./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec8_product30.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401d5c67-c017-48fd-8f88-d082b9319f37/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401d5c67-c017-48fd-8f88-d082b9319f37/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401d5c67-c017-48fd-8f88-d082b9319f37/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401d5c67-c017-48fd-8f88-d082b9319f37/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec8_product30.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401d5c67-c017-48fd-8f88-d082b9319f37/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401d5c67-c017-48fd-8f88-d082b9319f37/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 15275a4436f6ed835fc824ec788a3589ee34ef53cd98082c25cb994e481acd9a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 05:08:36,889 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 05:08:36,995 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401d5c67-c017-48fd-8f88-d082b9319f37/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 05:08:37,004 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 05:08:37,004 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 05:08:37,043 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 05:08:37,044 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 05:08:37,044 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 05:08:37,044 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 05:08:37,045 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 05:08:37,045 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 05:08:37,045 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 05:08:37,045 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 05:08:37,046 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 05:08:37,046 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 05:08:37,046 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 05:08:37,046 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 05:08:37,046 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 05:08:37,046 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 05:08:37,047 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 05:08:37,047 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 05:08:37,047 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 05:08:37,047 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 05:08:37,047 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 05:08:37,047 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 05:08:37,048 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 05:08:37,048 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 05:08:37,048 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 05:08:37,048 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 05:08:37,048 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:08:37,048 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:08:37,049 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:08:37,049 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:08:37,049 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 05:08:37,049 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:08:37,049 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:08:37,050 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:08:37,050 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:08:37,050 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 05:08:37,050 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 05:08:37,050 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 05:08:37,051 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 05:08:37,051 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 05:08:37,051 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 05:08:37,051 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 05:08:37,051 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 05:08:37,051 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 05:08:37,052 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 05:08:37,052 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_401d5c67-c017-48fd-8f88-d082b9319f37/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 15275a4436f6ed835fc824ec788a3589ee34ef53cd98082c25cb994e481acd9a [2024-11-28 05:08:37,441 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 05:08:37,456 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 05:08:37,462 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 05:08:37,465 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 05:08:37,466 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 05:08:37,468 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401d5c67-c017-48fd-8f88-d082b9319f37/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/product-lines/email_spec8_product30.cil.c [2024-11-28 05:08:40,627 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401d5c67-c017-48fd-8f88-d082b9319f37/bin/uautomizer-verify-aQ6SnzHsRB/data/85f1a03bc/ce96c72a271b46d8a97c8fac985d6ec8/FLAG13abc7f31 [2024-11-28 05:08:41,041 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 05:08:41,042 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401d5c67-c017-48fd-8f88-d082b9319f37/sv-benchmarks/c/product-lines/email_spec8_product30.cil.c [2024-11-28 05:08:41,084 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401d5c67-c017-48fd-8f88-d082b9319f37/bin/uautomizer-verify-aQ6SnzHsRB/data/85f1a03bc/ce96c72a271b46d8a97c8fac985d6ec8/FLAG13abc7f31 [2024-11-28 05:08:41,198 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401d5c67-c017-48fd-8f88-d082b9319f37/bin/uautomizer-verify-aQ6SnzHsRB/data/85f1a03bc/ce96c72a271b46d8a97c8fac985d6ec8 [2024-11-28 05:08:41,202 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 05:08:41,204 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 05:08:41,205 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 05:08:41,207 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 05:08:41,214 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 05:08:41,215 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:08:41" (1/1) ... [2024-11-28 05:08:41,216 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18eab6f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:08:41, skipping insertion in model container [2024-11-28 05:08:41,216 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:08:41" (1/1) ... [2024-11-28 05:08:41,318 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 05:08:41,712 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_401d5c67-c017-48fd-8f88-d082b9319f37/sv-benchmarks/c/product-lines/email_spec8_product30.cil.c[7858,7871] [2024-11-28 05:08:42,163 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:08:42,196 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 05:08:42,206 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] [2024-11-28 05:08:42,208 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptAutoResponder_spec.i","") [363] [2024-11-28 05:08:42,208 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [407] [2024-11-28 05:08:42,208 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [416] [2024-11-28 05:08:42,209 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [563] [2024-11-28 05:08:42,210 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [598] [2024-11-28 05:08:42,210 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [964] [2024-11-28 05:08:42,210 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1180] [2024-11-28 05:08:42,210 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1545] [2024-11-28 05:08:42,210 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1562] [2024-11-28 05:08:42,212 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2629] [2024-11-28 05:08:42,232 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_401d5c67-c017-48fd-8f88-d082b9319f37/sv-benchmarks/c/product-lines/email_spec8_product30.cil.c[7858,7871] [2024-11-28 05:08:42,380 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:08:42,430 INFO L204 MainTranslator]: Completed translation [2024-11-28 05:08:42,431 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:08:42 WrapperNode [2024-11-28 05:08:42,431 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 05:08:42,432 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 05:08:42,432 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 05:08:42,432 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 05:08:42,440 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:08:42" (1/1) ... [2024-11-28 05:08:42,464 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:08:42" (1/1) ... [2024-11-28 05:08:42,534 INFO L138 Inliner]: procedures = 132, calls = 207, calls flagged for inlining = 61, calls inlined = 51, statements flattened = 924 [2024-11-28 05:08:42,534 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 05:08:42,535 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 05:08:42,535 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 05:08:42,535 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 05:08:42,547 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:08:42" (1/1) ... [2024-11-28 05:08:42,548 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:08:42" (1/1) ... [2024-11-28 05:08:42,555 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:08:42" (1/1) ... [2024-11-28 05:08:42,580 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]. [2024-11-28 05:08:42,580 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:08:42" (1/1) ... [2024-11-28 05:08:42,580 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:08:42" (1/1) ... [2024-11-28 05:08:42,608 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:08:42" (1/1) ... [2024-11-28 05:08:42,610 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:08:42" (1/1) ... [2024-11-28 05:08:42,632 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:08:42" (1/1) ... [2024-11-28 05:08:42,640 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:08:42" (1/1) ... [2024-11-28 05:08:42,651 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:08:42" (1/1) ... [2024-11-28 05:08:42,666 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 05:08:42,667 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 05:08:42,671 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 05:08:42,672 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 05:08:42,673 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:08:42" (1/1) ... [2024-11-28 05:08:42,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:08:42,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401d5c67-c017-48fd-8f88-d082b9319f37/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:08:42,760 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401d5c67-c017-48fd-8f88-d082b9319f37/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 05:08:42,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401d5c67-c017-48fd-8f88-d082b9319f37/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 05:08:42,801 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-11-28 05:08:42,805 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-11-28 05:08:42,805 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-11-28 05:08:42,805 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-11-28 05:08:42,805 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-11-28 05:08:42,805 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-11-28 05:08:42,805 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-28 05:08:42,806 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-28 05:08:42,806 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-28 05:08:42,806 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-28 05:08:42,806 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-28 05:08:42,806 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-28 05:08:42,806 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-28 05:08:42,806 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-28 05:08:42,806 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-11-28 05:08:42,807 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-11-28 05:08:42,807 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-28 05:08:42,807 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-28 05:08:42,807 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-28 05:08:42,809 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-28 05:08:42,810 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-28 05:08:42,810 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-28 05:08:42,810 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-28 05:08:42,810 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-28 05:08:42,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 05:08:42,810 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-28 05:08:42,810 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-28 05:08:42,810 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-11-28 05:08:42,811 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-11-28 05:08:42,811 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-28 05:08:42,811 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-28 05:08:42,811 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-28 05:08:42,811 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-28 05:08:42,811 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-28 05:08:42,811 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-28 05:08:42,812 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-11-28 