024-11-24 01:06:43,719 INFO L78 Accepts]: Start accepts. Automaton has 6325 states and 10957 transitions. Word has length 163 [2024-11-24 01:06:43,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:06:43,722 INFO L471 AbstractCegarLoop]: Abstraction has 6325 states and 10957 transitions. [2024-11-24 01:06:43,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-24 01:06:43,723 INFO L276 IsEmpty]: Start isEmpty. Operand 6325 states and 10957 transitions. [2024-11-24 01:06:43,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-24 01:06:43,763 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:06:43,763 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:06:43,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-24 01:06:43,763 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:06:43,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:06:43,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1547385963, now seen corresponding path program 1 times [2024-11-24 01:06:43,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:06:43,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579778891] [2024-11-24 01:06:43,764 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:06:43,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:06:43,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:06:43,925 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-24 01:06:43,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:06:43,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579778891] [2024-11-24 01:06:43,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579778891] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:06:43,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1104046752] [2024-11-24 01:06:43,925 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:06:43,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:06:43,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4273c5c2-1e7d-4bdf-939c-ce87a1d092f3/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:06:43,928 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4273c5c2-1e7d-4bdf-939c-ce87a1d092f3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:06:43,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4273c5c2-1e7d-4bdf-939c-ce87a1d092f3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-24 01:06:44,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:06:44,334 INFO L256 TraceCheckSpWp]: Trace formula consists of 1178 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 01:06:44,339 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:06:44,379 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-24 01:06:44,380 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:06:44,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1104046752] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:06:44,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:06:44,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-24 01:06:44,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652062390] [2024-11-24 01:06:44,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:06:44,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:06:44,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:06:44,384 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:06:44,384 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:06:44,385 INFO L87 Difference]: Start difference. First operand 6325 states and 10957 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-24 01:06:44,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:06:44,863 INFO L93 Difference]: Finished difference Result 15305 states and 26679 transitions. [2024-11-24 01:06:44,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:06:44,864 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 166 [2024-11-24 01:06:44,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:06:44,954 INFO L225 Difference]: With dead ends: 15305 [2024-11-24 01:06:44,954 INFO L226 Difference]: Without dead ends: 10287 [2024-11-24 01:06:44,980 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:06:44,981 INFO L435 NwaCegarLoop]: 498 mSDtfsCounter, 89 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 977 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:06:44,981 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 977 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:06:44,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10287 states. [2024-11-24 01:06:45,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10287 to 10277. [2024-11-24 01:06:45,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10277 states, 8310 states have (on average 1.6350180505415162) internal successors, (13587), 8322 states have internal predecessors, (13587), 1920 states have call successors, (1920), 41 states have call predecessors, (1920), 46 states have return successors, (2292), 1917 states have call predecessors, (2292), 1919 states have call successors, (2292) [2024-11-24 01:06:45,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10277 states to 10277 states and 17799 transitions. [2024-11-24 01:06:45,729 INFO L78 Accepts]: Start accepts. Automaton has 10277 states and 17799 transitions. Word has length 166 [2024-11-24 01:06:45,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:06:45,729 INFO L471 AbstractCegarLoop]: Abstraction has 10277 states and 17799 transitions. [2024-11-24 01:06:45,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-24 01:06:45,730 INFO L276 IsEmpty]: Start isEmpty. Operand 10277 states and 17799 transitions. [2024-11-24 01:06:45,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-24 01:06:45,787 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:06:45,787 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:06:45,798 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4273c5c2-1e7d-4bdf-939c-ce87a1d092f3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-24 01:06:45,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4273c5c2-1e7d-4bdf-939c-ce87a1d092f3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-24 01:06:45,992 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:06:45,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:06:45,993 INFO L85 PathProgramCache]: Analyzing trace with hash 584344755, now seen corresponding path program 1 times [2024-11-24 01:06:45,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:06:45,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106170067] [2024-11-24 01:06:45,993 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:06:45,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:06:46,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:06:46,080 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-24 01:06:46,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:06:46,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106170067] [2024-11-24 01:06:46,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106170067] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:06:46,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:06:46,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:06:46,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803336536] [2024-11-24 