05:08:42,812 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-11-28 05:08:42,812 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-28 05:08:42,812 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-28 05:08:42,812 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-11-28 05:08:42,812 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-11-28 05:08:42,812 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-28 05:08:42,812 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-28 05:08:42,814 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-28 05:08:42,815 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-28 05:08:42,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 05:08:42,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 05:08:42,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 05:08:42,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-28 05:08:42,815 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-28 05:08:42,816 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-28 05:08:42,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 05:08:42,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 05:08:43,133 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 05:08:43,137 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 05:08:44,365 INFO L? ?]: Removed 432 outVars from TransFormulas that were not future-live. [2024-11-28 05:08:44,365 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 05:08:44,398 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 05:08:44,399 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 05:08:44,399 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:08:44 BoogieIcfgContainer [2024-11-28 05:08:44,401 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 05:08:44,403 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 05:08:44,405 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 05:08:44,415 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 05:08:44,415 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:08:41" (1/3) ... [2024-11-28 05:08:44,416 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50e6165c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:08:44, skipping insertion in model container [2024-11-28 05:08:44,417 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:08:42" (2/3) ... [2024-11-28 05:08:44,417 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50e6165c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:08:44, skipping insertion in model container [2024-11-28 05:08:44,419 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:08:44" (3/3) ... [2024-11-28 05:08:44,421 INFO L128 eAbstractionObserver]: Analyzing ICFG email_spec8_product30.cil.c [2024-11-28 05:08:44,437 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 05:08:44,444 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG email_spec8_product30.cil.c that has 24 procedures, 347 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 05:08:44,547 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 05:08:44,564 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;@9e4d8d0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 05:08:44,565 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 05:08:44,574 INFO L276 IsEmpty]: Start isEmpty. Operand has 347 states, 269 states have (on average 1.516728624535316) internal successors, (408), 273 states have internal predecessors, (408), 53 states have call successors, (53), 23 states have call predecessors, (53), 23 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-28 05:08:44,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-28 05:08:44,598 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:08:44,599 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:08:44,600 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:08:44,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:08:44,608 INFO L85 PathProgramCache]: Analyzing trace with hash 322907711, now seen corresponding path program 1 times [2024-11-28 05:08:44,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:08:44,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479305010] [2024-11-28 05:08:44,618 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:08:44,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:08:44,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:08:45,592 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-28 05:08:45,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:08:45,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479305010] [2024-11-28 05:08:45,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479305010] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:08:45,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [123987344] [2024-11-28 05:08:45,598 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:08:45,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:08:45,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401d5c67-c017-48fd-8f88-d082b9319f37/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:08:45,603 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401d5c67-c017-48fd-8f88-d082b9319f37/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:08:45,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401d5c67-c017-48fd-8f88-d082b9319f37/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 05:08:46,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:08:46,149 INFO L256 TraceCheckSpWp]: Trace formula consists of 1023 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 05:08:46,161 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:08:46,193 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 05:08:46,193 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:08:46,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [123987344] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:08:46,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:08:46,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 5 [2024-11-28 05:08:46,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603409880] [2024-11-28 05:08:46,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:08:46,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 05:08:46,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:08:46,234 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 05:08:46,234 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:08:46,237 INFO L87 Difference]: Start difference. First operand has 347 states, 269 states have (on average 1.516728624535316) internal successors, (408), 273 states have internal predecessors, (408), 53 states have call successors, (53), 23 states have call predecessors, (53), 23 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) Second operand has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 05:08:46,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:08:46,326 INFO L93 Difference]: Finished difference Result 541 states and 783 transitions. [2024-11-28 05:08:46,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 05:08:46,328 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 101 [2024-11-28 05:08:46,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:08:46,347 INFO L225 Difference]: With dead ends: 541 [2024-11-28 05:08:46,348 INFO L226 Difference]: Without dead ends: 340 [2024-11-28 05:08:46,358 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:08:46,361 INFO L435 NwaCegarLoop]: 510 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:08:46,361 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 510 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:08:46,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2024-11-28 05:08:46,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 340. [2024-11-28 05:08:46,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 263 states have (on average 1.5095057034220531) internal successors, (397), 266 states have internal predecessors, (397), 53 states have call successors, (53), 23 states have call predecessors, (53), 23 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-28 05:08:46,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 502 transitions. [2024-11-28 05:08:46,474 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 502 transitions. Word has length 101 [2024-11-28 05:08:46,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:08:46,477 INFO L471 AbstractCegarLoop]: Abstraction has 340 states and 502 transitions. [2024-11-28 05:08:46,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 05:08:46,478 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 502 transitions. [2024-11-28 05:08:46,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-28 05:08:46,488 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:08:46,489 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:08:46,504 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401d5c67-c017-48fd-8f88-d082b9319f37/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 05:08:46,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401d5c67-c017-48fd-8f88-d082b9319f37/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 05:08:46,690 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:08:46,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:08:46,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1624094969, now seen corresponding path program 1 times [2024-11-28 05:08:46,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:08:46,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086738896] [2024-11-28 05:08:46,691 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:08:46,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:08:46,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:08:47,111 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-28 05:08:47,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:08:47,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086738896] [2024-11-28 05:08:47,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086738896] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:08:47,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [554354316] [2024-11-28 05:08:47,112 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:08:47,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:08:47,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401d5c67-c017-48fd-8f88-d082b9319f37/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:08:47,116 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401d5c67-c017-48fd-8f88-d082b9319f37/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:08:47,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401d5c67-c017-48fd-8f88-d082b9319f37/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 05:08:47,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:08:47,592 INFO L256 TraceCheckSpWp]: Trace formula consists of 1023 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 05:08:47,603 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:08:47,668 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 05:08:47,668 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:08:47,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [554354316] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:08:47,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:08:47,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-28 05:08:47,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246809534] [2024-11-28 05:08:47,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:08:47,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:08:47,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:08:47,671 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:08:47,671 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:08:47,671 INFO L87 Difference]: Start difference. First operand 340 states and 502 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 05:08:47,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:08:47,753 INFO L93 Difference]: Finished difference Result 530 states and 763 transitions. [2024-11-28 05:08:47,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:08:47,758 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 101 [2024-11-28 05:08:47,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:08:47,766 INFO L225 Difference]: With dead ends: 530 [2024-11-28 05:08:47,766 INFO L226 Difference]: Without dead ends: 342 [2024-11-28 05:08:47,768 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:08:47,769 INFO L435 NwaCegarLoop]: 500 mSDtfsCounter, 1 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 998 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:08:47,769 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 998 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:08:47,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2024-11-28 05:08:47,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 341. [2024-11-28 05:08:47,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 264 states have (on average 1.5075757575757576) internal successors, (398), 267 states have internal predecessors, (398), 53 states have call successors, (53), 23 states have call predecessors, (53), 23 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-28 05:08:47,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 503 transitions. [2024-11-28 05:08:47,823 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 503 transitions. Word has length 101 [2024-11-28 05:08:47,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:08:47,827 INFO L471 AbstractCegarLoop]: Abstraction has 341 states and 503 transitions. [2024-11-28 05:08:47,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 05:08:47,827 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 503 transitions. [2024-11-28 05:08:47,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-28 05:08:47,833 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:08:47,833 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:08:47,846 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401d5c67-c017-48fd-8f88-d082b9319f37/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 05:08:48,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401d5c67-c017-48fd-8f88-d082b9319f37/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:08:48,034 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:08:48,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:08:48,035 INFO L85 PathProgramCache]: Analyzing trace with hash -420042746, now seen corresponding path program 1 times [2024-11-28 05:08:48,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:08:48,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124619344] [2024-11-28 05:08:48,036 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:08:48,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:08:48,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:08:48,461 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-28 05:08:48,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:08:48,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124619344] [2024-11-28 05:08:48,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124619344] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:08:48,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [239729126] [2024-11-28 05:08:48,464 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:08:48,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:08:48,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401d5c67-c017-48fd-8f88-d082b9319f37/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:08:48,466 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401d5c67-c017-48fd-8f88-d082b9319f37/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:08:48,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401d5c67-c017-48fd-8f88-d082b9319f37/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 05:08:48,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:08:48,923 INFO L256 TraceCheckSpWp]: Trace formula consists of 1047 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 05:08:48,927 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:08:48,967 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 05:08:48,968 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:08:48,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [239729126] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:08:48,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:08:48,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-28 05:08:48,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642306379] [2024-11-28 05:08:48,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:08:48,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:08:48,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:08:48,971 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:08:48,971 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:08:48,971 INFO L87 Difference]: Start difference. First operand 341 states and 503 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 05:08:49,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:08:49,033 INFO L93 Difference]: Finished difference Result 712 states and 1065 transitions. [2024-11-28 05:08:49,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:08:49,033 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 109 [2024-11-28 05:08:49,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:08:49,040 INFO L225 Difference]: With dead ends: 712 [2024-11-28 05:08:49,040 INFO L226 Difference]: Without dead ends: 397 [2024-11-28 05:08:49,042 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:08:49,044 INFO L435 NwaCegarLoop]: 513 mSDtfsCounter, 107 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 967 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 [2024-11-28 05:08:49,045 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 967 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:08:49,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2024-11-28 05:08:49,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 389. [2024-11-28 05:08:49,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 301 states have (on average 1.5249169435215948) internal successors, (459), 304 states have internal predecessors, (459), 64 states have call successors, (64), 23 states have call predecessors, (64), 23 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-28 05:08:49,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 586 transitions. [2024-11-28 05:08:49,091 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 586 transitions. Word has length 109 [2024-11-28 05:08:49,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:08:49,092 INFO L471 AbstractCegarLoop]: Abstraction has 389 states and 586 transitions. [2024-11-28 05:08:49,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 05:08:49,092 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 586 transitions. [2024-11-28 05:08:49,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-28 05:08:49,095 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:08:49,095 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:08:49,109 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401d5c67-c017-48fd-8f88-d082b9319f37/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 05:08:49,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401d5c67-c017-48fd-8f88-d082b9319f37/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:08:49,296 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:08:49,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:08:49,297 INFO L85 PathProgramCache]: Analyzing trace with hash 1949484319, now seen corresponding path program 1 times [2024-11-28 05:08:49,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:08:49,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4905756] [2024-11-28 05:08:49,297 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:08:49,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:08:49,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:08:49,597 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-28 05:08:49,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:08:49,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4905756] [2024-11-28 05:08:49,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4905756] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:08:49,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1766419195] [2024-11-28 05:08:49,599 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:08:49,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:08:49,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401d5c67-c017-48fd-8f88-d082b9319f37/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:08:49,603 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401d5c67-c017-48fd-8f88-d082b9319f37/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:08:49,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401d5c67-c017-48fd-8f88-d082b9319f37/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 05:08:50,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:08:50,052 INFO L256 TraceCheckSpWp]: Trace formula consists of 1052 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 05:08:50,057 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:08:50,130 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-28 05:08:50,130 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:08:50,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1766419195] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:08:50,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:08:50,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-28 05:08:50,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656347010] [2024-11-28 05:08:50,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:08:50,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:08:50,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:08:50,132 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:08:50,133 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-28 05:08:50,133 INFO L87 Difference]: Start difference. First operand 389 states and 586 transitions. Second operand has 5 states, 4 states have (on average 19.0) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-28 05:08:50,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:08:50,224 INFO L93 Difference]: Finished difference Result 769 states and 1162 transitions. [2024-11-28 05:08:50,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:08:50,225 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.0) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 110 [2024-11-28 05:08:50,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:08:50,228 INFO L225 Difference]: With dead ends: 769 [2024-11-28 05:08:50,228 INFO L226 Difference]: Without dead ends: 391 [2024-11-28 05:08:50,230 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-28 05:08:50,231 INFO L435 NwaCegarLoop]: 494 mSDtfsCounter, 2 mSDsluCounter, 1471 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1965 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 [2024-11-28 05:08:50,232 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1965 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:08:50,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2024-11-28 05:08:50,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 391. [2024-11-28 05:08:50,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 302 states have (on average 1.5231788079470199) internal successors, (460), 306 states have internal predecessors, (460), 64 states have call successors, (64), 23 states have call predecessors, (64), 24 states have return successors, (65), 63 states have call predecessors, (65), 63 states have call successors, (65) [2024-11-28 05:08:50,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 589 transitions. [2024-11-28 05:08:50,267 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 589 transitions. Word has length 110 [2024-11-28 05:08:50,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:08:50,269 INFO L471 AbstractCegarLoop]: Abstraction has 391 states and 589 transitions. [2024-11-28 05:08:50,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.0) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-28 05:08:50,270 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 589 transitions. [2024-11-28 05:08:50,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-28 05:08:50,272 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:08:50,272 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:08:50,287 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401d5c67-c017-48fd-8f88-d082b9319f37/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-28 05:08:50,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401d5c67-c017-48fd-8f88-d082b9319f37/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:08:50,473 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:08:50,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:08:50,474 INFO L85 PathProgramCache]: Analyzing trace with hash -1467134302, now seen corresponding path program 1 times [2024-11-28 05:08:50,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:08:50,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748592280] [2024-11-28 05:08:50,474 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:08:50,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:08:50,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:08:50,799 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-28 05:08:50,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:08:50,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748592280] [2024-11-28 05:08:50,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748592280] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:08:50,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1176273930] [2024-11-28 05:08:50,800 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:08:50,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:08:50,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401d5c67-c017-48fd-8f88-d082b9319f37/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:08:50,803 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401d5c67-c017-48fd-8f88-d082b9319f37/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:08:50,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401d5c67-c017-48fd-8f88-d082b9319f37/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 05:08:51,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:08:51,228 INFO L256 TraceCheckSpWp]: Trace formula consists of 1053 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 05:08:51,233 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:08:51,334 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-28 05:08:51,334 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:08:51,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1176273930] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:08:51,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:08:51,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2024-11-28 