01:06:46,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:06:46,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:06:46,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:06:46,082 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:06:46,083 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:06:46,087 INFO L87 Difference]: Start difference. First operand 10277 states and 17799 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-24 01:06:46,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:06:46,629 INFO L93 Difference]: Finished difference Result 25323 states and 44081 transitions. [2024-11-24 01:06:46,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:06:46,631 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 165 [2024-11-24 01:06:46,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:06:46,715 INFO L225 Difference]: With dead ends: 25323 [2024-11-24 01:06:46,715 INFO L226 Difference]: Without dead ends: 17075 [2024-11-24 01:06:46,749 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:06:46,750 INFO L435 NwaCegarLoop]: 482 mSDtfsCounter, 87 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 956 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:06:46,750 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 956 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:06:46,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17075 states. [2024-11-24 01:06:47,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17075 to 17065. [2024-11-24 01:06:47,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17065 states, 13886 states have (on average 1.632363531614576) internal successors, (22667), 13898 states have internal predecessors, (22667), 3132 states have call successors, (3132), 41 states have call predecessors, (3132), 46 states have return successors, (3693), 3129 states have call predecessors, (3693), 3131 states have call successors, (3693) [2024-11-24 01:06:47,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17065 states to 17065 states and 29492 transitions. [2024-11-24 01:06:47,748 INFO L78 Accepts]: Start accepts. Automaton has 17065 states and 29492 transitions. Word has length 165 [2024-11-24 01:06:47,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:06:47,749 INFO L471 AbstractCegarLoop]: Abstraction has 17065 states and 29492 transitions. [2024-11-24 01:06:47,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-24 01:06:47,750 INFO L276 IsEmpty]: Start isEmpty. Operand 17065 states and 29492 transitions. [2024-11-24 01:06:47,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-24 01:06:47,836 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:06:47,837 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:06:47,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-24 01:06:47,837 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:06:47,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:06:47,838 INFO L85 PathProgramCache]: Analyzing trace with hash -1519163369, now seen corresponding path program 1 times [2024-11-24 01:06:47,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:06:47,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582289366] [2024-11-24 01:06:47,839 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:06:47,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:06:47,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:06:47,984 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-24 01:06:47,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:06:47,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582289366] [2024-11-24 01:06:47,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582289366] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:06:47,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1663930726] [2024-11-24 01:06:47,985 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:06:47,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:06:47,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4273c5c2-1e7d-4bdf-939c-ce87a1d092f3/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:06:47,988 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4273c5c2-1e7d-4bdf-939c-ce87a1d092f3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:06:47,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4273c5c2-1e7d-4bdf-939c-ce87a1d092f3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-24 01:06:48,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:06:48,510 INFO L256 TraceCheckSpWp]: Trace formula consists of 1188 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 01:06:48,518 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:06:48,562 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-24 01:06:48,563 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:06:48,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1663930726] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:06:48,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:06:48,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-24 01:06:48,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910244589] [2024-11-24 01:06:48,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:06:48,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:06:48,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:06:48,567 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:06:48,567 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:06:48,568 INFO L87 Difference]: Start difference. First operand 17065 states and 29492 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-24 01:06:49,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:06:49,946 INFO L93 Difference]: Finished difference Result 44165 states and 76631 transitions. [2024-11-24 01:06:49,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:06:49,946 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 168 [2024-11-24 01:06:49,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:06:50,195 INFO L225 Difference]: With dead ends: 44165 [2024-11-24 01:06:50,195 INFO L226 Difference]: Without dead ends: 29929 [2024-11-24 01:06:50,229 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:06:50,230 INFO L435 NwaCegarLoop]: 495 mSDtfsCounter, 85 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 975 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:06:50,230 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 975 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:06:50,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29929 states. [2024-11-24 01:06:51,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29929 to 29919. [2024-11-24 01:06:51,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29919 states, 24334 states have (on average 1.62188707158708) internal successors, (39467), 24346 states have internal predecessors, (39467), 5538 states have call successors, (5538), 41 states have call predecessors, (5538), 46 states have return successors, (6524), 