05:08:51,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686393042] [2024-11-28 05:08:51,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:08:51,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:08:51,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:08:51,337 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:08:51,337 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-28 05:08:51,337 INFO L87 Difference]: Start difference. First operand 391 states and 589 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-28 05:08:51,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:08:51,465 INFO L93 Difference]: Finished difference Result 771 states and 1167 transitions. [2024-11-28 05:08:51,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:08:51,467 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 111 [2024-11-28 05:08:51,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:08:51,473 INFO L225 Difference]: With dead ends: 771 [2024-11-28 05:08:51,473 INFO L226 Difference]: Without dead ends: 393 [2024-11-28 05:08:51,475 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-28 05:08:51,476 INFO L435 NwaCegarLoop]: 492 mSDtfsCounter, 2 mSDsluCounter, 1459 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1951 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 [2024-11-28 05:08:51,476 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1951 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:08:51,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2024-11-28 05:08:51,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 393. [2024-11-28 05:08:51,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 303 states have (on average 1.5214521452145215) internal successors, (461), 308 states have internal predecessors, (461), 64 states have call successors, (64), 23 states have call predecessors, (64), 25 states have return successors, (70), 63 states have call predecessors, (70), 63 states have call successors, (70) [2024-11-28 05:08:51,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 595 transitions. [2024-11-28 05:08:51,511 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 595 transitions. Word has length 111 [2024-11-28 05:08:51,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:08:51,511 INFO L471 AbstractCegarLoop]: Abstraction has 393 states and 595 transitions. [2024-11-28 05:08:51,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-28 05:08:51,513 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 595 transitions. [2024-11-28 05:08:51,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-28 05:08:51,519 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:08:51,520 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:08:51,532 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401d5c67-c017-48fd-8f88-d082b9319f37/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-28 05:08:51,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401d5c67-c017-48fd-8f88-d082b9319f37/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:08:51,720 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:08:51,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:08:51,721 INFO L85 PathProgramCache]: Analyzing trace with hash -1185311944, now seen corresponding path program 1 times [2024-11-28 05:08:51,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:08:51,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626329612] [2024-11-28 05:08:51,721 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:08:51,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:08:51,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:08:52,012 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-28 05:08:52,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:08:52,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626329612] [2024-11-28 05:08:52,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626329612] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:08:52,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:08:52,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:08:52,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626898520] [2024-11-28 05:08:52,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:08:52,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:08:52,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:08:52,015 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:08:52,015 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:08:52,015 INFO L87 Difference]: Start difference. First operand 393 states and 595 transitions. Second operand has 5 states, 4 states have (on average 18.5) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-28 05:08:52,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:08:52,095 INFO L93 Difference]: Finished difference Result 763 states and 1158 transitions. [2024-11-28 05:08:52,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:08:52,096 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.5) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 112 [2024-11-28 05:08:52,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:08:52,103 INFO L225 Difference]: With dead ends: 763 [2024-11-28 05:08:52,103 INFO L226 Difference]: Without dead ends: 393 [2024-11-28 05:08:52,105 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 [2024-11-28 05:08:52,105 INFO L435 NwaCegarLoop]: 495 mSDtfsCounter, 2 mSDsluCounter, 1474 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1969 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 [2024-11-28 05:08:52,106 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1969 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:08:52,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2024-11-28 05:08:52,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 393. [2024-11-28 05:08:52,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 303 states have (on average 1.5214521452145215) internal successors, (461), 308 states have internal predecessors, (461), 64 states have call successors, (64), 23 states have call predecessors, (64), 25 states have return successors, (69), 63 states have call predecessors, (69), 63 states have call successors, (69) [2024-11-28 05:08:52,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 594 transitions. [2024-11-28 05:08:52,144 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 594 transitions. Word has length 112 [2024-11-28 05:08:52,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:08:52,145 INFO L471 AbstractCegarLoop]: Abstraction has 393 states and 594 transitions. [2024-11-28 05:08:52,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.5) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-28 05:08:52,145 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 594 transitions. [2024-11-28 05:08:52,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-28 05:08:52,150 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:08:52,150 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:08:52,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 05:08:52,151 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:08:52,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:08:52,151 INFO L85 PathProgramCache]: Analyzing trace with hash -813535331, now seen corresponding path program 2 times [2024-11-28 05:08:52,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:08:52,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928549869] [2024-11-28 05:08:52,152 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 05:08:52,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:08:52,213 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 05:08:52,213 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:08:52,382 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 05:08:52,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:08:52,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928549869] [2024-11-28 05:08:52,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928549869] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:08:52,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:08:52,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:08:52,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90749739] [2024-11-28 05:08:52,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:08:52,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:08:52,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:08:52,384 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:08:52,385 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:08:52,385 INFO L87 Difference]: Start difference. First operand 393 states and 594 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-28 05:08:52,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:08:52,470 INFO L93 Difference]: Finished difference Result 761 states and 1153 transitions. [2024-11-28 05:08:52,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:08:52,472 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 113 [2024-11-28 05:08:52,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:08:52,478 INFO L225 Difference]: With dead ends: 761 [2024-11-28 05:08:52,479 INFO L226 Difference]: Without dead ends: 393 [2024-11-28 05:08:52,481 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 [2024-11-28 05:08:52,483 INFO L435 NwaCegarLoop]: 493 mSDtfsCounter, 2 mSDsluCounter, 1462 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1955 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:08:52,483 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1955 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:08:52,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2024-11-28 05:08:52,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 393. [2024-11-28 05:08:52,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 303 states have (on average 1.5214521452145215) internal successors, (461), 308 states have internal predecessors, (461), 64 states have call successors, (64), 23 states have call predecessors, (64), 25 states have return successors, (68), 63 states have call predecessors, (68), 63 states have call successors, (68) [2024-11-28 05:08:52,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 593 transitions. [2024-11-28 05:08:52,516 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 593 transitions. Word has length 113 [2024-11-28 05:08:52,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:08:52,517 INFO L471 AbstractCegarLoop]: Abstraction has 393 states and 593 transitions. [2024-11-28 05:08:52,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-28 05:08:52,518 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 593 transitions. [2024-11-28 05:08:52,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-28 05:08:52,521 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:08:52,521 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:08:52,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 05:08:52,521 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:08:52,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:08:52,522 INFO L85 PathProgramCache]: Analyzing trace with hash -7412267, now seen corresponding path program 3 times [2024-11-28 05:08:52,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:08:52,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247504567] [2024-11-28 05:08:52,522 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 05:08:52,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:08:52,568 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-28 05:08:52,568 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:08:52,743 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 05:08:52,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:08:52,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247504567] [2024-11-28 05:08:52,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247504567] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:08:52,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:08:52,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:08:52,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58201024] [2024-11-28 05:08:52,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:08:52,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:08:52,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:08:52,745 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:08:52,745 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:08:52,746 INFO L87 Difference]: Start difference. First operand 393 states and 593 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-28 05:08:52,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:08:52,838 INFO L93 Difference]: Finished difference Result 763 states and 1159 transitions. [2024-11-28 05:08:52,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:08:52,839 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 114 [2024-11-28 05:08:52,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:08:52,843 INFO L225 Difference]: With dead ends: 763 [2024-11-28 05:08:52,843 INFO L226 Difference]: Without dead ends: 395 [2024-11-28 05:08:52,845 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 [2024-11-28 05:08:52,845 INFO L435 NwaCegarLoop]: 496 mSDtfsCounter, 1 mSDsluCounter, 1470 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1966 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 [2024-11-28 05:08:52,846 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1966 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:08:52,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2024-11-28 05:08:52,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 395. [2024-11-28 05:08:52,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 304 states have (on average 1.519736842105263) internal successors, (462), 310 states have internal predecessors, (462), 64 states have call successors, (64), 23 states have call predecessors, (64), 26 states have return successors, (73), 63 states have call predecessors, (73), 63 states have call successors, (73) [2024-11-28 05:08:52,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 599 transitions. [2024-11-28 05:08:52,871 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 599 transitions. Word has length 114 [2024-11-28 05:08:52,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:08:52,872 INFO L471 AbstractCegarLoop]: Abstraction has 395 states and 599 transitions. [2024-11-28 05:08:52,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-28 05:08:52,872 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 599 transitions. [2024-11-28 05:08:52,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-28 05:08:52,875 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:08:52,875 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:08:52,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 05:08:52,876 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:08:52,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:08:52,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1552334584, now seen corresponding path program 1 times [2024-11-28 05:08:52,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:08:52,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48221844] [2024-11-28 05:08:52,877 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:08:52,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:08:52,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:08:53,125 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 05:08:53,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:08:53,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48221844] [2024-11-28 05:08:53,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48221844] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:08:53,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:08:53,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:08:53,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448690422] [2024-11-28 05:08:53,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:08:53,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:08:53,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:08:53,128 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:08:53,128 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:08:53,128 INFO L87 Difference]: Start difference. First operand 395 states and 599 transitions. Second operand has 5 states, 4 states have (on average 19.25) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-28 05:08:53,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:08:53,205 INFO L93 Difference]: Finished difference Result 769 states and 1169 transitions. [2024-11-28 05:08:53,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:08:53,206 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.25) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 115 [2024-11-28 05:08:53,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:08:53,210 INFO L225 Difference]: With dead ends: 769 [2024-11-28 05:08:53,210 INFO L226 Difference]: Without dead ends: 397 [2024-11-28 05:08:53,212 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 [2024-11-28 05:08:53,214 INFO L435 NwaCegarLoop]: 496 mSDtfsCounter, 1 mSDsluCounter, 1476 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1972 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 [2024-11-28 05:08:53,215 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1972 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:08:53,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2024-11-28 05:08:53,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 397. [2024-11-28 05:08:53,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 305 states have (on average 1.518032786885246) internal successors, (463), 312 states have internal predecessors, (463), 64 states have call successors, (64), 23 states have call predecessors, (64), 27 states have return successors, (75), 63 states have call predecessors, (75), 63 states have call successors, (75) [2024-11-28 05:08:53,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 602 transitions. [2024-11-28 05:08:53,243 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 602 transitions. Word has length 115 [2024-11-28 05:08:53,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:08:53,243 INFO L471 AbstractCegarLoop]: Abstraction has 397 states and 602 transitions. [2024-11-28 05:08:53,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.25) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-28 05:08:53,243 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 602 transitions. [2024-11-28 05:08:53,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-28 05:08:53,246 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:08:53,246 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:08:53,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 05:08:53,247 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:08:53,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:08:53,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1867467214, now seen corresponding path program 1 times [2024-11-28 05:08:53,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:08:53,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092764589] [2024-11-28 05:08:53,247 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:08:53,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:08:53,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:08:53,497 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-28 05:08:53,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:08:53,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092764589] [2024-11-28 05:08:53,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092764589] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:08:53,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [127187339] [2024-11-28 05:08:53,498 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:08:53,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:08:53,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401d5c67-c017-48fd-8f88-d082b9319f37/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:08:53,500 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401d5c67-c017-48fd-8f88-d082b9319f37/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:08:53,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401d5c67-c017-48fd-8f88-d082b9319f37/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 05:08:53,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:08:53,947 INFO L256 TraceCheckSpWp]: Trace formula consists of 1058 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 05:08:53,952 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:08:54,026 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-28 05:08:54,028 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:08:54,189 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-28 05:08:54,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [127187339] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:08:54,189 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:08:54,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 11 [2024-11-28 05:08:54,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673156223] [2024-11-28 05:08:54,190 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:08:54,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 05:08:54,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:08:54,192 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 05:08:54,192 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-28 05:08:54,192 INFO L87 Difference]: Start difference. First operand 397 states and 602 transitions. Second operand has 11 states, 10 states have (on average 12.5) internal successors, (125), 11 states have internal predecessors, (125), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2024-11-28 05:08:55,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:08:55,200 INFO L93 Difference]: Finished difference Result 1114 states and 1769 transitions. [2024-11-28 05:08:55,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 05:08:55,201 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 12.5) internal successors, (125), 11 states have internal predecessors, (125), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) Word has length 116 [2024-11-28 05:08:55,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:08:55,208 INFO L225 Difference]: With dead ends: 1114 [2024-11-28 05:08:55,208 INFO L226 Difference]: Without dead ends: 745 [2024-11-28 05:08:55,212 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=106, Invalid=400, Unknown=0, NotChecked=0, Total=506 [2024-11-28 05:08:55,215 INFO L435 NwaCegarLoop]: 485 mSDtfsCounter, 1173 mSDsluCounter, 2955 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1173 SdHoareTripleChecker+Valid, 3440 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 05:08:55,215 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1173 Valid, 3440 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 05:08:55,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2024-11-28 05:08:55,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 721. [2024-11-28 05:08:55,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 721 states, 565 states have (on average 1.575221238938053) internal successors, (890), 571 states have internal predecessors, (890), 128 states have call successors, (128), 24 states have call predecessors, (128), 27 states have return successors, (149), 127 states have call predecessors, (149), 127 states have call successors, (149) [2024-11-28 05:08:55,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 1167 transitions. [2024-11-28 05:08:55,297 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 1167 transitions. Word has length 116 [2024-11-28 05:08:55,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:08:55,298 INFO L471 AbstractCegarLoop]: Abstraction has 721 states and 1167 transitions. [2024-11-28 05:08:55,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 12.5) internal successors, (125), 11 states have internal predecessors, (125), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2024-11-28 05:08:55,298 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 1167 transitions. [2024-11-28 05:08:55,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-28 05:08:55,303 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:08:55,304 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:08:55,316 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401d5c67-c017-48fd-8f88-d082b9319f37/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-28 05:08:55,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_401d5c67-c017-48fd-8f88-d082b9319f37/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-28 05:08:55,508 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:08:55,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:08:55,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1604237543, now seen corresponding path program 1 times [2024-11-28 05:08:55,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:08:55,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737139947] [2024-11-28 05:08:55,509 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:08:55,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:08:55,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:08:55,622 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-28 05:08:55,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:08:55,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737139947] [2024-11-28 05:08:55,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737139947] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:08:55,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:08:55,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:08:55,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275218138] [2024-11-28 05:08:55,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:08:55,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:08:55,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:08:55,624 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:08:55,625 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:08:55,625 INFO L87 Difference]: Start difference. First operand 721 states and 1167 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 05:08:55,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:08:55,717 INFO L93 Difference]: Finished difference Result 1665 states and 2745 transitions. [2024-11-28 05:08:55,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:08:55,717 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 120 [2024-11-28 05:08:55,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:08:55,727 INFO L225 Difference]: With dead ends: 1665 [2024-11-28 05:08:55,727 INFO L226 Difference]: Without dead ends: 1022 [2024-11-28 05:08:55,732 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 [2024-11-28 05:08:55,733 INFO L435 