5535 states have call predecessors, (6524), 5537 states have call successors, (6524) [2024-11-24 01:06:51,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29919 states to 29919 states and 51529 transitions. [2024-11-24 01:06:51,806 INFO L78 Accepts]: Start accepts. Automaton has 29919 states and 51529 transitions. Word has length 168 [2024-11-24 01:06:51,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:06:51,807 INFO L471 AbstractCegarLoop]: Abstraction has 29919 states and 51529 transitions. [2024-11-24 01:06:51,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-24 01:06:51,807 INFO L276 IsEmpty]: Start isEmpty. Operand 29919 states and 51529 transitions. [2024-11-24 01:06:51,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-24 01:06:51,923 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:06:51,923 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:06:51,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4273c5c2-1e7d-4bdf-939c-ce87a1d092f3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-24 01:06:52,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4273c5c2-1e7d-4bdf-939c-ce87a1d092f3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:06:52,124 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:06:52,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:06:52,125 INFO L85 PathProgramCache]: Analyzing trace with hash 2020539099, now seen corresponding path program 1 times [2024-11-24 01:06:52,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:06:52,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367941639] [2024-11-24 01:06:52,126 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:06:52,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:06:52,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:06:52,265 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-24 01:06:52,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:06:52,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367941639] [2024-11-24 01:06:52,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367941639] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:06:52,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1947450290] [2024-11-24 01:06:52,266 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:06:52,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:06:52,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4273c5c2-1e7d-4bdf-939c-ce87a1d092f3/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:06:52,268 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4273c5c2-1e7d-4bdf-939c-ce87a1d092f3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:06:52,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4273c5c2-1e7d-4bdf-939c-ce87a1d092f3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-24 01:06:52,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:06:52,689 INFO L256 TraceCheckSpWp]: Trace formula consists of 1193 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 01:06:52,693 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:06:52,740 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-24 01:06:52,740 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:06:52,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1947450290] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:06:52,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:06:52,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-24 01:06:52,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034139810] [2024-11-24 01:06:52,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:06:52,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:06:52,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:06:52,742 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:06:52,742 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:06:52,742 INFO L87 Difference]: Start difference. First operand 29919 states and 51529 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-24 01:06:54,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:06:54,762 INFO L93 Difference]: Finished difference Result 79197 states and 137040 transitions. [2024-11-24 01:06:54,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:06:54,763 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 169 [2024-11-24 01:06:54,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:06:55,093 INFO L225 Difference]: With dead ends: 79197 [2024-11-24 01:06:55,093 INFO L226 Difference]: Without dead ends: 53263 [2024-11-24 01:06:55,199 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:06:55,202 INFO L435 NwaCegarLoop]: 480 mSDtfsCounter, 83 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 954 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:06:55,202 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 954 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:06:55,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53263 states. [2024-11-24 01:06:57,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53263 to 53253. [2024-11-24 01:06:57,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53253 states, 43590 states have (on average 1.616815783436568) internal successors, (70477), 43602 states have internal predecessors, (70477), 9616 states have call successors, (9616), 41 states have call predecessors, (9616), 46 states have return successors, (11416), 9613 states have call predecessors, (11416), 9615 states have call successors, (11416) [2024-11-24 01:06:58,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53253 states to 53253 states and 91509 transitions. [2024-11-24 01:06:58,282 INFO L78 Accepts]: Start accepts. Automaton has 53253 states and 91509 transitions. Word has length 169 [2024-11-24 01:06:58,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:06:58,283 INFO L471 AbstractCegarLoop]: Abstraction has 53253 states and 91509 transitions. [2024-11-24 01:06:58,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-24 01:06:58,283 INFO L276 IsEmpty]: Start isEmpty. Operand 53253 states and 91509 transitions. [2024-11-24 01:06:58,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-24 01:06:58,474 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:06:58,475 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:06:58,487 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4273c5c2-1e7d-4bdf-939c-ce87a1d092f3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-24 01:06:58,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4273c5c2-1e7d-4bdf-939c-ce87a1d092f3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:06:58,676 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:06:58,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:06:58,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1964960960, now seen corresponding path program 1 times [2024-11-24 01:06:58,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:06:58,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264780076] [2024-11-24 01:06:58,677 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:06:58,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:06:58,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:06:58,760 