NwaCegarLoop]: 519 mSDtfsCounter, 104 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 1010 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 [2024-11-28 05:08:55,733 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 1010 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:08:55,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1022 states. [2024-11-28 05:08:55,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1022 to 1014. [2024-11-28 05:08:55,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1014 states, 794 states have (on average 1.5969773299748111) internal successors, (1268), 800 states have internal predecessors, (1268), 192 states have call successors, (192), 24 states have call predecessors, (192), 27 states have return successors, (223), 191 states have call predecessors, (223), 191 states have call successors, (223) [2024-11-28 05:08:55,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1014 states to 1014 states and 1683 transitions. [2024-11-28 05:08:55,832 INFO L78 Accepts]: Start accepts. Automaton has 1014 states and 1683 transitions. Word has length 120 [2024-11-28 05:08:55,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:08:55,832 INFO L471 AbstractCegarLoop]: Abstraction has 1014 states and 1683 transitions. [2024-11-28 05:08:55,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 05:08:55,833 INFO L276 IsEmpty]: Start isEmpty. Operand 1014 states and 1683 transitions. [2024-11-28 05:08:55,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-28 05:08:55,840 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:08:55,840 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:08:55,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 05:08:55,841 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:08:55,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:08:55,841 INFO L85 PathProgramCache]: Analyzing trace with hash 2020011059, now seen corresponding path program 1 times [2024-11-28 05:08:55,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:08:55,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560614306] [2024-11-28 05:08:55,842 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:08:55,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:08:55,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:08:55,928 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-28 05:08:55,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:08:55,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560614306] [2024-11-28 05:08:55,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560614306] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:08:55,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:08:55,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:08:55,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876428125] [2024-11-28 05:08:55,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:08:55,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:08:55,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:08:55,929 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:08:55,929 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:08:55,929 INFO L87 Difference]: Start difference. First operand 1014 states and 1683 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 05:08:56,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:08:56,053 INFO L93 Difference]: Finished difference Result 2388 states and 3992 transitions. [2024-11-28 05:08:56,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:08:56,054 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 121 [2024-11-28 05:08:56,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:08:56,065 INFO L225 Difference]: With dead ends: 2388 [2024-11-28 05:08:56,066 INFO L226 Difference]: Without dead ends: 1503 [2024-11-28 05:08:56,070 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 [2024-11-28 05:08:56,071 INFO L435 NwaCegarLoop]: 502 mSDtfsCounter, 102 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 996 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 [2024-11-28 05:08:56,071 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 996 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:08:56,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1503 states. [2024-11-28 05:08:56,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1503 to 1495. [2024-11-28 05:08:56,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1495 states, 1180 states have (on average 1.6084745762711865) internal successors, (1898), 1186 states have internal predecessors, (1898), 287 states have call successors, (287), 24 states have call predecessors, (287), 27 states have return successors, (318), 286 states have call predecessors, (318), 286 states have call successors, (318) [2024-11-28 05:08:56,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1495 states to 1495 states and 2503 transitions. [2024-11-28 05:08:56,197 INFO L78 Accepts]: Start accepts. Automaton has 1495 states and 2503 transitions. Word has length 121 [2024-11-28 05:08:56,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:08:56,198 INFO L471 AbstractCegarLoop]: Abstraction has 1495 states and 2503 transitions. [2024-11-28 05:08:56,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 05:08:56,198 INFO L276 IsEmpty]: Start isEmpty. Operand 1495 states and 2503 transitions. [2024-11-28 05:08:56,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-28 05:08:56,208 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:08:56,209 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:08:56,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 05:08:56,209 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:08:56,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:08:56,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1483245237, now seen corresponding path program 1 times [2024-11-28 05:08:56,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:08:56,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128577116] [2024-11-28 05:08:56,214 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:08:56,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:08:56,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:08:56,300 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-28 05:08:56,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:08:56,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128577116] [2024-11-28 05:08:56,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128577116] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:08:56,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:08:56,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:08:56,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785710947] [2024-11-28 05:08:56,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:08:56,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:08:56,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:08:56,302 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:08:56,303 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:08:56,303 INFO L87 Difference]: Start difference. First operand 1495 states and 2503 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 05:08:56,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:08:56,449 INFO L93 Difference]: Finished difference Result 3462 states and 5848 transitions. [2024-11-28 05:08:56,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:08:56,449 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 122 [2024-11-28 05:08:56,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:08:56,466 INFO L225 Difference]: With dead ends: 3462 [2024-11-28 05:08:56,467 INFO L226 Difference]: Without dead ends: 2227 [2024-11-28 05:08:56,473 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 [2024-11-28 05:08:56,474 INFO L435 NwaCegarLoop]: 500 mSDtfsCounter, 100 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 991 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 [2024-11-28 05:08:56,474 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 991 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:08:56,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2227 states. [2024-11-28 05:08:56,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2227 to 2219. [2024-11-28 05:08:56,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2219 states, 1781 states have (on average 1.6176305446378438) internal successors, (2881), 1787 states have internal predecessors, (2881), 410 states have call successors, (410), 24 states have call predecessors, (410), 27 states have return successors, (457), 409 states have call predecessors, (457), 409 states have call successors, (457) [2024-11-28 05:08:56,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2219 states to 2219 states and 3748 transitions. [2024-11-28 05:08:56,687 INFO L78 Accepts]: Start accepts. Automaton has 2219 states and 3748 transitions. Word has length 122 [2024-11-28 05:08:56,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:08:56,688 INFO L471 AbstractCegarLoop]: Abstraction has 2219 states and 3748 transitions. [2024-11-28 05:08:56,688 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 05:08:56,688 INFO L276 IsEmpty]: Start isEmpty. Operand 2219 states and 3748 transitions. [2024-11-28 05:08:56,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-28 05:08:56,702 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:08:56,702 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:08:56,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 05:08:56,703 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:08:56,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:08:56,703 INFO L85 PathProgramCache]: Analyzing trace with hash -403120492, now seen corresponding path program 1 times [2024-11-28 05:08:56,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:08:56,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034703731] [2024-11-28 05:08:56,704 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:08:56,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:08:56,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:08:56,789 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-28 05:08:56,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:08:56,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034703731] [2024-11-28 05:08:56,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034703731] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:08:56,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:08:56,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:08:56,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742226578] [2024-11-28 05:08:56,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:08:56,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:08:56,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:08:56,791 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:08:56,791 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:08:56,791 INFO L87 Difference]: Start difference. First operand 2219 states and 3748 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 05:08:57,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:08:57,032 INFO L93 Difference]: Finished difference Result 5125 states and 8725 transitions. [2024-11-28 05:08:57,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:08:57,033 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 123 [2024-11-28 05:08:57,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:08:57,058 INFO L225 Difference]: With dead ends: 5125 [2024-11-28 05:08:57,058 INFO L226 Difference]: Without dead ends: 3378 [2024-11-28 05:08:57,066 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 [2024-11-28 05:08:57,067 INFO L435 NwaCegarLoop]: 500 mSDtfsCounter, 98 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 991 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 [2024-11-28 05:08:57,067 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 991 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:08:57,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3378 states. [2024-11-28 05:08:57,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3378 to 3370. [2024-11-28 05:08:57,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3370 states, 2753 states have (on average 1.6236832546313114) internal successors, (4470), 2759 states have internal predecessors, (4470), 589 states have call successors, (589), 24 states have call predecessors, (589), 27 states have return successors, (662), 588 states have call predecessors, (662), 588 states have call successors, (662) [2024-11-28 05:08:57,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3370 states to 3370 states and 5721 transitions. [2024-11-28 05:08:57,370 INFO L78 Accepts]: Start accepts. Automaton has 3370 states and 5721 transitions. Word has length 123 [2024-11-28 05:08:57,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:08:57,371 INFO L471 AbstractCegarLoop]: Abstraction has 3370 states and 5721 transitions. [2024-11-28 05:08:57,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 05:08:57,372 INFO L276 IsEmpty]: Start isEmpty. Operand 3370 states and 5721 transitions. [2024-11-28 05:08:57,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-28 05:08:57,391 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:08:57,391 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:08:57,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 05:08:57,392 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:08:57,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:08:57,392 INFO L85 PathProgramCache]: Analyzing trace with hash -1104793423, now seen corresponding path program 1 times [2024-11-28 05:08:57,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:08:57,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51903613] [2024-11-28 05:08:57,393 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:08:57,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:08:57,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:08:57,505 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-28 05:08:57,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:08:57,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51903613] [2024-11-28 05:08:57,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51903613] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:08:57,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:08:57,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:08:57,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130127835] [2024-11-28 05:08:57,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:08:57,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:08:57,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:08:57,507 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:08:57,507 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:08:57,507 INFO L87 Difference]: Start difference. First operand 3370 states and 5721 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 05:08:57,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:08:57,832 INFO L93 Difference]: Finished difference Result 8121 states and 13864 transitions. [2024-11-28 05:08:57,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:08:57,832 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 124 [2024-11-28 05:08:57,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:08:57,870 INFO L225 Difference]: With dead ends: 8121 [2024-11-28 05:08:57,870 INFO L226 Difference]: Without dead ends: 5464 [2024-11-28 05:08:57,881 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 [2024-11-28 05:08:57,881 INFO L435 NwaCegarLoop]: 513 mSDtfsCounter, 96 mSDsluCounter, 497 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 1010 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 [2024-11-28 05:08:57,882 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 1010 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:08:57,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5464 states. [2024-11-28 05:08:58,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5464 to 5456. [2024-11-28 05:08:58,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5456 states, 4463 states have (on average 1.6179699753529015) internal successors, (7221), 4469 states have internal predecessors, (7221), 965 states have call successors, (965), 24 states have call predecessors, (965), 27 states have return successors, (1082), 964 states have call predecessors, (1082), 964 states have call successors, (1082) [2024-11-28 05:08:58,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5456 states to 5456 states and 9268 transitions. [2024-11-28 05:08:58,465 INFO L78 Accepts]: Start accepts. Automaton has 5456 states and 9268 transitions. Word has length 124 [2024-11-28 05:08:58,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:08:58,465 INFO L471 AbstractCegarLoop]: Abstraction has 5456 states and 9268 transitions. [2024-11-28 05:08:58,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 05:08:58,466 INFO L276 IsEmpty]: Start isEmpty. Operand 5456 states and 9268 transitions. [2024-11-28 05:08:58,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-28 05:08:58,494 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:08:58,494 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:08:58,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 05:08:58,495 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:08:58,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:08:58,495 INFO L85 PathProgramCache]: Analyzing trace with hash -2011938664, now seen corresponding path program 1 times [2024-11-28 05:08:58,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:08:58,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014181804] [2024-11-28 05:08:58,496 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:08:58,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:08:58,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:08:58,613 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-28 05:08:58,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:08:58,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014181804] [2024-11-28 05:08:58,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014181804] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:08:58,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:08:58,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:08:58,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869629437] [2024-11-28 05:08:58,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:08:58,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:08:58,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:08:58,616 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:08:58,616 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:08:58,616 INFO L87 Difference]: Start difference. First operand 5456 states and 9268 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 05:08:59,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:08:59,096 INFO L93 Difference]: Finished difference Result 13410 states and 22921 transitions. [2024-11-28 05:08:59,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:08:59,096 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 125 [2024-11-28 05:08:59,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:08:59,185 INFO L225 Difference]: With dead ends: 13410 [2024-11-28 05:08:59,185 INFO L226 Difference]: Without dead ends: 9053 [2024-11-28 05:08:59,203 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 [2024-11-28 05:08:59,204 INFO L435 NwaCegarLoop]: 500 mSDtfsCounter, 94 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 994 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 [2024-11-28 05:08:59,205 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 994 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:08:59,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9053 states. [2024-11-28 05:08:59,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9053 to 9045. [2024-11-28 05:08:59,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9045 states, 7446 states have (on average 1.6161697555734622) internal successors, (12034), 7452 states have internal predecessors, (12034), 1571 states have call successors, (1571), 24 states have call predecessors, (1571), 27 states have return successors, (1766), 1570 states have call predecessors, (1766), 1570 states have call successors, (1766) [2024-11-28 05:08:59,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9045 states to 9045 states and 15371 transitions. [2024-11-28 05:08:59,857 INFO L78 Accepts]: Start accepts. Automaton has 9045 states and 15371 transitions. Word has length 125 [2024-11-28 05:08:59,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:08:59,858 INFO L471 AbstractCegarLoop]: Abstraction has 9045 states and 15371 transitions. [2024-11-28 05:08:59,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 05:08:59,858 INFO L276 IsEmpty]: Start isEmpty. Operand 9045 states and 15371 transitions. [2024-11-28 05:08:59,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-28 05:08:59,889 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:08:59,890 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:08:59,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 05:08:59,890 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:08:59,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:08:59,891 INFO L85 PathProgramCache]: Analyzing trace with hash -618554509, now seen corresponding path program 1 times [2024-11-28 05:08:59,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:08:59,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619316500] [2024-11-28 05:08:59,891 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:08:59,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:08:59,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:08:59,982 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-28 05:08:59,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:08:59,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619316500] [2024-11-28 05:08:59,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619316500] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:08:59,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:08:59,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:08:59,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016117191] [2024-11-28 05:08:59,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:08:59,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:08:59,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:08:59,984 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:08:59,984 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:08:59,985 INFO L87 Difference]: Start difference. First operand 9045 states and 15371 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 05:09:00,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:09:00,887 INFO L93 Difference]: Finished difference Result 23356 states and 39843 transitions. [2024-11-28 05:09:00,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:09:00,887 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 126 [2024-11-28 05:09:00,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:09:01,004 INFO L225 Difference]: With dead ends: 23356 [2024-11-28 05:09:01,005 INFO L226 Difference]: Without dead ends: 15840 [2024-11-28 05:09:01,046 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 [2024-11-28 05:09:01,047 INFO L435 NwaCegarLoop]: 513 mSDtfsCounter, 92 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 1011 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 [2024-11-28 05:09:01,048 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 1011 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:09:01,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15840 states. [2024-11-28 05:09:02,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15840 to 15832. [2024-11-28 05:09:02,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15832 states, 13030 states have (on average 1.606907137375288) internal successors, (20938), 13036 states have internal predecessors, (20938), 2774 states have call successors, (2774), 24 states have call predecessors, (2774), 27 states have return successors, (3113), 2773 states have call predecessors, (3113), 2773 states have call successors, (3113) [2024-11-28 05:09:02,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15832 states to 15832 states and 26825 transitions. [2024-11-28 05:09:02,271 INFO L78 Accepts]: Start accepts. Automaton has 15832 states and 26825 transitions. Word has length 126 [2024-11-28 05:09:02,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:09:02,271 INFO L471 AbstractCegarLoop]: Abstraction has 15832 states and 26825 transitions. [2024-11-28 05:09:02,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 05:09:02,273 INFO L276 IsEmpty]: Start isEmpty. Operand 15832 states and 26825 transitions. [2024-11-28 05:09:02,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-28 05:09:02,320 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:09:02,320 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:09:02,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 05:09:02,320 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:09:02,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:09:02,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1061058201, now seen corresponding path program 1 times [2024-11-28 05:09:02,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:09:02,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310969152] [2024-11-28 05:09:02,321 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:09:02,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:09:02,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:09:02,415 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-28 05:09:02,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:09:02,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310969152] [2024-11-28 05:09:02,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310969152] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:09:02,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:09:02,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:09:02,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901677131] [2024-11-28 05:09:02,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:09:02,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:09:02,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:09:02,419 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:09:02,419 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:09:02,419 INFO L87 Difference]: Start difference. First operand 15832 states and 26825 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 05:09:03,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:09:03,756 INFO L93 Difference]: Finished difference Result 41882 states and 71260 transitions. [2024-11-28 