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-24 01:06:58,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:06:58,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264780076] [2024-11-24 01:06:58,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264780076] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:06:58,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:06:58,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:06:58,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565622614] [2024-11-24 01:06:58,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:06:58,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:06:58,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:06:58,763 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:06:58,763 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:06:58,763 INFO L87 Difference]: Start difference. First operand 53253 states and 91509 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-24 01:07:01,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:07:01,942 INFO L93 Difference]: Finished difference Result 145101 states and 249724 transitions. [2024-11-24 01:07:01,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:07:01,943 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 168 [2024-11-24 01:07:01,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:07:02,371 INFO L225 Difference]: With dead ends: 145101 [2024-11-24 01:07:02,371 INFO L226 Difference]: Without dead ends: 97223 [2024-11-24 01:07:02,494 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:07:02,496 INFO L435 NwaCegarLoop]: 490 mSDtfsCounter, 81 mSDsluCounter, 475 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 965 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:07:02,496 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 965 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:07:02,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97223 states. [2024-11-24 01:07:06,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97223 to 97213. [2024-11-24 01:07:06,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97213 states, 80120 states have (on average 1.610346979530704) internal successors, (129021), 80132 states have internal predecessors, (129021), 17046 states have call successors, (17046), 41 states have call predecessors, (17046), 46 states have return successors, (19910), 17043 states have call predecessors, (19910), 17045 states have call successors, (19910) [2024-11-24 01:07:06,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97213 states to 97213 states and 165977 transitions. [2024-11-24 01:07:06,702 INFO L78 Accepts]: Start accepts. Automaton has 97213 states and 165977 transitions. Word has length 168 [2024-11-24 01:07:06,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:07:06,703 INFO L471 AbstractCegarLoop]: Abstraction has 97213 states and 165977 transitions. [2024-11-24 01:07:06,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-24 01:07:06,703 INFO L276 IsEmpty]: Start isEmpty. Operand 97213 states and 165977 transitions. [2024-11-24 01:07:06,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-24 01:07:06,967 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:07:06,967 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:07:06,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-24 01:07:06,968 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:07:06,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:07:06,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1151454459, now seen corresponding path program 1 times [2024-11-24 01:07:06,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:07:06,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662756066] [2024-11-24 01:07:06,969 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:07:06,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:07:06,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:07:07,482 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-24 01:07:07,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:07:07,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662756066] [2024-11-24 01:07:07,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662756066] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:07:07,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [623163429] [2024-11-24 01:07:07,486 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:07:07,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:07:07,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4273c5c2-1e7d-4bdf-939c-ce87a1d092f3/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:07:07,490 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4273c5c2-1e7d-4bdf-939c-ce87a1d092f3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:07:07,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4273c5c2-1e7d-4bdf-939c-ce87a1d092f3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-24 01:07:07,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:07:07,926 INFO L256 TraceCheckSpWp]: Trace formula consists of 1203 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 01:07:07,930 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:07:07,973 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-24 01:07:07,973 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:07:07,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [623163429] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:07:07,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:07:07,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-24 01:07:07,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667682435] [2024-11-24 01:07:07,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:07:07,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:07:07,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:07:07,975 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:07:07,975 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:07:07,976 INFO L87 Difference]: Start difference. First operand 97213 states and 165977 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-24 01:07:11,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:07:11,620 INFO L93 Difference]: Finished difference Result 181029 states and 309801 transitions. [2024-11-24 01:07:11,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:07:11,620 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 171 [2024-11-24 01:07:11,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:07:12,426 INFO L225 Difference]: With dead ends: 181029 [2024-11-24 01:07:12,427 INFO L226 Difference]: Without dead ends: 180735 [2024-11-24 01:07:12,503 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:07:12,505 INFO L435 NwaCegarLoop]: 489 mSDtfsCounter, 76 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:07:12,506 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 968 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:07:12,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180735 states.