05:09:03,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:09:03,757 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 127 [2024-11-28 05:09:03,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:09:04,021 INFO L225 Difference]: With dead ends: 41882 [2024-11-28 05:09:04,021 INFO L226 Difference]: Without dead ends: 28192 [2024-11-28 05:09:04,091 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 [2024-11-28 05:09:04,091 INFO L435 NwaCegarLoop]: 500 mSDtfsCounter, 90 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 994 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 [2024-11-28 05:09:04,092 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 994 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:09:04,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28192 states. [2024-11-28 05:09:05,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28192 to 28184. [2024-11-28 05:09:06,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28184 states, 23343 states have (on average 1.6022790558197317) internal successors, (37402), 23349 states have internal predecessors, (37402), 4813 states have call successors, (4813), 24 states have call predecessors, (4813), 27 states have return successors, (5426), 4812 states have call predecessors, (5426), 4812 states have call successors, (5426) [2024-11-28 05:09:06,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28184 states to 28184 states and 47641 transitions. [2024-11-28 05:09:06,186 INFO L78 Accepts]: Start accepts. Automaton has 28184 states and 47641 transitions. Word has length 127 [2024-11-28 05:09:06,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:09:06,187 INFO L471 AbstractCegarLoop]: Abstraction has 28184 states and 47641 transitions. [2024-11-28 05:09:06,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 05:09:06,187 INFO L276 IsEmpty]: Start isEmpty. Operand 28184 states and 47641 transitions. [2024-11-28 05:09:06,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-28 05:09:06,236 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:09:06,237 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:09:06,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 05:09:06,237 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:09:06,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:09:06,239 INFO L85 PathProgramCache]: Analyzing trace with hash 131890837, now seen corresponding path program 1 times [2024-11-28 05:09:06,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:09:06,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630112642] [2024-11-28 05:09:06,239 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:09:06,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:09:06,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:09:06,335 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-28 05:09:06,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:09:06,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630112642] [2024-11-28 05:09:06,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630112642] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:09:06,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:09:06,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:09:06,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665517272] [2024-11-28 05:09:06,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:09:06,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:09:06,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:09:06,338 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:09:06,338 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:09:06,339 INFO L87 Difference]: Start difference. First operand 28184 states and 47641 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 05:09:08,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:09:08,483 INFO L93 Difference]: Finished difference Result 76809 states and 130257 transitions. [2024-11-28 05:09:08,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:09:08,484 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 128 [2024-11-28 05:09:08,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:09:08,838 INFO L225 Difference]: With dead ends: 76809 [2024-11-28 05:09:08,838 INFO L226 Difference]: Without dead ends: 51502 [2024-11-28 05:09:08,941 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 [2024-11-28 05:09:08,942 INFO L435 NwaCegarLoop]: 503 mSDtfsCounter, 88 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 997 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 [2024-11-28 05:09:08,943 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 997 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:09:09,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51502 states. [2024-11-28 05:09:11,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51502 to 51494. [2024-11-28 05:09:12,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51494 states, 42938 states have (on average 1.5961619078671574) internal successors, (68536), 42944 states have internal predecessors, (68536), 8528 states have call successors, (8528), 24 states have call predecessors, (8528), 27 states have return successors, (9673), 8527 states have call predecessors, (9673), 8527 states have call successors, (9673) [2024-11-28 05:09:12,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51494 states to 51494 states and 86737 transitions. [2024-11-28 05:09:12,372 INFO L78 Accepts]: Start accepts. Automaton has 51494 states and 86737 transitions. Word has length 128 [2024-11-28 05:09:12,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:09:12,373 INFO L471 AbstractCegarLoop]: Abstraction has 51494 states and 86737 transitions. [2024-11-28 05:09:12,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 05:09:12,373 INFO L276 IsEmpty]: Start isEmpty. Operand 51494 states and 86737 transitions. [2024-11-28 05:09:12,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-28 05:09:12,443 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:09:12,443 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:09:12,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-28 05:09:12,443 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:09:12,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:09:12,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1819220871, now seen corresponding path program 1 times [2024-11-28 05:09:12,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:09:12,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109234962] [2024-11-28 05:09:12,444 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:09:12,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:09:12,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:09:12,547 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-28 05:09:12,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:09:12,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109234962] [2024-11-28 05:09:12,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109234962] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:09:12,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:09:12,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:09:12,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064079188] [2024-11-28 05:09:12,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:09:12,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:09:12,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:09:12,549 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:09:12,549 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:09:12,550 INFO L87 Difference]: Start difference. First operand 51494 states and 86737 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 05:09:16,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:09:16,493 INFO L93 Difference]: Finished difference Result 96061 states and 162099 transitions. [2024-11-28 05:09:16,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:09:16,494 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 129 [2024-11-28 05:09:16,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:09:17,023 INFO L225 Difference]: With dead ends: 96061 [2024-11-28 05:09:17,024 INFO L226 Difference]: Without dead ends: 95873 [2024-11-28 05:09:17,063 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 [2024-11-28 05:09:17,067 INFO L435 NwaCegarLoop]: 509 mSDtfsCounter, 83 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 1008 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 [2024-11-28 05:09:17,068 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 1008 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:09:17,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95873 states. [2024-11-28 05:09:21,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95873 to 95865. [2024-11-28 05:09:21,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95865 states, 80510 states have (on average 1.5885604272761147) internal successors, (127895), 80516 states have internal predecessors, (127895), 15327 states have call successors, (15327), 24 states have call predecessors, (15327), 27 states have return successors, (17518), 15326 states have call predecessors, (17518), 15326 states have call successors, (17518) [2024-11-28 05:09:22,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95865 states to 95865 states and 160740 transitions. [2024-11-28 05:09:22,478 INFO L78 Accepts]: Start accepts. Automaton has 95865 states and 160740 transitions. Word has length 129 [2024-11-28 05:09:22,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:09:22,479 INFO L471 AbstractCegarLoop]: Abstraction has 95865 states and 160740 transitions. [2024-11-28 05:09:22,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 05:09:22,479 INFO L276 IsEmpty]: Start isEmpty. Operand 95865 states and 160740 transitions. [2024-11-28 05:09:22,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-28 05:09:22,529 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:09:22,529 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:09:22,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-28 05:09:22,530 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:09:22,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:09:22,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1899738092, now seen corresponding path program 1 times [2024-11-28 05:09:22,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:09:22,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586139696] [2024-11-28 05:09:22,531 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:09:22,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:09:22,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:09:23,004 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-28 05:09:23,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:09:23,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586139696] [2024-11-28 05:09:23,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586139696] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:09:23,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:09:23,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 05:09:23,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623451845] [2024-11-28 05:09:23,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:09:23,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 05:09:23,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:09:23,006 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 05:09:23,006 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2024-11-28 05:09:23,007 INFO L87 Difference]: Start difference. First operand 95865 states and 160740 transitions. Second operand has 14 states, 12 states have (on average 7.416666666666667) internal successors, (89), 12 states have internal predecessors, (89), 6 states have call successors, (15), 3 states have call predecessors, (15), 4 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-28 05:09:30,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:09:30,844 INFO L93 Difference]: Finished difference Result 191267 states and 326133 transitions. [2024-11-28 05:09:30,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-28 05:09:30,844 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 7.416666666666667) internal successors, (89), 12 states have internal predecessors, (89), 6 states have call successors, (15), 3 states have call predecessors, (15), 4 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) Word has length 130 [2024-11-28 05:09:30,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:09:32,185 INFO L225 Difference]: With dead ends: 191267 [2024-11-28 05:09:32,185 INFO L226 Difference]: Without dead ends: 191085 [2024-11-28 05:09:32,291 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=159, Invalid=833, Unknown=0, NotChecked=0, Total=992 [2024-11-28 05:09:32,293 INFO L435 NwaCegarLoop]: 571 mSDtfsCounter, 1551 mSDsluCounter, 6100 mSDsCounter, 0 mSdLazyCounter, 1260 mSolverCounterSat, 481 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1551 SdHoareTripleChecker+Valid, 6671 SdHoareTripleChecker+Invalid, 1741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 481 IncrementalHoareTripleChecker+Valid, 1260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-28 05:09:32,293 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1551 Valid, 6671 Invalid, 1741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [481 Valid, 1260 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-28 05:09:32,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191085 states.